Complete List of Highway Test Instruments and Equipment

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Note: Longhui Company can customize a complete set of testing and inspection instruments and equipment for highway engineering laboratories according to the needs of different customers.

List of Equipment Configuration for Highway Engineering Testing and Inspection Instruments:(Please contact us for details)

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Complete list of testing and inspection instruments and equipment for highway engineering in 2019. New standard configuration:(Please contact us for details)

1. Soil: standard sieve, shaking sieve machine, specific gravity meter, electronic balance, oven, photoelectric liquid plastic limit tester, automatic compaction instrument, pavement material strength tester, multifunctional demoulder, CBR test device, vibration table test device, lever pressure gauge and bearing plate or pavement material strength tester and accessories, triaxial apparatus, free expansion rate measuring device

2. Aggregates: standard sieve, shaking sieve machine, crushing value tester (for cement concrete and asphalt pavement), press machine, Los Angeles abrasion machine, accelerated polishing machine, pendulum friction coefficient tester, impact tester, needle gauge, vernier caliper, sand equivalent testing device, electronic balance, oven, fine aggregate angularity measuring device, length gauge and accessories

3. Stone materials: electric stone cutting machine, grinding wheel smoothing machine, press machine, low-temperature testing chamber

4. Cement: electronic balance, cement slurry mixer, cement standard consistency meter, Rayleigh clamp, boiling box, cement mortar mixer, cement mortar compaction table, standard constant temperature and humidity curing box, electric bending test machine, press machine, negative pressure sieve analyzer, cement mortar flowability tester, air permeability specific surface area meter

5. Cement concrete, mortar, additives: standard curing room, cement concrete mixer, cement concrete standard vibration table, press machine, flexural test fixture, cement mortar consistency meter, cement mortar layering meter, mortar flowability tester, slump cone, volumetric cylinder, air content tester, concrete penetration resistance meter, concrete permeability meter, micrometer, analytical balance, oven, specific gravity meter, test sieve, splitting test fixture, freezing equipment, concrete dynamic modulus tester, concrete abrasion tester, anodic polarimeter, acidity meter, spiral micrometer

6. Inorganic binder stabilized materials: press machine, direct reading calcium analyzer, analytical balance, titration equipment, negative pressure sieve analyzer, high temperature furnace, electronic balance, oven, air permeability specific surface area meter

7. Asphalt: penetration tester, low temperature ductility tester, softening point tester, flash point tester, wax content tester, electric furnace, dynamic viscometer, kinematic viscometer, film oven, stopwatch, electronic balance, oven, constant temperature water bath, rotating film oven, electrode plate, Engla viscometer, road standard viscometer, standard sieve

8. Asphalt mixture: Asphalt mixture mixer, Marshall automatic compaction instrument, immersion balance, oven, Marshall stability meter, constant temperature water tank, asphalt extraction instrument, wheel rolling forming machine, rutting test machine, pavement material strength tester, low-temperature test chamber, high theoretical density tester, leakage test device, low-temperature bending and tensile test device

9. Reinforcement: Universal material testing machine, vernier caliper

10. Prestressed steel strand: large stroke universal testing machine, relaxation testing machine, extensometer

11. Geosynthetics: Material testing machine, various fixtures, thickness tester, permeability coefficient tester

12. Road engineering: ring cutter, sand filling cylinder, coring machine, automatic deflection testing equipment, automatic flatness testing equipment, automatic rutting testing equipment, automatic friction coefficient testing equipment, road seepage meter, bearing plate, automatic depth testing instrument for road structure, road detection radar

13. Structural concrete: rebound tester, coring machine, press machine, carbonation depth measuring device, steel bar position and protective layer measuring instrument, non-metallic ultrasonic testing instrument, reading microscope, steel bar corrosion measuring instrument, chloride ion content measuring instrument or chemical titration device, concrete resistivity measuring instrument

14. Foundation: bearing plate, level, inclinometer, static and dynamic penetration tester, 100 meter drilling rig (equipped with standard penetration testing equipment, mud pump, core pipe drill bit, sampler, etc.), press machine

15. Pile foundation: non-metallic ultrasonic testing instrument, low strain gauge, bearing capacity testing device, high strain gauge

16. Bridge and tunnel structures and components: static strain wax mining equipment, dynamic strain wax mining and analysis equipment, total station, deflection testing equipment, level, accelerometer or vibration pick up, tunnel section meter

17. Anchorage: Anchorage testing system, Rockwell hardness tester, fatigue testing machine

18. Rubber bearings: ≥ 5000kN press, shear lateral loading system, aging chamber, vernier caliper

19. Highway alignment and geometric dimensions: total station (or theodolite, rangefinder), level, steel ruler

20. Transportation Engineering: Geometric measuring tools (blades), reflective marking retroreflection coefficient tester, reflective marking retroreflection coefficient tester, marking coating thickness testing device, pendulum friction coefficient tester, protruding road sign luminous intensity coefficient tester, color difference meter (surface color), magnetic coating thickness gauge, ultrasonic thickness gauge, total station (or rangefinder plus theodolite), analytical balance, electronic balance, sand filling cylinder, 1.0 level electronic universal material testing machine (range not less than 200kN) 0.5 level electronic universal material testing machine, raised road sign luminous intensity coefficient tester, reflective film adhesion performance measuring device, glass bead sieve, paint film abrasion tester, constant temperature and humidity environment test chamber (uniformity not exceeding ± 1 ℃), air flow salt spray corrosion test chamber, raised road sign impact resistance test device or drop ball impact test machine, eddy current coating thickness gauge, plastic communication pipe inner wall friction coefficient tester, microcomputer controlled pipe pressure burst test machine, drop hammer impact test machine, bending radius test device

Transportation Engineering Special Project

1. General projects

Step in environmental test chamber (not less than 12m3), small high and low temperature humid and hot environmental test chamber, electric heating constant temperature drying chamber, constant temperature and humidity environmental test chamber (uniformity not exceeding ± 1 ℃), electromagnetic vibration test bench (not less than 3t thrust), air flow salt spray corrosion test chamber, chemical test vessel, digital multimeter, clamp ammeter, grounding resistance meter, video signal generator, sight gauge, low-speed data tester (50bit/s~10M), communication performance comprehensive analyzer (rate not less than 2.5G) Megohmmeter, voltage resistance tester, sealed dust-proof test box, spray forest test device, light intensity meter, illuminance meter, brightness meter (non-contact type), color difference meter, darkroom, standard light source, environmental stress cracking test device, heat-resistant stress cracking test device, Shore hardness tester, Babbitt hardness tester, 0.5 level electronic universal material testing machine, 1.0 level electronic universal material testing machine (range not less than 200kN), coating adhesion determination hammer, analytical balance, frame balance, electronic balance, vernier caliper, plate thickness micrometer, magnetic coating thickness gauge, ultrasonic thickness gauge, scraper, geometric measuring tool (blade), bending radius testing device, paint film impact resistance tester, impact resistance test Machine, cyclic salt spray corrosion test chamber, xenon arc lamp aging chamber (6500W) Water cooling, UV accelerated climate aging testing machine, standard reverse reflection testing system (30.48m), Vicat softening point tester, thermal deformation temperature tester, oxygen index tester, melt flow rate tester, glossiness tester, laser particle size analyzer, infrared spectroscopy analyzer, metallographic analyzer, spectral direct reading analyzer

2. Traffic safety equipment

Sand filling tube, load cell, reflective mark anti reflection coefficient tester, reflective marking anti reflection coefficient tester, raised road sign luminous intensity coefficient tester, contour mark luminous intensity coefficient tester (or standard anti reflection testing system), sealing resistance measuring device, reflective film attached performance measuring device, reflective film impact resistance testing device, raised road sign impact resistance testing device or falling ball impact testing machine, glass bead screening device, paint film abrasion tester, marking coating thickness testing device, pendulum friction coefficient tester, magnifying glass (not less than 100 times) with standard liquid, non stick tire time measuring device, flowability measuring cup, eddy current coating thickness gauge

3. Mechanical and Electrical Engineering

Speed radar, anemometer, CO tester, smoke sensor, optical time domain reflectometer, light source (including laser and LED), optical power meter, variable optical attenuator, time-based rubidium clock, network performance analyzer, network protocol analyzer, digital storage oscilloscope

(not less than 500MHz), network cable certification tester, cable fault comprehensive tester, clutter meter, power harmonic meter, phase meter, voice cable crosstalk tester, universal signal generator, sound level meter, local telephone analog caller, high-voltage testing system, EMC testing system, field strength meter, power meter, spectrum analyzer, PCM voice transmission analyzer, electronic temperature and humidity meter

Bridge and Tunnel Special Project

1、 Bridge

1. Structural concrete: rebound tester, coring machine, press machine, carbonation depth measuring device, steel bar position and protective layer measuring device, non-metallic ultrasonic detector, reading microscope, steel bar corrosion measuring device, concrete resistivity measuring device, chloride ion content measuring device or chemical titration device

2. Bridge structures and components: static strain wax collection equipment, dynamic strain wax collection and analysis equipment, total station, deflection testing equipment, level, vibration sensor, temperature measurement device

3. Foundation: bearing plate, level, inclinometer, static and dynamic penetration tester, 100 meter drilling rig (equipped with standard penetration testing equipment, mud pump, core pipe drill bit, sampler, etc.), press machine

4. Pile foundation: non-metallic ultrasonic testing instrument, low strain gauge, bearing capacity testing device, high strain gauge

5. Construction monitoring and control: static strain wax collection equipment, dynamic strain wax collection and analysis equipment, total station, deflection testing equipment, level, vibration sensor, temperature measurement device

6. Structural safety monitoring during operation: static strain wax collection equipment, dynamic strain wax collection and analysis equipment, total station, deflection testing equipment, level, vibration sensor, cable tension meter, temperature measurement device, GPS measurement system

7. Reinforcement: Universal material testing machine, vernier caliper

8. Prestressed steel strand: large stroke universal testing machine, relaxation testing machine, extensometer

9. Anchors: Anchor testing system, Rockwell hardness tester, fatigue testing machine

10. Rubber bearings: ≥ 5000kN press, shear lateral loading system, aging chamber, vernier caliper

11. Ball shaped support: ≥ 5000kN press, shear lateral loading system, vernier caliper, thickness gauge

12. Basin type support: ≥ 5000kN press, vernier caliper, thickness gauge

13. Expansion joint: steel ruler, vernier caliper, thickness gauge

14. Bellows: steel ruler, vernier caliper

15. Linear and geometric dimensions: total station (or theodolite, rangefinder), level, steel ruler

16. Cable force measurement: vibration testing system, anchor cable meter

17. Steel structure (including cables) protective coating testing: coating thickness gauge

18. High strength bolt torque: ultrasonic dynamometer, torque wrench

19. Non destructive testing of steel structures: metal ultrasonic testing machine, radiographic testing machine, magnetic testing machine

2、 Tunnel

1. On site construction monitoring and measurement of tunnels: automatic leveling instrument, tunnel section measurement system, frequency reading meter, anchor rod pull-out meter, deformation meter, peripheral convergence meter

2. Tunnel geological detection and advanced prediction: geological detector, TSP seismic detector

3. Tunnel structure and disease detection: geological detector, rebound instrument, carbonization depth measurement device, non-metallic ultrasonic detector, reading microscope, coring machine

4. Tunnel environment detection: multifunctional illuminance meter, precision sound level meter, digital handheld anemometer, CO gas detection alarm, visibility detector

Standard configuration of highway engineering test laboratory (full set price), list of test instruments and equipment for second-class highway engineering, standard configuration of highway engineering test laboratory, manufacturer of highway engineering test instruments, highway engineering test instruments *, manufacturer of highway engineering test instruments, highway engineering test instruments *, various highway test instruments, list of test instruments and equipment configuration for Longhui various highway laboratories, list of test instruments and equipment configuration for various highway laboratories, list of test instruments and equipment for highway asphalt laboratories, list of instrument and equipment configuration for highway geotechnical laboratories, instruments and equipment to be purchased for highway geotechnical laboratories, and instruments and equipment to be equipped for highway geotechnical laboratories.

Note: Longhui Company can customize a complete set of testing instruments and equipment for highway engineering laboratories according to the needs of different customers.

54 commonly used highway testing items, frequency, and sampling requirements in 2019:

1. Soil particle analysis, liquid limit, plasticity index, bearing ratio CBR, high dry density, Jia moisture content, natural moisture content

(1) Inspect once before starting work and once every 5000m ³ during the construction process.

(2) Natural moisture content: Check at any time before compaction and conduct a pre construction inspection. During the construction process, check every 25000m ³ and take representative samples according to T0101-2007 and T0102-2007 requirements. Woven bag, 100kg

2. Fine aggregate (for cement concrete) screening, mud content, and mud block content shall be inspected once per batch upon arrival, and the representative quantity of each inspection batch shall not exceed 400m ³ or 600t. Sampling shall be carried out according to T0301-2005. First, remove the non representative parts on the surface, and then take approximately equal samples from the top, middle, and bottom of the material pile to form a group of samples. When sampling the composite gradation of the mixed material, the material can also be directly taken from the mixing plant. Woven bag, 10kg

3. The screening, mud content, needle like particle content, and crushing value of coarse aggregate (for cement concrete) shall be inspected once per batch upon arrival, and the representative quantity of each inspection batch shall not exceed 400m ³. Woven bag, screening, etc. 30kg, crushing value material 10kg

4. Aggregate (cement stabilized or graded crushed stone) screening, mud content, needle like content, crushing value, particle composition (composite grading), plasticity index shall be inspected once per batch upon entry, and the representative quantity of each inspection batch shall not exceed 1000m ³. Woven bag, 30kg

5. The particle composition, needle like content, mud content (less than 0.075mm particle content), crushing value, density, and water absorption rate of coarse aggregate (for asphalt concrete) shall be inspected once per batch upon entry, and the representative quantity of each inspection batch shall not exceed 1000m ³. Weaving bag, screening 30kg, crushing value material 10kg, adhesion, stone acidity and alkalinity, soft stone content, if necessary. Do it when necessary

6. The particle composition, mud content (less than 0.075mm), sand equivalent, and density of fine aggregate (for asphalt concrete) shall be inspected once per batch upon arrival, and the representative quantity of each inspection batch shall not exceed 500m ³. Take representative samples according to JTGE42-2005 requirements. Woven bag, 10kg with sharp edges if necessary. Do it when necessary

7. Coarse aggregate (GB/T 14685-2011) is classified, categorized, nominal particle size, and daily production into batches of every 600 tons. If the daily production is less than 600 tons, it is also considered a batch. If the daily production exceeds 2000 tons, it is considered a batch of 1000 tons, and if it is less than 1000 tons, it is also considered a batch. If the daily production exceeds 5000 tons, it is considered as a batch of 2000 tons, and if it is less than 2000 tons, it is also considered as a batch.

8. The screening and moisture content of mineral powder shall be inspected once per batch upon arrival, and the representative quantity of each inspection batch shall not exceed 100T. The representative quantity of each inspection batch shall not exceed 500T, and representative samples shall be taken in accordance with JTJE42-2005 requirements. Cement sample bucket, 2kg apparent density, plasticity index, hydrophilicity coefficient, heating stability, if necessary. Do it when necessary

9. Cement fineness, specific surface area, water consumption for standard consistency, setting time, stability, and sand strength shall be inspected once per batch upon arrival. The representative quantity of each inspection batch shall not exceed 200T in bags and 500T in bulk. According to the T0501-2005 cement sampling method, equal amounts of samples shall be taken from more than 20 different parts as a group of samples, and a product material list shall be provided. Cement sample bucket, with a total weight of at least 6kg

10. The fineness, loss on ignition, moisture content, and sulfur trioxide of fly ash shall be inspected once per batch upon arrival, and the representative quantity of each inspection batch shall not exceed 200T. 10 bags shall be randomly selected from each batch, and no less than 1kg of sample shall be taken from each bag. After mixing evenly, the sample shall be reduced to four parts. Provide material list. Cement sample bucket with a weight greater than 3kg.

11. The ultimate strength, yield strength, elongation, and cold bending of steel raw materials shall be inspected once per batch upon arrival, and the representative quantity of each inspection batch shall not exceed 60T. Two raw materials shall be taken, and one tensile specimen and one cold bending specimen shall be cut from each. Provide material list. Take 2 tensile specimens with a length of 500mm, and 2 cold bending specimens with a length of (150+5d) mm; Grouping is tied with binding wires.

12. Under the same construction conditions, joints of the same grade, type, and specification made of the same batch of materials shall be used for the ultimate strength of steel bar mechanical connections. A batch of 500 shall be considered as an acceptance batch, and any number less than 500 shall also be considered as an acceptance batch. Three specimens shall be randomly selected for inspection. Under the same construction conditions, use the same batch of materials with the same grade, type, and specification joints, and randomly select 3 specimens for inspection.

1. Randomly cut joint specimens during the installation of steel reinforcement skeleton

2. The length L of the sleeve must be greater than or equal to 2d+10mm (d is the diameter of the steel bar) (tied with binding wire for grouping). Provide material list. Take 3 mechanical connection samples and 3 raw material samples. 50cm in length, tied with binding wire for grouping.

13. The ultimate strength of welded steel bars and flash butt welding bending shall be grouped into 300 joints of the same joint type and steel bar grade. A batch of 1500 joints of the same joint type and steel reinforcement grade shall be randomly sampled from different parts, and the flash butt welded bending specimens shall be polished on the welding surface. Grouping is tied with binding wires; Take 6 pieces for flash butt welding (including 3 pieces for cold bending, which need to be ground flat), and take 3 pieces for lap welding.

14. Ultimate strength, yield strength, elongation, relaxation test, mechanical performance test of steel strands: one inspection per batch upon arrival, and the representative quantity of each inspection batch shall not exceed 60T. Relaxation test: one inspection per specification or model from the same manufacturer. The supervisory unit supervises and witnesses the sampling process of the construction unit, and jointly sends for outsourced testing. Each batch can select 3 discs, with one disc taken for stretching and one disc taken for relaxation; Provide material list. Grouping is tied with binding wires, each with a length of 100cm when stretched and 240cm when relaxed.

15. The appearance, hardness, and anchoring coefficient of anchor plates and clamps shall be inspected once per batch upon arrival, and the representative quantity of each inspection batch shall not exceed 100 sets. The supervisory unit shall supervise and witness the sampling process of the construction unit, jointly submit outsourced tests, randomly select samples from different parts, and provide material lists. Wooden or cardboard boxes; 10% and no less than 10 sets shall be selected for appearance inspection, 5% and no less than 5 sets for hardness testing, and 3 sets for static load testing.

16. The appearance tensile yield force, yield elongation, tensile force at 2% elongation, and tensile force at 5% elongation of the geogrid shall be inspected once per batch upon entry, and the representative quantity of each inspection batch shall not exceed 200 rolls. The supervisory unit shall supervise and witness the sampling process of the construction unit, and jointly submit the required samples for outsourced testing on the entire roll of material according to the T1101-2006 sampling method. Provide a certificate of conformity and material list. Grouping is tied with binding wires; Randomly select 5 rolls from the same batch of geogrid products, and cut 1 meter from each roll as a sample, for a total of 5 pieces.

17. The specifications, dimensions, unit area mass, wide strip tensile strength, elongation, burst strength, and permeability coefficient of geotextile shall be inspected once per batch upon entry, and the representative quantity of each inspection batch shall not exceed 5000 square meters. The supervisory unit shall supervise and witness the sampling process of the construction unit, jointly submit the outsourced test samples according to the T1101-2006 sampling method, cut the required samples on the entire roll of material, and indicate the length direction. Provide a certificate of conformity and material list. Grouping is tied with binding wire, 4 square meters.

18. The appearance, impact performance, ring stiffness, local lateral load, and oven test of plastic corrugated pipes and polyethylene double wall corrugated pipes shall be inspected once per batch upon arrival, with a representative quantity of no more than 10000m per inspection batch. The supervision unit shall supervise and witness the sampling process of the construction unit, and jointly send samples for outsourced testing site. The tensile sampling length is 100cm, 6 pieces, and the bending test sample is 60d, 3 pieces. Provide a certificate of conformity and material list. Grouping is tied with binding wires; Stretch sampling length 100cm, 6 pieces, bending test piece 60d, 3 pieces.

19. The appearance and physical and mechanical properties of expansion joints shall be inspected once per batch upon arrival, and the representative quantity of each inspection batch shall not exceed 500m. The supervision unit shall supervise and witness the sampling process of the construction unit, and jointly submit samples for outsourced testing according to the testing needs. Provide a certificate of conformity and material list.

20. The appearance, ultimate compressive strength, elastic modulus, aging, and turning angle of rubber bearings shall be inspected once per batch upon arrival, and the representative quantity of each inspection batch shall not exceed 200 pieces. The supervision unit shall supervise and witness the sampling process of the construction unit, jointly submit each batch of outsourced tests for appearance quality inspection, and then take at least 3 pieces from the qualified samples for physical and mechanical performance testing. Provide a certificate of conformity and material list. At least 3 pieces shall be subjected to physical and mechanical performance tests.

21. The appearance, ultimate compressive strength, elastic modulus, aging, and turning angle of pot type bearings shall be inspected once per batch upon arrival, and the representative quantity of each inspection batch shall not exceed 20 pieces. The supervision unit shall supervise and witness the sampling process of the construction unit, jointly submit each batch of outsourced tests for appearance quality inspection, and then take at least 3 pieces from the qualified samples for physical and mechanical properties. Provide a certificate of conformity and material list. At least 3 pieces shall be subjected to physical and mechanical performance tests. Ultrasonic testing shall be conducted once per batch upon arrival. The supervisory unit shall supervise and witness the sampling process of the construction unit, and jointly submit for outsourced testing

22. Performance inspection and homogeneity inspection of concrete admixture mixtures shall be carried out according to the production capacity and equipment conditions of the manufacturer. The products shall be numbered in batches, with each batch of admixture of the same variety with a dosage greater than 1% (including 1%) numbered as 100 tons, and each batch of admixture with a dosage less than 1% numbered as 50 tons. Admixtures with a dosage less than 50 tons may also be counted as one batch. The quantity of products from the same batch entering the site shall be considered as one inspection batch, and samples of products from different batch numbers shall be taken separately. The supervision unit shall supervise and witness the sampling process of the construction unit, and jointly submit the samples taken for outsourced testing to be representative. The samples shall be obtained by uniformly mixing three or more point samples in equal quantities. Provide a certificate of conformity and material list. Sampling from sealed containers; Take two samples, one for testing and one for sealing and retention. Each unit weighs more than 2.5 liters or 2.5kg.

23. The appearance, chromaticity performance, and photometric performance of contour markers shall be inspected once per batch upon arrival, with no more than 3000 per batch. The supervision unit shall supervise and witness the sampling process of the construction unit, and jointly submit the outsourced test for random sampling according to the requirements. Provide a certificate of conformity and material list. 5 yuan.

24. The luminous intensity coefficient and compressive load of protruding road signs shall be inspected once per batch upon arrival. The supervision unit shall supervise and witness the sampling process of the construction unit, and jointly submit the outsourced test for random sampling according to the requirements. Provide a certificate of conformity and material list. 6 of them.

25. The appearance, chromaticity performance, photometric performance, tensile load, and adhesion performance of the reflective film shall be inspected once per batch upon arrival. The supervision unit shall supervise and witness the sampling process of the construction unit, and jointly submit the outsourced test for random sampling according to the requirements. Provide a certificate of conformity and material list. 3 pieces, 20cm * 20cm

26. The appearance, geometric dimensions, and anti-corrosion coating performance of protective fences and columns shall be inspected once per batch upon entry, with no more than 10000 pieces per batch. The supervision unit shall supervise and witness the sampling process of the construction unit, and jointly submit the outsourced test for random sampling according to the requirements. Provide a certificate of conformity and material list. 3 sections, each 40cm long.

27. The overall tensile load of the spliced bolts shall be inspected once per batch upon arrival. The supervision unit shall supervise and witness the sampling process of the construction unit, and jointly submit the outsourced test for random sampling according to the requirements. Provide a certificate of conformity and material list. 8 sets, ≥ 133KN.

28. The appearance, geometric dimensions, and anti-corrosion coating performance of the isolation barrier shall be inspected once per batch upon arrival, with no more than 1000 rolls per batch. The supervision unit shall supervise and witness the sampling process of the construction unit, and jointly submit the outsourced test for random sampling according to the requirements. Provide a certificate of conformity and material list. 1 piece.

29. The appearance, density, non drying time, compressive strength, wear resistance, color performance, and heating stability of the marking paint shall be inspected once per batch upon arrival, with a maximum weight of 100 tons per batch. The supervision unit shall supervise and witness the sampling process of the construction unit, and jointly submit the outsourced test for random sampling according to requirements. Provide a certificate of conformity and material list. Sealed container sampling, 2kg.

30. Road petroleum asphalt density, penetration, penetration index, 15 ℃ ductility, softening point, aging test (residue after evaporation TFOT (or RTFOT))

1. Each batch shall be inspected once upon entry, and the representative quantity of each inspection batch shall not exceed 2000 tons.

During the construction period, once every two days. The supervision unit shall conduct a sampling of not less than 20% of the construction unit's asphalt according to the T0601-2000 asphalt sampling method. For fluid asphalt, a specified number of samples shall be taken from the upper, middle, and lower positions of the liquid surface. Solid asphalt should be sampled from barrels, bags, boxes, or bulk blocks at least 5cm below the surface and within the side of the container. Provide a certificate of conformity and material list. Take 5L of emulsified asphalt from a plastic bucket, and take at least 600ml of other asphalt from a 1L covered enamel cylinder. Solubility, flash point, 10 ℃ ductility, and wax content should be tested as necessary. Do it when necessary

31. Viscosity, residual content, solubility, penetration, 15 ℃ ductility, and room temperature storage stability of emulsified asphalt

1. Each batch shall be inspected once upon entry, and the representative quantity of each inspection batch shall not exceed 2000T.

During the construction period, once every two days. The supervision unit shall conduct sampling from no less than 20% of the on-site containers of the construction unit. The demulsification speed, adhesion with coarse aggregate, and mixing test with coarse and fine aggregate should be conducted when necessary. Do it when necessary

32. The penetration rate, penetration index, softening point, ductility, and elasticity recovery of modified asphalt shall be inspected once per train or daily upon arrival. The supervision unit shall conduct a sampling of not less than 20% of the construction unit's asphalt according to the T0601-2000 asphalt sampling method. For fluid asphalt, a specified number of samples shall be taken from the upper, middle, and lower positions of the liquid surface. Solid asphalt should be sampled from barrels, bags, boxes, or bulk blocks at least 5cm below the surface and within the side of the container. Take 5L of emulsified asphalt from a plastic bucket, and take no less than 600ml of other asphalt from a 1L covered enamel cylinder. When necessary, perform tests on viscosity, storage stability, segregation, TFOT (or RTFOT) residue kinematic viscosity at 135 ℃, flash point, solubility, toughness, and elasticity recovery at 25 ℃. Do it when necessary

33. The residual content, penetration, softening point, ductility (5 ℃), and viscosity of modified emulsified asphalt shall be inspected once per vehicle upon arrival. The storage stability is maintained every 5 days. The supervision unit shall conduct random inspections of not less than 20% solubility, storage stability, emulsion breaking speed, adhesion with coarse aggregates, and mixing tests with coarse and fine aggregates as necessary. Do it when necessary

34. Asphalt mixture mineral gradation: Each mixer shall be used twice a day, and random inspections shall be conducted as necessary. The supervision unit shall conduct at least one inspection per day, and if necessary, may conduct random inspections of the T0701-2000 asphalt mixture sampling method and components at any time. Sampling grading and asphalt dosage shall be taken as 10kg. Marshall specimens shall be no less than 4 per group. A set of 3 ruts. Asphalt dosage (oil stone ratio): Each mixer should be used twice a day, and random inspections should be conducted if necessary. The supervision unit shall inspect the porosity, stability, and flow rate at least once a day, and if necessary, at any time. Each mixer shall be inspected twice a day, and the average value of four samples shall be evaluated. The supervisory unit shall conduct random inspections at least once a day and if necessary, at any time

35. Compressive strength of cement concrete

Three specimens per group. The number of groups produced should comply with the following regulations:

Concrete of different strength grades and mix proportions should be randomly sampled at the pouring site and specimens should be prepared separately.

When pouring structures of general volume (such as foundations, piers, etc.), two sets should be prepared for each unit structure.

When pouring large volume structures continuously, 2 sets should be produced every 80-200m ³ or per work shift.

The main components of the upper structure with a length of less than 16m should be produced in one group, 16-30m in two groups, 31-50m in three groups, and over 50m in no less than five groups. At least 2 sets of small components should be produced for each batch or work shift.

At least 2 sets should be produced for each drilled pile; There shall be no less than 3 groups of piles with a length of more than 20m; When the pile diameter is large and the pouring time is long, there should be no less than 4 groups. When changing work shifts, two sets should be produced for each shift.

At least 2 sets of structures such as small bridges, culverts, retaining walls, and sound barriers should be selected for each building, location, or work shift. When the raw materials and mix proportions are the same and mixed at the same mixing station, several or multiple locations can be combined to produce two groups.

According to the construction needs, several sets of specimens with the same curing conditions as the structure should be prepared separately as the strength basis for the construction stages such as demoulding, hoisting, prestressing, and load-bearing.

36. For the compressive strength of sprayed concrete, at least one set (3 pieces) of specimens should be taken from the arch and side walls every 10 linear meters of a single tunnel with two or three lanes. For other projects, there shall be no less than one independent project for spraying 50-100m ³ of mixture or less than 50m ³ of mixture. When there is a change in materials or mix proportions, new specimens should be prepared.

37. Flexural tensile strength of cement concrete: two to four groups shall be made for each shift of expressway and first-class highway: two groups shall be taken if the daily progress is less than 500m, three groups shall be taken if the daily progress is more than 500m, and four groups shall be taken if the daily progress is more than 1000m. For other highways, 1-3 groups are produced per work shift: 1 group is selected for daily progress<500m, 2 groups are selected for daily progress ≥ 500m, and 3 groups are selected for daily progress ≥ 1000m. The average value of three specimens in each group is used as a statistical data.

38. The compressive strength of cement mortar shall be tested by the supervision unit at least 20% of the construction unit's sampling for each structure in each work shift. If necessary, different strength grades and mix proportions of mortar can be randomly tested at the pouring or mixing site.

According to the standard curing for 28 days, the specimen has a side length of 70 A 7mm cube with 3 specimens per group. The number of groups produced should comply with the following regulations:

Cement mortar of different strength grades and mix proportions should be randomly sampled and specimens should be prepared separately.

Two sets of important and main masonry structures should be prepared for each work shift.

3 general and minor masonry structures, one set can be produced per work shift.

The number of test piece groups should not be less than 3.

The 5 arch ring mortar should be simultaneously prepared and cured under the same conditions as the masonry to check the strength of each construction stage.

39. The strength of cement-based slurry shall be based on the 28 day standard curing specimen, which is a 40mm × 40mm × 160mm prism with 3 specimens per group. The number of groups produced should comply with the following regulations:

Cement slurries of different strength grades and mix proportions should be randomly sampled and specimens should be prepared separately.

Each work shift is assigned one group; If the usage exceeds 10m ³, one set should be prepared for every 10m ³.

Three pairs of pile foundation grouting should be carried out, and one set should be taken for each pile at a time.

Four pairs of prestressed pipelines should be grouted, and at least one set should be prepared each time or every 25 pipes.

5 pairs of anchor rods should be grouted, and at least 1 set should be prepared for each or every 50 rods.

40. The tensile bond strength between the waterproof layer and the concrete, as well as the number and arrangement of measuring points, shall comply with the following regulations:

When the area of a construction section is not more than 500 square meters, measure 5 points. If it exceeds 500 square meters, add 2 points for every additional 500 square meters. The length of the waterproof layer bridge deck for each continuous construction is one construction section.

Two measuring points should be randomly arranged with a spacing of no less than 5 0m.

41. Cement stabilized material: cement dosage, mixture gradation, moisture content, unconfined compressive strength, dry density, and moisture content

(1) Cement dosage: One group is randomly inspected every 2 hours at each mixing station, and can be inspected at any time if suspected (two parallel tests per group).

(2) Grading of mixture: At least 2 groups per mixing station per day, and random inspections can be conducted at any time in case of suspicion.

(3) Mixing plant moisture content: at least once every 2000m2.

(4) Unconfined compressive strength: Samples should be taken at the specified frequency on site, and specimens should be prepared according to the compaction degree predetermined by the construction site. Prepare one set of specimens every 2000 square meters or per work shift. Regardless of whether it is stable fine-grained soil, medium grained soil, or coarse-grained soil, when the multiple deviation coefficient Cv is less than 10%, there can be 6 specimens; When Cv=10% to 15%, there can be 9 specimens; When Cv>15%, there should be 13 specimens.

(5) Dry density and moisture content: Same mix ratio and material yard, once. If suspected, random inspection can be conducted at any time.

The supervision unit shall conduct random inspections of not less than 20% of the construction unit's samples. If necessary, random samples of woven bags and 100kg of mixed materials produced at the same mixing station with the same mix ratio and material yard shall be taken at the paving site

42. The thickness and integrity of the core drilling at the grassroots level shall be measured at 2 points every 200m on the dual carriageway. The supervision unit shall conduct random inspections, which shall not be less than 20% of the construction unit's. If necessary, random inspections may be conducted at any time in accordance with the requirements of JTG E60-2008 "On site Testing Regulations for Highway Roadbeds and Pavements"

43. Measure the compaction degree of the roadbed at 2 points every 200m and every two lanes of compacted layer; The supervision unit shall conduct random inspections of no less than 20% of the construction unit, and if necessary, sampling points may be selected at any time in accordance with the requirements of JTG E60-2008 "On site Testing Regulations for Highway Roadbeds and Pavements"; During the construction process of the "Technical Specification for Highway Roadbed Construction", each layer should be inspected for compaction degree with a frequency of at least 2 points per 1000m2. If it is less than 1000m2, 2 points should be inspected, and if necessary, additional inspection points can be added as needed.

44. The compaction degree of the cushion layer is 2 places per 200m and every two lanes; The supervision unit shall conduct random inspections of no less than 20% of the construction unit, and may conduct random inspections at any time if necessary, selecting measuring points in accordance with the requirements of JTG E60-2008 "On site Testing Regulations for Highway Roadbeds and Pavements"

45. The compaction degree of the subgrade and base layer is 2 points per 200 meters per two lanes; The supervision unit shall conduct random inspections of no less than 20% of the construction unit, and may conduct random inspections at any time if necessary, selecting measuring points in accordance with the requirements of JTG E60-2008 "On site Testing Regulations for Highway Roadbeds and Pavements"

46. The compaction degree of asphalt concrete surface layer shall be measured at 1 point every 200m, and the nuclear (non nuclear) density meter shall be measured at 1 point every 200m, with 5 points at each point; The supervision unit shall conduct random inspections of no less than 20% of the construction unit, and may conduct random inspections at any time if necessary, selecting measuring points in accordance with the requirements of JTG E60-2008 "On site Testing Regulations for Highway Roadbeds and Pavements"

47. The compaction degree of the back of the platform is 24 points per 50 square meters for each compacted layer. If it is less than 50 square meters, at least 4 points should be sampled by the supervision unit. The sampling rate should not be less than 20% of the construction unit. If necessary, sampling points can be selected at any time according to the requirements of JTG E60-2008 "On site Testing Regulations for Highway Roadbeds and Pavements"

48. The permeability coefficient of asphalt concrete is measured at one point every 200m on two lanes; The supervision unit shall conduct random inspections of no less than 20% of the construction unit, and may conduct random inspections at any time if necessary, selecting measuring points in accordance with the requirements of JTG E60-2008 "On site Testing Regulations for Highway Roadbeds and Pavements"

49. The anti-skid friction coefficient of asphalt concrete shall be measured at one point every 200m on two lanes, and the supervision unit shall conduct random inspections of not less than 20% of the construction unit. If necessary, random inspections may be conducted at any time in accordance with the requirements of JTG E60-2008 "On site Testing Regulations for Highway Roadbeds and Pavements"

50. The depth of the structure shall be measured at one point every 200m for two lanes, and the thickness of the surface layer shall be measured at one point every 200m for two lanes. The supervision unit shall conduct random inspections, which shall not be less than 20% of the construction unit. If necessary, random inspections may be conducted at any time in accordance with the requirements of JTG E60-2008 "On site Testing Regulations for Highway Roadbeds and Pavements"

51. The thickness of the asphalt surface layer shall be measured at one point every 200m on two lanes. The supervision unit shall conduct a sampling inspection of not less than 20% of the construction unit. If necessary, sampling inspection can be carried out at any time according to the requirements of JTG E60-2008 "On site Testing Regulations for Highway Roadbeds and Pavements".

52. The thickness of the cement concrete surface layer board shall be measured at 2 points every 200m of the two lanes. The supervision unit shall randomly inspect no less than 20% of the construction unit, and if necessary, random inspections may be conducted at any time to select measuring points in accordance with the requirements of JTG E60-2008 "On site Testing Regulations for Highway Roadbeds and Pavements".

53. For each two lane evaluation section (not exceeding 1km), there are 40 measurement and inspection points for the FWD (FWD); Automatic deflectometer or Beckman beam 80 points

54. The tunnel laser section meter mainly consists of three parts: detection host, handheld computer, and data processing software. The main technical parameters are as follows:

1. Detection radius: 1-45m.

2 detection points: automatic detection, usually 35 points/section.

Distance measurement accuracy: better than ± 1mm.

Angle measurement accuracy: better than 0 01 °.

5 azimuth range: 30 °~330 ° (the instrument probe is 0 ° vertically downwards), continuous measurement is 60 °~300 °.

6. Manual probe rotation azimuth range: 0 ° to 350 °.

7. Positioning measurement method: It has vertical downward laser centering mark and distance measurement function.

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Guidelines for Standardization Construction of Instruments and Equipment in Highway and Waterway Engineering Site Laboratories:

1、 Guiding ideology:
The construction site laboratory is an important source of basic data for engineering quality control and evaluation, and an important component of the engineering construction quality assurance system. Constructing standardized on-site laboratories and promoting standardized management of on-site laboratories will effectively improve the scientificity and accuracy of experimental and testing data.
This guide is formulated to further promote the standardization, normalization, and institutionalization of on-site testing and inspection work for highway and waterway engineering in our city, improve the comprehensive capabilities of on-site laboratories and the accuracy of testing data, fully leverage the important role of on-site laboratories in construction quality control, and consolidate the quality foundation of highway and waterway engineering construction, with the theme of better adapting and serving the rapid development of transportation construction.
2、 Based on:
1. Management Measures for Testing and Inspection of Highway and Waterway Engineering (Order No. 12 of 2005 of the Ministry of Transport);
2. Notice on the Publication of the 'Classification Standards for Highway and Waterway Engineering Testing and Inspection Institutions' and the' Classification Evaluation Procedure for Highway and Waterway Testing and Inspection Institutions' (Jiaozhi Jianfa [2008] No. 274);
3. Opinions on Further Strengthening the Management of Construction Site Laboratories for Highway and Water Transport Engineering (Department Quality Supervision Letter [2009] No. 183);
4. Notice on Issuing the Credit Evaluation Measures for Testing and Inspection of Highway and Waterway Engineering (Trial) (Jiaozhi Jianfa [2009] No. 318);
5. Notice on Strengthening the Management of Construction Site Laboratories for Highway and Waterway Engineering in Our Province (Jiaozhi Guan [2009] No. 47);
6. Opinions on Strengthening the Management of Testing and Inspection of Highway and Waterway Engineering in Our Province (Jiaozhi Guan [2010] No. 42);
7. Notice on Strengthening the Management of Construction Site Laboratories for Highway and Waterway Engineering in the Province (Jiaozhi Guan [2011] No. 17);
8. Notice of the General Office of the Ministry of Transport on Issuing the Key Points for Standardized Construction of Construction Site Laboratories (Department Quality Supervision No. 2012-200).
3、 Institutional setup:
Construction and supervision units, as well as testing institutions, should establish on-site testing laboratories that are suitable for project testing requirements according to the needs of engineering quality and safety management or contractual agreements; The construction site laboratory of the construction and supervision units within the same contract section shall not be authorized by the same parent testing agency; The parent organization that establishes a construction site laboratory must obtain the "Certificate of Level for Highway and Water Transport Engineering Testing and Inspection Institutions", and the parent testing organization should authorize the construction site laboratory within the scope of its business approved by the certificate; The construction site laboratory can only carry out testing and inspection work after registering and filing with the project quality supervision agency in accordance with regulations.
4、 Personnel allocation:
（1） Personnel qualification requirements:
1. The authorized person in charge must hold a qualification certificate for testing and inspection engineers issued by the Ministry of Transport, have more than three years of testing and inspection work experience, and be authorized by the parent testing agency before issuing the on-site laboratory testing report.
2. The testing and inspection personnel in the construction site laboratory must have a testing and inspection engineer qualification certificate issued by the Ministry of Transport or a testing and inspection officer qualification certificate issued by the Provincial Department of Transport.
3. The authorized person in charge of the construction site laboratory and the testing personnel of the construction site laboratory should be registered with the parent testing institution.
4. The type of certificate held by the testing personnel in the construction site laboratory should meet the project requirements and cover the professional scope and content involved in the project.
5. The construction site laboratory shall not employ testing and inspection personnel with poor or very poor credit as authorized responsible persons, and shall not employ testing and inspection personnel with poor credit to engage in testing and inspection work.
（2） The number of testing and inspection personnel in the construction and supervision unit's on-site laboratory should be equipped according to the contract requirements and meet the needs of engineering testing and inspection, and should be equipped according to the construction contract amount. The specific requirements are:
1. Construction unit
At least 4 people under 80 million yuan; At least 6 people between 80 million yuan and 150 million yuan; More than 150 million yuan, at least 8 people.
2. Supervision unit
According to the contract requirements, the number of testing personnel shall not be less than 4. 3. When the third-party testing and inspection agency commissioned by the construction unit sets up a construction site laboratory on site, it should reasonably allocate testing and inspection personnel according to the testing projects and engineering quantities, with a minimum of 4 personnel and at least 6 personnel with a value of over 150 million yuan.
4. The construction supervision unit's on-site laboratory may allocate an appropriate number of auxiliary personnel (test workers) according to actual needs. Experimental assistants must pass the assessment of the technical director of the parent laboratory before they can take up their positions, and assessment records must be kept.
（3） The construction site laboratory must have an organizational structure, set up job responsibilities for testing and inspection personnel, establish an organizational chart, and display it on the wall. The format of the organizational diagram is as follows:
Name of parent testing institution+construction project section name+construction site laboratory:
Mechanical room, cement room, cement concrete room, aggregate room, curing room, geotechnical room, sample retention room, chemical analysis room, asphalt room, asphalt mixture room, on-site testing room, archive room.
（4） A file for testing personnel should be established, with one file for each person. Personnel files include: personnel file cards, test qualification certificates, professional title certificates, graduation certificates, labor contracts, appointment documents, training and assessment records, annual work summaries, etc., and relevant materials such as personnel skills training and assessment are also saved. The format of the personnel file card is as follows: Personnel file card
（5） The construction site laboratory should establish and improve personnel attendance and leave application and cancellation systems, and keep attendance records.
（6） Test and inspection personnel must be uniformly labeled and put on duty.
5、 Instrument and equipment management:
（1） The instrument and equipment are managed by dedicated personnel, and instrument and equipment files are established in accordance with the quality management system documents of the parent laboratory (see Table 1 for the format of the catalog list in the equipment file volume). Periodic calibration plans are formulated, instrument and equipment are regularly calibrated, and the qualifications of the "calibration/verification" institution are confirmed. The qualification files of the "calibration/verification" institution are established, and the authorized person in charge of the construction site confirms whether the instrument parameters provided in the instrument "calibration/verification" report issued by the institution can meet the testing requirements.
Table 1: Format of Catalog List in Equipment Archive Volume
The format of the instrument and equipment record table is as follows:
（2） All instruments and equipment in the construction site laboratory are marked and managed to indicate their status. The instrument and equipment should be marked with "three color identification" (green, yellow, red) to indicate their controlled, calibrated or calibrated status, and the equipment manager should post the "three color identification" in a prominent place on the instrument and equipment.
（3） All instruments and equipment in the construction site laboratory have established instrument and equipment management cards (see Table 2 for format) and posted them in the upper right corner in front of the instruments and equipment.
Table 2: Format of Instrument and Equipment Management Card
6、 Layout of experimental site
（1） Overview
1. The site selection of construction site laboratories should fully consider factors such as safety, environmental protection, convenient transportation, and engineering quality management requirements. The surrounding areas should generally be hardened. The construction unit's on-site laboratory should be built in the project department or mixing plant, and the location of the construction unit's central laboratory should be convenient for transportation and have fixed entrances and exits. The laboratory building on the construction site can be newly constructed or rented from existing buildings. Newly built houses should choose insulation and environmentally friendly materials, and comprehensively consider the impact of climate and natural disasters. If necessary, reinforcement measures should be taken to ensure their safety during their service life. Renting a house should be safe and sturdy, and its space, area, ventilation, lighting, and insulation conditions should meet the requirements for use.
2. The construction site laboratory should set up offices, archives, and various functional rooms according to the scale and characteristics of this project. There shall be no less than 2 offices and 1 archive room. The functional rooms include mechanics room, cement room, cement concrete room, aggregate room, curing room, geotechnical room, chemical analysis room, asphalt room, asphalt mixture room (including separate extraction site), sample retention room, and on-site testing room. The functional room shall be determined according to the actual declared parameters on site and must meet the requirements of the testing task. The office and various functional rooms should be separated, the layout should be reasonable, and the placement of instruments and equipment should be scientific. The area of each room shall not be less than 20m2.
Each testing room should have a clean and independent environment without interference, and pay attention to the effects of lighting, ventilation, noise, vibration, etc.
3. The "construction site laboratory" adopts a copper plaque, and its content should match the content of the construction site laboratory seal *, with red font color. The specification is 40cm in height and 60cm in length. The plaque is hung prominently in front of the office, and the bottom line of the plaque is 160cm above the ground.
4. The indoor and outdoor hygiene of the laboratory should be clearly divided into responsibility areas and assigned to individuals, and posted on the wall.
（2） Office layout
1. The office should hang the qualification certificate of the parent testing institution, the record certificate of the construction site laboratory, the authorization letter and scope, the job responsibilities of the testing personnel, the organizational structure diagram and the main management system, etc. The dimensions of the organizational structure diagram are 110cm wide by 90cm high, and the other dimensions are 60cm wide by 90cm high, all using blue background and white letters signs, hanging on the wall 150cm above the ground (bottom line).
2. The safety helmet should be uniformly hung on a straight wooden strip near the door, with the strip 180cm above the ground. It is prohibited to place the safety helmet on the filing cabinet, tabletop, or other objects.
3. A barometer should be posted on the office wall;
4. The computer host should not be placed on the desktop.
5. The office and various functional rooms should be equipped with unified standard door signs, and responsible persons should be clearly identified.
6. The placement of office desks, filing cabinets, and other materials should be reasonable.
（3） Each functional room is equipped with
1. Unified allocation requirements for each functional room
(1) The instruments and equipment in each functional room should be arranged reasonably, neatly arranged, and easy to operate in accordance with the principles of optimizing the testing and inspection workflow, reasonable overall layout, and synchronous operation without mutual interference.
(2) Instruments and equipment should be installed and debugged strictly in accordance with the relevant requirements of the testing and inspection procedures and user manuals.
(3) The construction site laboratory should adopt independent centralized power distribution lines and set up emergency power supply to ensure the normal and continuous operation of testing and inspection work. The layout of wires and cables should comply with relevant technical standards (such as horizontal wires and cables should be laid on the top of the wall, and vertical downward layout should be used to reach the instrument) to ensure safe use.
(4) The power plugs in each functional room should be at least 100cm above the ground to prevent water ingress and electrical leakage during flushing.
(5) The operation console is set up against the wall, with cement mortar brick wall stacks, reinforced concrete prefabricated slab countertops, and marble or ceramic tile finishes. The height should be controlled between 70cm and 85cm, the width of the countertop should be between 60cm and 80cm, and the width of the cabinet under the countertop should not be less than 60cm. A cabinet door of uniform material and style should be installed under the countertop for easy storage and access in the dark, and to maintain a beautiful appearance.
(6) The operating procedures for each functional room (specific wall mounted procedures can be found in the requirements of each room) and other diagrams should be mounted on the wall, with dimensions of 90cm in height and 60cm in width, and blue background with white text. The bottom of the diagram is 60cm away from the control panel.
(7) The records of instrument use and maintenance should be hung behind the corresponding instrument, under the instrument operating procedures, at a height of about 140cm from the ground.
(8) The construction site laboratory should be equipped with adequate drainage facilities and necessary emergency water sources to ensure the normal and continuous operation of testing and inspection work. Each functional room should be equipped with upper and lower water pipes, a water tank, and the upper opening of the water tank should be the same height as the operating platform. A floor drain should be installed on the ground. Water tanks and sedimentation tanks should be installed on the floors of cement concrete rooms, stone rooms, and other rooms.
(9) Each operating room is equipped with a temporary storage area for samples, which is divided into a waiting area and a tested area. Clear signs should be posted at a distance of 60cm from the ground on the back wall;
2. Requirements for the allocation of each functional compartment 2.1 Mechanical room
(1) An air conditioner with appropriate power should be equipped.
(2) The stretching chuck and cold bending punch should be neatly arranged in order of size and clearly labeled according to the matching instruments.
(3) The testing machine should be fixed to a cement concrete base of 10cm or more with expansion screws, at a distance of 0.5m or more from the surrounding walls.
(4) Two steel shelves need to be set up, one for placing stretching clamps and cold bending punches, and one for placing steel bar samples, neatly stacked and clearly labeled.
(5) Equipped with an electric grinding machine for polishing burrs on the fracture surface of sampled steel bars. (6) Operating procedures to be posted: Testing machine operating procedures, one table of loading rates for various grades of steel bars.
2.2 Cement Room
(1) Suitable power air conditioning and humidifiers should be equipped.
(2) Cement samplers should be equipped.
(3) The sand compaction table should be fixed on an independent cement concrete base and should not be connected to the wall. It should also be checked for levelness; The base is about 400mm high, with a concrete volume of about 0.25m3 and a weight of about 600kg. In case of external vibration, a layer of natural rubber elastic pad of about 5mm is placed under the base.
(4) The cement mortar flowability tester should be fixed on a hardened independent cement concrete base with expansion screws, and should not be connected to the wall, and the level should be checked; The concrete density should be at least 2240kg/m3, with a base of 400mm × 400mm square and a height of about 690mm. If there is external vibration, a layer of natural rubber elastic pad of about 5mm should be placed under the base. The installed cement mortar flowability tester should be calibrated using flowability standard samples. After passing the inspection, it can only be used after being approved by the authorized person in charge of the construction site laboratory (with calibration records kept).
(5) Equipped with independent adhesive sand curing boxes (6 pieces per group), different types of cement adhesive sand specimens should not be cured in the same curing box. The curing boxes should be numbered for easy retrieval of specimens in a timely manner.
(6) Each cement mortar test piece should be labeled with the following information: number (* for the first test piece, 1-1, 1-2, 1-3; for the second test piece, 2-1, 2-2, 2-3), date of the test piece, cement specifications, etc.
(7) Place a wet and dry bulb thermometer and hygrometer inside the moisture curing box, and prepare the same warm water for timely addition.
(8) It is recommended to use a constant stress flexural compressive integrated testing machine.
(9) The rotation direction of the blades of the sand mixer should be consistent with the direction indicated on the instrument. (10) Before each stability test, the Lei's clamp must be inspected with a 300g weight and recorded.
(11) The boiling box should be placed in a single room to prevent steam from affecting other tests. If there is no separate storage condition, the boiling box in the cement chamber should be covered with an outer box, and a plastic pipe with a diameter greater than 8cm should be connected to the outer box to lead to the outside.
(12) The cement room should have a maintenance ledger for cement mortar specimens (see Appendix 1 for the format of the ledger) and records of temperature and humidity in the cement standard curing box.
(13) Instrument operating procedures to be posted: cement slurry mixer, cement mortar mixer, constant stress bending and compression testing machine, boiling box, cement mortar compaction table, cement standard curing box, cement mortar flowability tester, cement setting time tester, electronic balance.
2.3水泥砼室
(1) An air conditioner with appropriate power should be equipped.
(2) The press should have a protective net and printing equipment.
(3) A one meter square flat, smooth, and rust free iron plate should be prepared for the slump test. (4) There should be measures to prevent splashing around the vibration table, and it is recommended to stick ceramic tiles. (5) The micrometer in the elastic modulus tester should be separately "calibrated/calibrated".
(6) Instrument operating procedures to be posted: one sheet of loading rate table for cement concrete mixer, press machine, elastic modulus tester, and various specifications of compression specimens.
2.4 Aggregate Room
(1) An air conditioner with appropriate power should be equipped.
(2) There should be a bamboo thermometer on the oven and it should be "calibrated/checked". (3) The stopwatch needs to be "calibrated/calibrated".
(4) When conducting the hydrophilicity coefficient test of mineral powder, purchased anhydrous kerosene must be used and self heating and filtering are not allowed to avoid safety accidents. Anhydrous kerosene should be kept and used by a dedicated person.
(5) The sand equivalent test should be equipped with a fixed flushing rack, and the bottom height of the flushing cylinder should be about 1 meter higher than the operating table. The flushing solution should have a reagent label and indicate the expiration date.
(6) The shaking screen machine should be fixed on a cement concrete base of 10cm or more with expansion screws.
(7) Aggregates of different specifications should be stored separately, and material identification should be fixed accordingly. (8) The operating procedures that should be posted include shaking sieve machine, immersion balance, sand equivalent tester, and oven.
2.5 Maintenance Room
(1) The walls and roof of the standard curing room should be treated with moisture-proof and insulation, and the interior should have a suspended ceiling. A record book for the entry and exit of test specimens (see Appendix 2 for the record format) and a record book for temperature and humidity should be hung on the wall at the entrance of the standard curing room.
(2) The standard curing room is equipped with fully automatic temperature and humidity equipment and air conditioning. The air conditioning computer motherboard should be installed outdoors and properly sealed. Spray device should be used indoors. When spray device is used, it should be two humidifiers. If it is more than 30m2, it should be added to three humidifiers, one for every additional 10m2. The motherboard of the air conditioning computer should be sealed.
(3) The maintenance room should be sealed and airtight, and equipped with waterproof door curtains.
(4) Two temperature and humidity meters should be installed in the maintenance room, suspended on the diagonal walls of the room. The temperature and humidity meters should be of the dry wet bulb type. The temperature and humidity meter should be regularly filled with water and ensure that all testing personnel can accurately use the temperature and relative humidity meter to read the temperature and relative humidity.
(5) A circular sink should be installed on the ground to facilitate the discharge of indoor water to the outside. The cross-sectional size of the sink is 8cm wide by 5cm deep.
(6) The specimen curing frame should have a certain degree of rigidity (it is recommended to use 4 × 4mm angle steel), and each curing frame should be numbered.
(7) Operating procedures to be posted: Fully automatic temperature control equipment.
2.6 Geotechnical Room
(1) The compaction instrument should be fixed on a cement concrete base of 10cm or more with expansion screws.
(2) The stress ring used for unconfined strength testing should provide a regression equation and correlation coefficient (the correlation coefficient should not be less than 0.9997), which should be signed and reviewed by the authorized person in charge before being posted on the wall. The dial gauge on the stress ring must not be replaced or adjusted by oneself. Longhui Instrument
(3) There should be a bamboo thermometer on the oven and it should be "calibrated/checked".
(4) Operating procedures to be posted: Automatic compaction instrument, road strength tester, liquid plastic limit tester, oven, electric demoulder.
2.7 Chemical Analysis Room
(1) An air conditioner with appropriate power should be equipped.
(2) The analytical balance should be placed on a separate platform to avoid direct sunlight, away from heat sources and air conditioning vents, and a desiccant should be placed inside the balance.
(3) Vaseline should be applied to the cover of the dryer, and if the color of the desiccant changes, it should be replaced immediately or dehydrated.
(4) Strong alkaline reagents must be stored in polyethylene drums. (5) Chemical reagents should be clearly labeled, and a ledger for purchasing, receiving, and preparing chemical reagents, as well as a ledger for calibrating standard solutions, should be established. Reagent label format: 5cm in length and 5cm in width, with black text on a white background. If a standard solution is prepared, it needs to be calibrated eight times by two people before its concentration can be used as the standard solution.
(6) Waste reagents and detection waste liquids should be collected and treated in waste liquid tanks, and should not be dumped at will.
(7) Instrument operating procedures to be posted: analytical balance, electronic balance.
2.8 Asphalt Chamber
(1) An air conditioner with appropriate power should be equipped.
(2) The three needles used for penetration testing should be separately "calibrated/calibrated".
(3) Softening point steel balls should be stored in kerosene separated from air when not in use to prevent rust and corrosion. Longhui Instrument
(4) The operating procedures for the instruments that should be posted include: penetration tester, softening point tester, low-temperature ductility tester, and low-temperature constant temperature water bath.
2.9 Asphalt mixture room
(1) At least two ovens should be equipped.
(2) The stability and flow value of the Marshall stability meter should be separately verified/calibrated. (3) The Marshall electric compaction instrument should be fixed on a cement concrete base of more than 10cm with expansion screws.
(4) The asphalt mixture room should be separated from a separate extraction test site.
(5) Instrument operating procedures to be posted: Marshall electric compaction instrument, Marshall stability meter, maximum theoretical density meter, oven, constant temperature water bath, asphalt extractor.
2.10 On site testing room
(1) The layout is reasonable, clean and tidy, with one shelf (cabinet) set up for easy storage of instruments. (2) Establish an inventory ledger for instruments.
7、 Standard specification configuration
The construction site laboratory should be equipped with complete relevant specifications, regulations, and standards based on the project engineering content and authorized testing parameters. Common specifications, regulations, and standards include:
Serial number specification, standard name code remarks
1. Highway Geotechnical Test Code JTGE40-2007
2. Standard for Soil Test Methods GB/T50123-1999
3. Code for Testing Aggregates in Highway Engineering JTGE42-2005
4. Pebble and crushed stone for construction GB/T14685-2011
Building Sand GB/T14684-2011
Test Code for Cement and Cement Concrete in Highway Engineering JTGE30-2005
Method for testing cement fineness and sieve analysis GB/T1345-2005
8 General Portland Cement GB175-2007
Method for determination of flowability of cement mortar GB/T2419-2005
Method for Testing Water Consumption, Setting Time, and Stability of 10 Cement Standard Thicknesses GB/T1346-2011
Fly ash used in cement and concrete GB/T1596-2005
12 Design Specification for Mix Proportion of Ordinary Concrete JGJ55-2011
Design Specification for Mix Proportion of Masonry Mortar JGJ/T98-2010
14 Standard for Basic Performance Test Methods of Building Mortar JGJ/T70-2009
Standard for Test Methods of Mechanical Properties of Ordinary Concrete GB/T50081-2002
Standard GB/T50080-2002 for Testing the Performance of Ordinary Concrete Mixtures
17 Concrete Admixtures GB8076-2008
Test code for inorganic binder stabilized materials in highway engineering JTGE51-2009
Test Code for Asphalt and Asphalt Mixtures in Highway Engineering JTGE20-2011
Technical specification for mechanical connection of 20 steel bars JGJ107-2010
21 Cold rolled ribbed steel bars GB13788-2008
22 Low carbon steel hot-rolled round strip GB/T701-2008
23 Metallic materials, room temperature tensile test method GB/T228.1-2010
24 Metal materials, bending test method GB/T232-2010
25 Steel for reinforced concrete * Part: Hot rolled round steel bars GB1499.1-2008
26 Steel for reinforced concrete Part 2: Hot rolled ribbed steel bars GB1499.2-2007
Standard JGJ/T27-2001 Test Method for 27 Steel Reinforcement Welded Joints
28 Reinforcement Welding and Acceptance Specification JGJ18-2012
29 Highway Roadbed and Pavement Field Testing Regulations JTGE60-2008
Technical specification for testing compressive strength of concrete by rebound method JGJ/T23-2011
Technical Specification for Testing Concrete Strength by Core Drilling Method CECS03:2007
32 Concrete Strength Testing and Evaluation Standard GB/T50107-2010
Technical Specification for Construction of Highway Embankment JTGF10-2006
Technical Specification for Construction of 34 Highway Pavement Base JTJ034-2000
Technical Specification for Construction of 35 Highway Cement Concrete Pavement JTGF30-2003
Technical Specification for Asphalt Pavement Construction of Highway 36 JTGF40-2004
37 Highway Engineering Quality Inspection and Evaluation Standards JTGF80/1-2004
Technical Specification for Construction of Highway Bridges and Culverts JTG/TF50-2011
39 Quality Control Standards for Concrete in Water Transport Engineering JTJ269-96
40 Code for Testing Concrete in Water Transport Engineering JTJ270-98
41 Water Transport Engineering Quality Inspection Standard JTS257-2008
42 Code for Concrete Construction of Water Transport Engineering JTS202-2011
Note: The construction site laboratory should select relevant standards and specifications based on the actual work and nature of the project. If the specifications, regulations, and standards expire or become invalid, they should be replaced with valid versions in a timely manner. Longhui Instrument
8、 Institutional construction
The laboratory should establish and improve various testing and inspection systems, and post them on the wall. A blue background with white letters should be used, with a size of 60cm wide by 90cm high, and hung on the wall 150cm above the ground (bottom line). The specific system is as follows:
1. Responsibilities of the construction site laboratory;
2. Responsibility system for laboratory leaders and testing personnel; 3. Training and assessment system for testing personnel skills;
4. Instrument and equipment management system (including use, maintenance, calibration, identification, etc.);
5. Standard Material Management System;
6. Experimental and testing work system (including experimental and testing work procedures, experimental and testing record management system, report review and issuance management system);
7. Archives and data management system;
8. Experimental testing safety and environmental management system;
9. Sample management system;
10. Sampling and outsourcing testing sampling and sample delivery system; 11. System for reporting non-conforming products and analyzing testing accidents; 12. Clean governance system for construction site laboratory.
The construction site laboratory should strengthen the promotion and implementation of quality system documents and various management systems, and record them.
9、 Data management
1. The construction site laboratory should classify and file relevant information for easy management and retrieval. The format of the test and inspection report and record must be uniformly in accordance with the regulations of the highway industry in Jiangsu Province, and comply with the requirements of the "Guidelines for the Compilation of Highway Test and Inspection Data Reports" (JT/T828-2012).
2. The test and inspection report is classified and numbered in the form of serial numbers on a monthly or yearly basis.
3. Test personnel should fill in the original test records in a timely manner according to regulations. The original records should be uniformly filled in with a black pen, ensuring standardized filling and clear handwriting. The original data was recorded at that time and cannot be filled in collectively.
4. The construction site laboratory should establish records for raw material entry and testing/inspection, standard testing, chemical reagent preparation, unqualified testing, outsourced testing, samples and retained samples (see attached table for the format of the records); Ledger management should have clear division of labor and individual responsibilities; The ledger should have a unified format, and the filling and statistics should be timely and standardized.
5. After the unqualified test report, it should be accompanied by instructions or rectification reports for the handling of unqualified raw materials, structures, etc., and necessary audiovisual materials.
6. The construction site laboratory should pay attention to collecting quality inspection pictures and image data of concealed works and key parts, and timely organize and archive them.
7. The construction site laboratory should handle the receipt, registration, and circulation of documents in accordance with relevant requirements.
8. Backup and save electronic documents of materials on a monthly basis.
10、 Sample management
1. Samples entering the construction site laboratory should first fill out the sample ledger (see Appendix 8). 2. Materials and samples should be labeled with * * symbols, with white background and black letters measuring 6cm in length and 6cm in width. Samples in barrels and bottles should be directly pasted on the front, while samples in bags should be directly pasted on hard boards of the same size and then tied to the bag mouth with thin wire, or placed in transparent plastic clips and directly clamped on the bag.
3. The samples that need to be retained should be sealed. Sample retention records and sample processing records are required (see Appendix 9 for format). The seal content should include: sample name, sample specifications, sample number, retention time, retention period, and retention personnel.
4. Cement samples should be stored in food bags sealed with cement before being placed in a sealable sample cylinder, and sealed with a seal.
5. The identification of concrete specimens shall be engraved on the surface of the specimens with iron wire or steel nails after the final plastering, and the content shall include the name of the structure (which can be a letter code), strength grade, component location, and production date.
11、 Requirements for declaration parameters and instrument configuration for different types of construction site laboratories
Highway engineering project type number, test project (functional room), parameters, instruments and equipment
Independent Bridge
1. Cement (cement chamber) setting time, stability, sand strength, standard consistency water consumption, density, sand flowability
Electronic balance, cement slurry mixer, standard Vicat apparatus, boiling box (including drainage steam device), Rockwell clamp tester, Rockwell clamp, mortar mixer, mortar compaction table, standard constant temperature and humidity curing box, several curing boxes for mortar specimens, several sets of mortar test molds, constant stress compression and anti bending integrated machine, setting time tester, Li's bottle, cement mortar flowability tester (to be verified with mortar flowability standard samples)
2 aggregate (aggregate room) particle size distribution, needle like particle content, crushing value, density, moisture content, mud block content, mud content standard sieve (sand, stone sieve), shaking screen machine, oven, electronic balance, needle like gauge, vernier caliper, crushing value tester, press machine, capacity cylinder
3. Cement concrete, mortar (cement concrete chamber)
Compressive strength, slump, mortar consistency, compressive modulus of elasticity, air content, concrete setting time, mix design standard curing room, standard vibration table, slump cone, cement mortar consistency meter, corresponding test mold sets, press machine (must have printing function, can unload to 11.25kN when measuring compressive modulus of elasticity, and can observe unloading rate), cement concrete mixer, cement mortar mixer, micrometer, stopwatch, air content meter, concrete penetration resistance meter, concrete modulus of elasticity tester
4 steel bars (including joints) (mechanics room)
Tensile strength, yield strength, elongation, cold bending
Material testing machine (with printing function and protective net), bending device, vernier caliper, gauge marking machine, 5 structural concrete (on-site testing room)
Strength, carbonation depth of concrete, position of steel bars, and thickness of protective layer
Rebound tester, calibration steel anvil, carbonization depth measuring instrument, steel bar position and protective layer measuring instrument
Note: If the section includes wiring, in addition to declaring items 1-5 above, it is also necessary to supplement the declaration of corresponding roadbed and pavement items.
Engineering Type Number Test Project (Function Room) Parameters Instruments and Equipment
Roadbed (including small bridges and culverts)
1. Soil and inorganic stabilized materials (geotechnical laboratory)
Boundary moisture content, maximum dry density, * moisture content, unconfined compressive strength
Electronic balance, liquid plastic limit tester, oven, geotechnical sieve, rubber plate, wooden stick, soil cup, soil adjusting knife, automatic compaction instrument, equipment without side limit parts, road material strength tester, electric demoulder, standard curing room, several sets of side limit test molds
Aggregate (aggregate room) particle size distribution, needle shaped particle content, crushing value, moisture content, mud content, density, mud block content
Standard sieve (sand, stone sieve), shaker, oven, electronic balance, needle gauge, vernier caliper, crushing value tester (including volumetric cylinder and metal rod), press machine, volumetric cylinder
3. Cement concrete, mortar (cement concrete chamber)
Compressive strength, slump, mortar consistency, compressive modulus of elasticity, mix design
Standard curing room, standard vibration table, several sets of corresponding test molds, press machine (must have printing function, can unload to 11.25kN when measuring compressive elastic modulus, and can observe unloading rate), cement mortar consistency meter, cement concrete mixer, cement mortar mixer, micrometer, concrete elastic modulus tester, stopwatch 4 chemical analysis (chemical analysis room) cement or lime dosage, lime effective calcium and magnesium content
Titration equipment, electronic balance, oven, analytical balance, weighing bottle, dryer, electric furnace, glassware, chemical reagents
5. Thickness, compaction degree, flatness, geometric dimensions, sand filling cylinder, electronic weighing scale, oven, electronic balance, 3m ruler, feeler gauge (resolution less than or equal to 0.2mm), steel ruler, total station (or theodolite, rangefinder), level, and related auxiliary tools for roadbed and pavement (on-site inspection room)
6 Structural Concrete
(On site testing room) Strength, carbonation depth of concrete, position of steel bars, and thickness of protective layer
Rebound tester, calibration steel anvil, carbonization depth measuring instrument, steel bar position and protective layer measuring instrument
Engineering Type Number Test Project (Function Room) Parameters Instruments and Equipment
Road surface (base layer made of water stable crushed stone)
1. Soil and inorganic binder stabilized materials (geotechnical laboratory)
Boundary moisture content, maximum dry density, * moisture content, unconfined compressive strength
Electronic balance, liquid plastic limit tester, oven, geotechnical sieve, rubber plate, wooden stick, soil cup, soil adjusting knife, automatic compaction instrument, equipment without side limit parts, pavement material strength tester, electric demoulder, standard curing room, several sets of side limit test molds
2 Cement (Cement Room)
Setting time, stability, sand strength, water consumption for standard consistency, sand flowability
Electronic balance, cement slurry mixer, standard Vicat apparatus, boiling box (including drainage steam device), Rockwell clamp tester, Rockwell clamp, mortar mixer, mortar compaction table, standard constant temperature and humidity curing box, several curing boxes for mortar specimens, several sets of mortar test molds, electric bending test machine, constant stress press machine (recommended to use compression and bending integrated machine), setting time tester, cement mortar flowability tester (to be verified with mortar flowability standard sample)
3 Aggregates (Aggregate Room)
Particle size distribution, needle like particle content, crushing value, moisture content, sand equivalent, mud content, density, water absorption, mud block content, standard sieve for mineral powder hydrophilicity coefficient (sand, stone sieve), shaking screen machine, oven, electronic balance (at least one sensitivity of 0.1g, 0.01g each), press machine, vernier caliper, crushing value tester (including calibration capacity cylinder, metal rod), sand equivalent meter, immersion balance (including one set of hanging basket, etc.), Li's specific gravity bottle, mortar (rubber head pestle), 50ml measuring cylinder (should be customized, with scale below 5ml), corresponding reagents, glassware, saturated surface dry test mold (including tamping rod), Constant temperature water bath (± 0.1 ℃), hair dryer, stopwatch
4 Chemical Analysis (Chemical Analysis Room)
Cement or lime dosage, effective calcium and magnesium content titration equipment for lime, electronic balance, oven, analytical balance, weighing bottle, dryer, electric furnace, glassware, chemical reagents
5 Asphalt (Asphalt Chamber) Penetration, Ductility, Softening Point, Density
Automatic needle penetration tester, oven, low-temperature constant temperature water bath (0.1 ℃), low-temperature ductility tester (± 0.1 ℃), softening point tester, asphalt density bottle, 0.6mm square hole sieve, electric furnace, asbestos pad, thermometer (0.1 ℃), dryer
6 Asphalt mixture (asphalt mixing room) Marshall stability, flow value, porosity, mineral aggregate porosity, asphalt dosage, mineral aggregate gradation, maximum theoretical density
Marshall automatic compaction instrument, Marshall stability meter, oven (at least 2 units), constant temperature water bath, demoulder, asphalt extractor and centrifuge, electronic balance, standard sieve, shaking screen machine, standard overflow water bath (25 ℃± 0.5 ℃), vernier caliper, thermometer, stopwatch, maximum theoretical density tester
7. Thickness, compaction degree, flatness, construction depth, friction coefficient, permeability coefficient, geometric dimensions of roadbed and pavement (on-site inspection room)
Sand filling cylinder, electronic balance, coring machine, flatness testing equipment, friction coefficient testing equipment, construction depth tester, steel ruler, road seepage meter, total station (or theodolite, rangefinder), level gauge
Engineering type, serial number, test project (functional room), parameters, instruments, equipment, road surface (base layer made of crushed stone)
1. Soil and inorganic binder stabilized materials (geotechnical laboratory)
Boundary moisture content, maximum dry density, * moisture content, unconfined compressive strength
Electronic balance, liquid plastic limit tester, oven, geotechnical sieve, rubber plate, wooden stick, soil cup, soil adjusting knife, automatic compaction instrument, equipment without side limit parts, pavement material strength tester, electric demoulder, standard curing room, several sets of side limit test molds
2 Aggregates (Aggregate Room)
Particle size distribution, needle like particle content, crushing value, moisture content, sand equivalent, mud content, density, water absorption, mud block content, standard sieve for mineral powder hydrophilicity coefficient (sand, stone sieve), shaking screen machine, oven, electronic balance (at least one sensitivity of 0.1g, 0.01g each), vernier caliper, crushing value tester (including calibration capacity cylinder, metal rod), press machine, sand equivalent meter, immersion balance (including one set of hanging basket, etc.), Li's specific gravity bottle, mortar (rubber head pestle), 50ml measuring cylinder (should be customized, with scale below 5ml), corresponding reagents, glassware, saturated surface dry test mold (including tamping rod) Constant temperature water bath (± 0.1 ℃), hair dryer, stopwatch
3 Chemical analysis (chemical analysis room) Cement or lime dosage, effective calcium and magnesium content of lime, and loss on ignition of fly ash
Titration equipment, electronic balance, oven, analytical balance, weighing bottle, dryer, electric furnace, glassware, chemical reagents, high-temperature furnace
4 Asphalt (Asphalt Chamber) Penetration, Ductility, Softening Point, Density
Automatic needle penetration tester, oven, low-temperature constant temperature water bath (0.1 ℃), low-temperature ductility tester (± 0.1 ℃), softening point tester, asphalt density bottle, 0.6mm square hole sieve, electric furnace, asbestos pad, thermometer (0.1 ℃), dryer 5
Asphalt mixture (asphalt mixing room) Marshall stability, flow value, porosity, mineral aggregate porosity, asphalt dosage, mineral aggregate gradation, maximum theoretical density
Marshall Automatic Compactor, Marshall Stability Tester, Oven (at least 2 units), Constant Temperature Water Tank, Demoulder, Asphalt Extraction Instrument and Centrifuge, Electronic Balance, Standard Screen, Shake Screen Machine, Standard Overflow Water Tank (25 ℃± 0.5 ℃), Stopwatch, Ultimate Theoretical Density Tester
6 Roadbed and pavement
(On site testing room) Thickness, compaction degree, flatness, construction depth, friction coefficient, water permeability coefficient, geometric dimensions
Sand filling cylinder, electronic balance, coring machine, flatness testing equipment, friction coefficient testing equipment, construction depth tester, steel ruler, road seepage meter, total station (or theodolite, rangefinder), level gauge
Serial number: Experimental project (functional room), parameters, instruments and equipment
1 Cement (cement chamber)
Strength, stability, setting time, water consumption for standard consistency, electronic balance for flowability of cement mortar, cement slurry mixer, standard Vicat apparatus, boiling box (including drainage steam device), Rockwell clamp tester, Rockwell clamp, cement mortar mixer, compaction table, standard constant temperature and humidity curing box, several curing boxes for cement mortar specimens, several sets of cement mortar test molds, electric flexural testing machine, constant stress press (recommended to use a constant stress compression and flexural integrated machine), setting time tester, cement mortar flowability tester (must be checked with a standard sample of cement mortar flowability)
2 Coarse and Fine Aggregates (Aggregate Room)
Particle size distribution, mud content, mud block content, table
Observation density, bulk density, needle like content (coarse), crushing index (coarse), chloride ion content (fine)
Complete set of sand sieve, complete set of stone sieve, shaking sieve machine, press machine, scale, electronic balance, oven, needle gauge, crushing index value measuring instrument, immersion balance, capacity cylinder, analytical balance, titration equipment (silver electrode, saturated calomel electrode, potentiometer 2mV, high temperature furnace) (1), glassware, chemical reagents
3 Mortar (Cement Concrete Chamber)
Consistency, cube compressive strength
Mortar consistency meter, electronic balance, press machine, standard vibration table, several sets of test molds
4. Cement concrete (cement concrete chamber)
Consistency, cube compressive strength (flexural strength), standard vibration table, standard curing room, Weber viscosity meter, slump cone, press machine, platform scale, several sets of test molds, 5 soil (geotechnical room) moisture content, density, compaction test, boundary moisture content, unconfined compressive strength
Ring knife, sand filling cylinder, oven, electronic balance, platform scale, automatic compaction instrument, liquid plastic limit joint measuring instrument, pavement material strength tester, equipment without side limiting components
6 Structural Concrete
(On site testing room) Strength, carbonation depth of concrete, position of steel bars, and thickness of protective layer
Rebound tester, calibration steel anvil, carbonization depth measuring instrument, steel bar position and protective layer measuring instrument
Note: (1) (Silver electrode, saturated calomel electrode, potentiometer 2mV, high temperature furnace) This is the instrument required for chloride ion detection in GB/T14684-2011. If JTJ270 detection is used, it may not be necessary. (2) If the water transportation project includes road engineering content, corresponding road engineering inspection items should be added, relevant parameters should be set, and relevant equipment should be equipped.
Note: 1. The construction site laboratory shall set up testing projects according to the project content and quality management needs as listed in the table above;
2. The parameters and instruments marked in bold in the table are * requirements and must not be missing.
12、 Safety and environmental protection measures
1. The construction site laboratory must be equipped with effective fire extinguishers and sand boxes, which should be reasonably distributed outside each functional room. The hanging height of the fire extinguishers should be 130cm above the ground
2. The experimental office should be equipped with anti-theft facilities, and computers should be protected with passwords to prevent theft of computers and data, which can cause loss of experimental data.
3. If the laboratory building is a self built color steel plate house, reinforcement measures should be taken.
4. The laboratory should have independent power lines, and leakage protectors should be installed separately in the main switch, mechanical room, and standard maintenance room. Ovens, presses, testing machines, mixers, etc. should use circuit breakers instead of sockets. There shall be no exposed wires in the laboratory.
5. The laboratory should establish a hazardous material management system. Toxic, harmful, and flammable materials should be stored in designated areas, equipped with lockable cabinets, and implemented with a dual person dual control system; There should be records of the entry and exit of dangerous goods, reflecting information such as the quantity received and the whereabouts of residual reagents.
A ledger for the recycling of toxic waste and liquid waste should be established (see Appendix 10), and professional suppliers should recycle them and keep records of the recycling process.
6. When conducting toxic or corrosive tests on asphalt, chemicals, etc., protective equipment should be worn to strengthen the safety protection of operators. Mechanical forced ventilation facilities should be installed in the chemical room, asphalt room, and asphalt mixture room.
7. Testing machines and pressure machines should be equipped with metal protective nets, and the size of the wire should not exceed 1cm × 1cm. The protective net should ensure safety, facilitate operation, and be aesthetically pleasing.
8. The ordinary waste generated in the laboratory should be classified and stacked uniformly, and disposed of in a timely manner. 9. The laboratory area should have safety warning signs, and environmental factors such as lighting, ventilation, noise, vibration, dust, and radiation should be considered when establishing them.
13、 Requirements for temperature and humidity control in laboratory environment (I) Cement testing
1. Measurement of specific surface area of cement: The relative humidity in the laboratory should not exceed 50%. 2. Strength test of cement mortar:
(1) The temperature of the specimen forming laboratory should be maintained at 20 ℃± 2 ℃, and the relative humidity should not be lower than 50%.
(2) The temperature of the curing box or fog chamber with mold curing for the test specimen should be maintained at 20 ℃± 1 ℃, and the relative humidity should not be lower than 90%.
(3) The temperature of the water in the specimen curing pool should be within the range of 20 ℃± 1 ℃. 3. Cement standard consistency water consumption, setting time, and stability testing: (1) The laboratory temperature should be 20 ℃± 2 ℃, and the relative humidity should not be less than 50%; The temperature of cement samples, mixing water, instruments, and tools should be consistent with the laboratory temperature.
(2) The temperature of the moisture curing box is 20 ℃± 1 ℃, and the relative humidity is not less than 90%. （2） Cement concrete test
Preparation of cement concrete specimens and on-site sampling and curing of hardened cement concrete: 1. After the specimens are formed, cover the surface with a damp cloth (or other methods to maintain humidity), let them stand at room temperature of 20 ℃± 5 ℃ and relative humidity greater than 50% for one to two days and nights, then remove the mold and conduct * visual inspections and numbering. Defective specimens should be removed or manually leveled.
2. Place intact specimens in the curing room for curing, with a standard curing temperature of 20 ℃± 2 ℃ and a relative humidity of over 95%. The distance between specimens should be at least 10-20mm, and a layer of water film should be maintained on the surface of the specimens, avoiding direct rinsing with water.
（3） Unconfined compressive strength test of inorganic binder stabilized soil
After the specimen is removed from the test mold and weighed, it should be immediately placed in a sealed humidity chamber and a constant temperature room for insulation, moisture retention, and health preservation. But the medium and large specimens should be wrapped with plastic film first. When conditions permit, wax sealing can be used for moisturizing and health preservation. The duration of health preservation depends on the needs, and as a construction site control, it is usually only taken for 7 days. The temperature during the entire health preservation period should be maintained at 20 ℃± 2 ℃, with a relative humidity of over 95%.
（4） Reinforcement (including joints) test
Unless otherwise specified, the test is generally conducted within the range of 10 ℃ to 35 ℃. For tests with strict temperature requirements, the test temperature should be 23 ℃± 5 ℃.
（5） Aggregate test
The test temperature should be 20 ℃± 5 ℃ (for water transportation engineering). （6） Asphalt test
Most asphalt raw material tests have temperature requirements. In order to conduct asphalt tests under constant temperature conditions as much as possible and ensure the accuracy of test results, it is necessary to effectively control the test environment. Cold and hot air conditioning should be installed in the asphalt chamber.
（7） Chemical Analysis Room
If equipped with an analytical balance, it is necessary to install cold and hot air conditioning. 14、 Other requirements
1. The construction site laboratory should strengthen quality control and management to ensure standardized and effective testing activities, and objective and accurate testing data. It is strictly prohibited to fabricate false data, records, and reports, and it is strictly prohibited to sign test and inspection reports on behalf of others.
2. The construction site laboratory should strengthen the management of outsourced testing. Testing projects and parameters beyond the authorized scope of the parent testing agency should be outsourced, and outsourced testing should be reported to the project construction unit. The construction site laboratory should keep copies of the relevant certificates of the testing institutions that accept outsourced testing on file for future reference. The sampling and delivery process of outsourced testing should be witnessed. Engineering construction project
The construction, supervision units, and testing agencies in the same contract section shall not entrust outsourced testing to the same testing agency.
3. The parent testing agency should regularly inspect and guide the authorized construction site laboratory to ensure that the authorization work is standardized and effective. The inspection process should be recorded, and the inspection results should be implemented and feedback provided.
4. The construction site laboratory should actively strengthen the informationization construction of testing and inspection. According to the requirements of engineering construction management, under the unified deployment of the project quality supervision agency or project construction unit, an information management platform for testing and inspection should be established. The platform construction should meet the functions of remote video monitoring, automatic collection of testing data, uploading and sharing of reporting resources, and curbing data fraud. Efforts will be made to improve the management level of construction site laboratories and ensure the quality of testing and inspection work.
15、 Appendix
1. Maintenance ledger for cement mortar specimens
2. Record ledger of cement concrete specimen curing in and out of warehouse
3. Raw material entry and testing ledger
4. Standard Test Ledger
5. Chemical reagent preparation ledger
6. Unqualified test ledger
7. Outsourced Test Ledger
8. Sample ledger
9. Sample retention ledger
10. Toxic waste and liquid waste recycling ledger
For other ledger formats not listed above, please refer to the "Table for Site Testing and Inspection of Highway and Water Transport Engineering in Jiangsu Province 2007 Edition"
Appendix 1: Maintenance ledger for cement mortar specimens
Appendix 2: Record of Cement Concrete Test Piece Maintenance in and out of the Warehouse
Appendix 3: Raw Material Entry and Test Ledger
Appendix 4: Standard Test Ledger
Appendix 5: Chemical Reagent Preparation Ledger
Appendix 6: Nonconforming Test Ledger
Appendix 7: Outsourced Test Ledger
Appendix 8: Sample Ledger
Appendix 9: Sample Retention Ledger
Appendix 10: Ledger of Toxic Waste and Liquid Waste Recycling

The testing institution shall carry out automatic collection technology transformation on the following equipment, and the equipment list is detailed in Table 1:

Table 1 List of Information Technology Renovation Equipment

Xian County Longhui Highway and Railway Test Instrument Factory - After sales Service Objective:

Provide users with continuous, efficient, and fast services, and build a high-quality service brand;
Establish a service network that provides users with specialized, standardized, diversified, and productized services;
● User centered, with user satisfaction as the standard for measuring all work;

After sales service tenet:

● Provide lifelong repair and maintenance services, and be responsible for timely supply of spare parts for life;

Provide technical consultation and services;

New products are provided with free warranty for the entire machine according to the purchase and sales contract;

During the warranty period, no on-site fees, handling fees, labor costs, etc. will be charged, and all damaged parts under normal use will be replaced free of charge;

Outside the warranty period, no on-site fees, handling fees, labor fees, etc. will be charged, only the cost of replacement parts will be charged;

Longhui has an after-sales service guarantee system that covers the after-sales service network of various cities, counties, and districts in China. In case of any quality problems during product use, Longhui after-sales service only needs to be provided, followed by fault confirmation, technical guidance, on-site maintenance, and regular follow-up. Longhui's after-sales service system is completed.

Longhui Company mainly produces and suppliesHighway testing instrument series, Class A testing qualification configuration list, asphalt mixing plant testing instruments, asphalt mixing plant testing instruments, highway testing instrument equipment list, asphalt mixing plant laboratory instrument list, commodity concrete mixing plant laboratory instrument equipment, asphalt mixing plant testing instruments, concrete drilling and coring machine series, fully automatic curing room equipment series, constant temperature and humidity standard curing box series, cement concrete pressure testing machine series, universal material testing machine series, concrete single axis mixer series, cement electric bending testing machine series, electric hot air drying box series, concrete freeze-thaw testing machine series, cement testing and testing instrument equipment, concrete testing and testing instrument equipment, asphalt testing and testing instrument equipment, highway testing and testing instrument equipment, geotechnical testing and testing instrument equipment, Mortar testing and inspection equipment, non-destructive testing equipment. We can set up complete sets of instruments and equipment for first, second, and third level laboratories for our clients and friends (commercial concrete mixing plant instruments and equipment). Our products (except for vulnerable parts) are covered by a one-year warranty. If there are any quality problems within six months (except for user operated reasons), they will be replaced and repaired for life.

Longhui Company specializes in contracting:

A. Design and equipment configuration business for laboratories A, B, and C.

B. Design and equipment configuration business for P1, P2, and P3 level laboratories.

The integrity, strength, and product quality of Hebei Longhui Testing Instrument Factory have been recognized by the industry. Welcome friends from all walks of life to visit, guide and negotiate business. We will be dedicated to serving you.

Hebei Longhui Highway and Railway Test Instrument Factory mainly supplies:Asphalt mixing plant laboratory testing equipment, highway engineering testing equipment, NJCL-L type rapid detection instrument for chloride ion content in sea sand and fresh concrete [additive], floor thickness gauge, pile foundation dynamic tester, steel bar position tester, chloride ion content tester, concrete vibration table, cement slurry mixer, concrete rebound tester, non-metallic ultrasonic testing analyzer, steel bar scanner, pile foundation dynamic tester, chloride ion content tester, lateral pressure gauge, concrete thickness gauge, asphalt combustion furnace, nuclear moisture density meter, crack width gauge, crack depth gauge, steel corrosion meter, non-metallic ultrasonic testing instrument, non nuclear density humidity meter, nuclear density meter, reflective sign retroreflection coefficient tester, reflective marking retroreflection coefficient tester, protruding road sign luminous intensity measurement, concrete chloride ion density meter Content analyzer, concrete alkali content analyzer, concrete freeze-thaw testing machine, Concrete carbonation test box, concrete dynamic analyzer, concrete magnetic vibration table, concrete mixing plant test instrument, commercial concrete mixing plant test instrument, concrete and cement air content measuring instrument, cement test grinder, concrete mixer, cement chloride ion content measuring instrument, electric hydraulic demoulder, electric compaction instrument, concrete standard curing box, cement slurry mixer, cement mortar mixer, cement mortar vibration table, cement mortar flowability measuring instrument, cement pressure testing machine, concrete pressure testing machine, universal material testing machine, cement constant stress testing machine, and various asphalt experimental instruments.

Concrete and mortar testing instruments:
Concrete mixer, concrete impermeability tester, standard curing room, fully automatic control device, mortar mixer, concrete coring machine, concrete curing box, rock cutting machine, sawing machine, concrete mixture, Weber consistency meter, electric hot air drying box, concrete core sample slicing machine, mortar testing instrument, testing ruler series, concrete slump cylinder, concrete core sample grinding machine, water cement ratio tester, gas content tester, disc liquid limit tester, needle gauge tester, stone crushing value tester, mortar setting time tester, mortar consistency tester, concrete accelerated curing box, double headed grinding machine, accelerated polishing machine, Los Angeles shelf wear tester, masonry mortar strength point load tester, mortar impermeability tester, concrete pressure bleeding tester, concrete alkali aggregate testing box, lime, Brick and tile explosion steaming box, low-temperature test box, concrete shrinkage and expansion rate measuring instrument, concrete elastic modulus measuring instrument, concrete penetration resistance measuring instrument, concrete vibration table, commonly used testing instruments for concrete mixing plants, and commonly used testing fixtures for concrete mixing plants
Concrete durability testing equipment:
Chloride ion content tester, building adhesive tensile testing machine, knife edge restraint early cracking testing equipment, concrete strength pull-out tester, vacuum saturation saturation equipment, concrete resistivity tester, concrete rapid freeze-thaw testing machine, concrete shrinkage deformation tester, concrete creep tester, concrete sulfate dry wet cycle testing equipment, concrete chloride ion diffusion coefficient tester, concrete carbonation test box, chloride ion electric flux tester, dynamic kinetic analyzer, concrete alkali content rapid tester
Non destructive testing instruments for construction quality:
Non metallic ultrasonic testing instrument, steel reinforcement protection layer thickness measuring instrument, concrete crack depth measuring instrument, concrete crack width measuring instrument, steel corrosion measuring instrument, floor thickness measuring instrument, concrete strength measuring instrument, concrete thickness measuring instrument, rebound measuring instrument, bond strength measuring instrument, building leakage detection instrument, concrete crack comprehensive measuring instrument, portable building electronic thermometer, roof and wall humidity measuring instrument, concrete mortar moisture content measuring instrument, steel bar gauge, masonry in-situ press machine, anchor rod pulling instrument, anchor rod tension meter, penetration mortar strength measuring instrument, and new concrete comprehensive performance measuring instrument
Asphalt and asphalt mixture testing instruments:
Cleveland Flash Point Tester, Electric Sand Equivalent Tester, Asphalt Brittle Point Tester, Fully Automatic Asphalt Extraction Tester, Asphalt Viscometer Series, Asphalt Penetration Tester, Asphalt Softening Point Tester, Asphalt Combustion Furnace
Cement testing equipment:
Cement mortar test block electric flexural testing machine, cement standard curing box, Le Chatelier boiling box, permeability specific surface area measuring instrument, specific surface area measuring instrument, disc grinding machine, cement E-type grinding testing machine, cement testing small grinding machine, electric heating and steaming kettle, cement rapid curing box, Le Chatelier clamp measuring instrument and Le Chatelier clamp measuring instrument for cement viscosity and setting time, cement composition measuring instrument, cement ratio length meter, mixing station photometer, cement chloride ion analyzer, cement free calcium oxide measuring instrument, hydraulic electric demoulder, cement mortar mixer, cement slurry mixer, cement negative pressure sieve analyzer, cement mortar compaction table, cement mortar flowability measuring instrument
Geotechnical testing instruments:
Electric compaction tester, flat load tester, pavement material strength tester, road strength tester, CBR bearing ratio tester, soil liquid plastic limit tester, soil relative density tester, multifunctional direct reading calcium meter, geotechnical vibrating screen machine, lightweight and heavy-duty penetration tester, geotechnical sieve, sand and gravel sieve rebound modulus tester, mud three piece set, lime soil unconfined press, free expansion rate tester, surface vibration compactor, constant head soil permeameter
Highway, bridge, pile foundation testing instruments:
Pendulum Friction Coefficient Tester, Ground Bearing Capacity Field Tester, Fill Density Field Tester, Non nuclear, Nuclear Moisture Meter, Pile Foundation High and Low Strain Tester, Eight Wheel Flatness Meter, Cross hole Ultrasonic Pile Tester, Pile Foundation Static Load Tester, Road Surface Moisture Permeation Meter, Road Surface Depth Constructor, Bridge Deflection Meter, Laser Tunnel Sectional Meter
Plastic trial mold, metal trial mold:
Cement sand test mold, cement soft mixing test mold demolding tool 100 square plastic test mold, cast iron test mold 150 square plastic test mold, cast iron test mold 70.7 mortar test mold, concrete frost resistance test mold

Longhui Highway Test Instrument Sales City:

1. Beijing Municipality
In 2005, it governed 16 municipal districts and 2 counties.
Dongcheng District, Xicheng District, Chongwen District, Xuanwu District, Chaoyang District, Haidian District, Fengtai District, Fangshan District, Tongzhou District, Shunyi District, Changping District, Daxing District, Huairou District, Pinggu District, Miyun County, Yanqing County, Mentougou District, Shijingshan District
2. Tianjin City
In 2005, it governed 15 municipal districts and 3 counties.
Heping District Hedong District Hexi District Nankai District Hebei District Hongqiao District Tanggu District Hangu District Dagang District Dongli District Xiqing District Beichen District Jinnan District Wuqing District Baodi District Jinghai County Ninghe County Ji County
3. Hebei Province
In 2005, it governed 11 prefecture level cities, 36 municipal districts, 22 county-level cities, 108 counties, and 6 autonomous counties.

Xinji City Gaocheng City Jinzhou City Xinle City Luquan City Pingshan County Jingxing County Luancheng County Zhengding CountyXingtang County Lingshou County Gaoyi County Zhao County Zanhuang County Shenze County Wuji County Yuanshi County Tangshan CityZunhua City Qian'an City Qianxi County Luannan County Yutian County Tanghai County Leting County Luan County Changli CountyLulong County, Funing County, Handan City, Wu'an City, Handan County, Yongnian County, Quzhou County, Guantao County, Wei CountyCheng'an County Daming County She County Jize County Qiu County Guangping County Feixiang County Linzhang County Cixian CountyXingtai City Nangong City Shahe City Xingtai County Baixiang County Ren County Qinghe County Ningjin County Wei CountyLongyao County, Lincheng County, Guangzong County, Linxi County, Neiqiu County, Pingxiang County, Julu County, Xinhe County, Nanhe CountyBaoding Zhuozhou Dingzhou Anguo Mancheng Qingyuan Laishui Fuping XushuiDingxing County, Tang County, Gaoyang County, Rongcheng County, Laiyuan County, Wangdu County, Anxin County, Yi County, Quyang CountyLi County, Shunping County, Boye County, Xiong County, Xuanhua County, Kangbao County, Zhangbei County, Yangyuan County, Chicheng CountyGuyuan County Huai'an County Huailai County Chongli County Shangyi County Wei County Zhuolu County Wanquan County Chengde CityChengde County Xinglong County Longhua County Pingquan County Luanping County Cangzhou City Botou City Renqiu City Huanghua CityCang County, Hejian City, Qing County, Xian County, Dongguang County, Haixing County, Yanshan County, Suning County, Nanpi CountyWuqiao County Langfang City Bazhou City Sanhe City Gu'an County Yongqing County Xianghe County Dacheng County Wen'an CountyHengshui City, Jizhou City, Shenzhou City, Raoyang County, Zaoqiang County, Gucheng County, Fucheng County, Anping County, Wuyi CountyJingxian Wuqiang County Shijiazhuang City Zhangjiakou City Gaobeidian City Qinhuangdao City Dachang Hui Autonomous County Qinglong Manchu Autonomous County Fengning Manchu Autonomous County Kuancheng Manchu Autonomous County Mengcun Hui Autonomous County Weichang Manchu Mongolian Autonomous County
4. Shanxi Province
In 2005, it governed 11 prefecture level cities; 23 municipal districts, 11 county-level cities, and 85 counties.
Taiyuan City, Gujiao City, Yangqu County, Qingxu County, Loufan County, Datong City, Datong County, Tianzhen County, Lingqiu CountyYanggao County, Zuoyun County, Guangling County, Hunyuan County, Yangquan City, Pingding County, Yu County, Changzhi City, Lucheng CityChangzhi County Changzi County Pingshun County Xiangyuan County Qinyuan County Tunliu County Licheng County Wuxiang County Qin CountyHuguan County, Jincheng City, Gaoping City, Zezhou County, Lingchuan County, Yangcheng County, Qinshui County, Shuozhou City, Shanyin CountyYouyu County Ying County Huairen County Jinzhong City Jiexiu City Xiyang County Lingshi County Qi County Zuoquan CountyShouyang County, Taigu County, Heshun County, Pingyao County, Yushe County, Yuncheng City, Hejin City, Yongji City, Wenxi CountyXinjiang County Pinglu County Yuanqu County Jiang County Jishan County Ruicheng County Xia County Wanrong County Linyi CountyYuanping City, Xinzhou City, Dai County, Shenchi County, Wuzhai County, Wutai County, Pianguan County, Ningwu County, Jingle CountyFanzhi County, Hequ County, Baode County, Dingxiang County, Kelan County, Linfen City, Houma City, Huozhou City, Fenxi CountyJi County, Anze County, Daning County, Fushan County, Gu County, Xi County, Xiangfen County, Yicheng County, Yonghe CountyXiangning County Quwo County Hongdong County Pu County Lvliang City Xiaoyi City Fenyang City Wenshui County Zhongyang CountyXing County, Lin County, Fangshan County, Liulin County, Lan County, Jiaokou County, Jiaocheng County, Shilou County
5. Inner Mongolia Autonomous Region
In 2005, it governed 9 prefecture level cities and 3 leagues; 21 municipal districts, 11 county-level cities, 17 counties, 49 banners, and 3 autonomous banners.
Wuchuan County Baotou City Guyang County Wuhai City Chifeng City Ningcheng County Linxi County Aohan Banner Kailu CountyTongliao City Kulun Banner Naiman Banner Wushen Banner Hangjin Banner Genhe City Arong Banner Wuyuan County Dengkou CountyFengzhen City, Xinghe County, Zhuozi County, Shangdu County, Liangcheng County, Huade County, Duolun County, Zhenglan Banner, Xianghuang Banner, Xing'an League, Tuquan County, Tokito County, Qingshuihe County, Kalaqin Banner, Balin Left Banner, Wengniute Banner, Balin Right Banner, Zhalute Banner, Zhungeer Banner, Etuoke Banner, Dalate Banner, Manzhouli City, Yakeshi City, Zhalantun City, Hangjinhou Banner, Siziwang Banner, Abaga Banner, Taipusi Banner, Zhengxiangbai Banner, Alshan City, Zhalaite Banner, Alxa LeagueEjin BannerHohhot City, Helingeer County, Tumote Left Banner, Tumote Right Banner, Keshiketeng Banner, Huolingole CityYijinhuoluo Banner, Ordos City, Etuoke Front Banner, Hulunbuir City, Erguna City, Chenbaerhu BannerBayannur City Urad Middle Banner Urad Front Banner Urad Rear Banner Ulanqab City Xilinhot CitySunite Left Banner of Erenhot City, Sunite Right Banner of Xilingol League, Alxa Left Banner of Ulanhot CityAlxa Right BannerAlkerqin Banner, New Barag Left Banner, New Barag Right Banner, Oroqen Autonomous Banner, West Ujimqin BannerDongwuzhumuqin Banner Keerqin Left Middle Banner Keerqin Left Rear Banner Ewenki Autonomous BannerChahar Right Front Banner Chahar Right Middle Banner Chahar Right Rear Banner Keerqin Right Front BannerHorqin Right Wing Middle Banner Dalhan Maoming'an United Banner Molidawa Daur Autonomous Banner
6. Liaoning Province
In 2005, it governed 14 prefecture level cities; 56 municipal districts, 17 county-level cities, 19 counties, and 8 autonomous counties.
Shenyang Xinmin City Faku County Liaozhong County Kangping County Dalian City Zhuanghe City Changhai County Anshan CityHaicheng City Tai'an County Fushun City Fushun County Benxi City Dandong City Donggang City Fengcheng City Jinzhou CityLinghai City, Beining City, Heishan County, Yixian County, Yingkou City, Gaizhou City, Fuxin City, Zhangwu County, Liaoyang CityDengta City Liaoyang County Panjin City Panshan County Dawa County Tieling City Kaiyuan City Tieling County Changtu CountyXifeng County, Chaoyang City, Lingyuan City, Beipiao City, Chaoyang County, Jianping County, Xingcheng City, Suizhong County, Jianchang CountyDashiqiao City Wafangdian City Pulandian City Tiaobingshan City Huludao CityXiuyan Manchu Autonomous County Qingyuan Manchu Autonomous County Xinbin Manchu Autonomous County Fuxin Mongolian Autonomous CountyKuandian Manchu Autonomous County Huanren Manchu Autonomous County Benxi Manchu Autonomous County Kalaqin Left Wing Mongolian Autonomous County
7. Jilin Province
In 2005, it governed 8 prefecture level cities and 1 autonomous prefecture; 19 municipal districts, 20 county-level cities, 18 counties, and 3 autonomous counties.
Jiutai City, Yushu City, Dehui City, Nongan County, Jilin City, Shulan City, Huadian City, Jiaohe City, Changchun CityPanshi City, Yongji County, Siping City, Shuangliao City, Lishu County, Liaoyuan City, Dongliao County, Dongfeng County, Tonghua CityJi'an City Tonghua County Huinan County Liuhe County Baishan City Linjiang City Jingyu County Fusong County Jiangyuan CountySongyuan City Qian'an County Changling County Fuyu County Baicheng City Da'an City Taonan City Zhenlai County Tongyu CountyYanji City Tumen City Dunhua City Longjing City Hunchun City and Long City Antu County Wangqing CountyGongzhuling City Meihekou City Yitong Manchu Autonomous County Changbai Korean Autonomous County Yanbian Korean Autonomous PrefectureFormer Gorlos Mongolian Autonomous County
8. Heilongjiang Province
In 2005, it governed 12 prefecture level cities and 1 region; 65 municipal districts, 19 county-level cities, 45 counties, and 1 autonomous county.
Acheng City, Shangzhi City, Shuangcheng City, Wuchang City, Fangzheng County, Bin County, Yilan County, Bayan County, Tonghe CountyMulan County, Yanshou County, Nehe City, Fuyu County, Baiquan County, Gannan County, Yi'an County, Keshan County, Tailai CountyKedong County Longjiang County Hegang City Luobei County Suibin County Jixian County Baoqing County Youyi County Raohe CountyJixi City Mishan City Hulin City Jidong County Daqing City Lindian County Zhaozhou County Zhaoyuan County Mohe CountyYichun City, Tieli City, Jiayin County, Ning'an City, Hailin City, Muling City, Linkou County, Dongning County, Tongjiang CityHuachuan County, Fuyuan County, Huanan County, Tangyuan County, Boli County, Heihe City, Beian City, Xunke County, Fujin CityNenjiang County, Sunwu County, Suihua City, Anda City, Zhaodong City, Hailun City, Suiling County, Lanxi County, Mingshui CountyQinggang County, Qing'an County, Wangkui County, Huma County, Tahe CountyQitaihe City Shuangyashan City Mudanjiang City Jiamusi City Suifenhe City Harbin City Qiqihar CityDulbert Mongolian Autonomous County, Wudalianchi City
9. Shanghai Municipality
In 2005, it governed 18 municipal districts, 1 county, 103 streets, 114 towns, and 3 townships.
Huangpu District, Luwan District, Xuhui District, Changning District, Jing'an District, Putuo District, Zhabei District, Hongkou District, Yangpu DistrictBaoshan District Minhang District Jiading District Songjiang District Jinshan District Qingpu District Nanhui District Fengxian District Chongming County Pudong New Area
10. Jiangsu Province:Experimental instruments and equipment for highway engineering
In 2005, it governed 13 prefecture level cities; 54 municipal districts, 27 county-level cities, and 25 counties.
Nanjing Lishui County Gaochun County Wuxi City Jiangyin City Yixing City Xuzhou City Pizhou City Xinyi CityTongshan County, Suining County, Pei County, Feng County, Changzhou City, Jintan City, Liyang City, Suzhou City, Changshu CityTaicang City, Kunshan City, Wujiang City, Nantong City, Rugao City, Tongzhou City, Haimen City, Qidong City, Haian CountyRudong County Donghai County Guanyun County Ganyu County Guannan County Huai'an City Lianshui County Hongze County Jinhu CountyXuyi County, Yancheng City, Dongtai City, Dafeng City, Jianhu County, Xiangshui County, Funing County, Sheyang County, Binhai CountyYangzhou Gaoyou Jiangdu Yizheng Baoying Zhenjiang Danyang Yangzhong JurongTaizhou City, Taixing City, Jiangyan City, Jingjiang City, Xinghua City, Suqian City, Shuyang County, Siyang County, Sihong CountyLianyungang City Zhangjiagang City
11. Zhejiang Province
In 2005, there were 11 prefecture level cities under its jurisdiction; 32 municipal districts, 22 county-level cities, 35 counties, and 1 autonomous county.
Jiande City, Fuyang City, Lin'an City, Tonglu County, Chun'an County, Ningbo City, Yuyao City, Cixi City, Hangzhou CityFenghua City Ninghai County Xiangshan County Wenzhou City Rui'an City Yueqing City Yongjia County Dongtou County Pingyang CountyCangnan County, Wencheng County, Taishun County, Jiaxing City, Haining City, Pinghu City, Tongxiang City, Jiashan County, Haiyan CountyHuzhou City Changxing County Deqing County Anji County Shaoxing City Zhuji City Shangyu City Shengzhou City Shaoxing CountyXinchang County Jinhua City Lanxi City Yiwu City Dongyang City Yongkang City Wuyi County Pujiang County Pan'an CountyQuzhou City Jiangshan City Longyou County Changshan County Kaihua County Zhoushan City Daishan County Shengsi County Taizhou CityLinhai City Yuhuan County Tiantai County Xianju County Sanmen County Lishui City Longquan City Jinyun County Qingtian CountyYunhe County Suichang County Songyang County Qingyuan County Jingning She Autonomous County
12. Anhui Province
In 2005, it governed 17 prefecture level cities; 44 municipal districts, 5 county-level cities, and 56 counties.
Hefei Changfeng County Feidong County Feixi County Wuhu City Wuhu County Nanling County Fanchang County Bengbu CityHuaiyuan County Guzhen County Wuhe County Huainan City Fengtai County Dangtu County Huaibei City Suixi County Tongling CityZongyang County, the Taihu Lake County, Huaining County, Yuexi County, Wangjiang County, Qianshan County, Susong County, Tongcheng City, Anqing CityShe County Qimen County Yi County Chuzhou City Tianchang City Mingguang City Quanjiao County, Xiuning County, Mount Huangshan CityLai'an County Dingyuan County Fengyang County Fuyang City Jieshou City Linquan County Yingshang County Funan County Taihe CountyXiao County, Si County, Dangshan County, Lingbi County, Chaohu City, Hanshan County, Wuwei County, Lujiang County, Suzhou CityHe County, Lu'an City, Shou County, Huoshan County, Huoqiu County, Shucheng County, Jinzhai County, Bozhou City, Lixin CountyGuoyang County Mengcheng County Chizhou City Dongzhi County Shitai County Qingyang County Xuancheng City Ningguo City Guangde CountyLangxi County, Jing County, Jingde County, Jixi County, Ma'anshan City
13. Fujian Province
In 2005, it governed 9 prefecture level cities, 14 county-level cities, and 45 counties.
Fuzhou City, Fuqing City, Changle City, Minhou County, Minqing County, Yongtai County, Lianjiang County, Luoyuan County, Pingtan CountyXiamen City, Putian City, Xianyou County, Sanming City, Yong'an City, Mingxi County, Jiangle County, Datian County, Ninghua CountyJianning County, Shaxian County, Youxi County, Qingliu County, Taining County, Quanzhou City, Shishi City, Jinjiang City, Nan'an CityHuian County Yongchun County Anxi County Dehua County Jinmen County Zhangzhou City Longhai City Pinghe County Nanjing CountyZhao'an County Zhangpu County Hua'an County Dongshan County Changtai County Yunxiao County Nanping City Jianou City Shaowu CitySongxi County, Jianyang City, Guangze County, Shunchang County, Pucheng County, Zhenghe County, Longyan City, Zhangping City, Changting CountyWuping County, Shanghang County, Yongding County, Liancheng County, Ningde City, Fu'an City, Fuding City, Shouning County, Xiapu CountyZherong County Pingnan County Gutian County Zhouning County Mount Wuyi City
14. Jiangxi Province
In 2005, it governed 11 prefecture level cities; 19 municipal districts, 10 county-level cities, and 70 counties.
Nanchang Xinjian County Nanchang County Jinxian County Anyi County Leping City Fuliang County Pingxiang City Lianhua CountyShangli County, Luxi County, Jiujiang City, Ruichang City, Jiujiang County, Xingzi County, Wuning County, Pengze County, Yongxiu CountyXiushui County Hukou County De'an County Duchang County Xinyu City Fenyi County Yingtan City Guixi City Yujiang CountyGanzhou City Ruijin City Nankang City Shicheng County Anyuan County Gan County Ningdu County Xunwu County Xingguo CountyDingnan County Shangyou County Yudu County Longnan County Chongyi County Xinfeng County Quannan County Dayu County Huichang CountyJi'an City, Ji'an County, Yongfeng County, Yongxin County, Xingan County, Taihe County, Xiajiang County, Suichuan County, Anfu CountyJishui County Wan'an County Yichun City Fengcheng City Zhangshu City Gao'an City Tonggu County Jing'an County Yifeng CountyFengxin County, Wanzai County, Shanggao County, Fuzhou City, Nanfeng County, Le'an County, Jinxi County, Nancheng County, Dongxiang CountyZixi County, Yihuang County, Guangchang County, Lichuan County, Chongren County, Shangrao City, Dexing City, Shangrao County, Guangfeng CountyPoyang County Wuyuan County Qianshan County Yugan County Hengfeng County Yiyang County Yushan County Wannian CountyJinggangshan City Jingdezhen City
15. Shandong Province
In 2005, it governed 17 prefecture level cities; 49 municipal districts, 31 county-level cities, and 60 counties.
Jinan Zhangqiu Pingyin Jiyang Shanghe Qingdao Jiaonan Jiaozhou PingduLaixi City, Jimo City, Zibo City, Huantai County, Gaoqing County, Yiyuan County, Zaozhuang City, Tengzhou City, Kenli CountyGuangrao County Lijin County Yantai City Longkou City Laiyang City Laizhou City Zhaoyuan City Penglai City Qixia CityHaiyang City, Changdao County, Weifang City, Qingzhou City, Zhucheng City, Shouguang City, Anqiu City, Gaomi City, Changyi CityChangle County Linqu County Jining City Qufu City Yanzhou City Zoucheng City Yutai County Jinxiang County Jiaxiang CountyWeishan County, Wenshang County, Sishui County, Liangshan County, Tai'an City, Xintai City, Feicheng City, Ningyang County, Dongping CountyWeihai Rushan Wendeng Rongcheng Rizhao Wulian Ju Laiwu LinyiYinan County Tancheng County Yishui County Cangshan County Fei County Pingyi County Junan County Mengyin County Linshu CountyDezhou City, Leling City, Yucheng City, Ling County, Ningjin County, Qihe County, Wucheng County, Qingyun County, Pingyuan CountyXiajin County, Linyi County, Liaocheng City, Linqing City, Gaotang County, Yanggu County, Chiping County, Shen County, Dong'a CountyGuanxian Binzhou City Zouping County Zhanhua County Huimin County Boxing County Yangxin County Wudi County Heze CityJuancheng County, Dan County, Yuncheng County, Cao County, Dingtao County, Juye County, Dongming County, Chengwu County
16. Henan Province
In 2005, it governed 17 prefecture level cities; 50 municipal districts, 21 county-level cities, and 88 counties.
Zhengzhou City Gongyi City Xinzheng City Xinmi City Dengfeng City Xingyang City Zhongmu County Kaifeng City Kaifeng CountyWeishi County, Lankao County, Qi County, Tongxu County, Luoyang City, Yanshi City, Mengjin County, Ruyang County, Yichuan CountyLuoning County, Song County, Yiyang County, Xin'an County, Luanchuan County, Ruzhou City, Wugang City, Baofeng County, Ye CountyJia County, Lushan County, Anyang City, Linzhou City, Anyang County, Hua County, Neihuang County, Tangyin County, Hebi CityJun County, Qi County, Xinxiang City, Weihui City, Huixian City, Xinxiang County, Huojia County, Yuanyang County, Changyuan CountyFengqiu County Yanjin County Jiaozuo City Qinyang City Mengzhou City Xiuwu County Wen County Wuzhi County Boai CountyPuyang City, Puyang County, Nanle County, Taiqian County, Qingfeng County, Fan County, Xuchang City, Yuzhou City, Mayor Ge CityXuchang County Yanling County Xiangcheng County Luohe City Linying County Wuyang County Yima City Lingbao City Mianchi CountyLushi County, Shaanxi County, Nanyang City, Dengzhou City, Tongbai County, Fangcheng County, Xichuan County, Zhenping County, Tanghe CountyNanzhao County, Neixiang County, Xinye County, Sheqi County, Xixia County, Shangqiu City, Yongcheng City, Ningling County, Yucheng CountyMinquan County, Xiayi County, Zhecheng County, Sui County, Xinyang City, Huangchuan County, Huaibin County, Xixian County, Xinxian CountyShangcheng County, Gushi County, Luoshan County, Guangshan County, Zhoukou City, Xiangcheng City, Shangshui County, Huaiyang County, Taikang CountyLuyi County Xihua County Fugou County Shenqiu County Dancheng County Queshan County Xincai County Shangcai County Xiping CountyBiyang County Pingyu County Runan County Suiping County Zhengyang County Jiyuan CitySanmenxia City Pingdingshan City Zhumadian City
17. Hubei Province
In 2005, it governed 12 prefecture level cities and 1 autonomous prefecture; 38 municipal districts, 24 county-level cities, 37 counties, 2 autonomous counties, and 1 forest area.
Huangshi City, Daye City, Yangxin County, Shiyan City, Yun County, Zhushan County, Fang County, Yunxi County, Wuhan CityZhuxi County Jingzhou City Honghu City Shishou City Songzi City Jianli County Jiangling County Yichang CityYidu City Dangyang City Zhijiang City Zigui County Yuan'an County Xingshan County Xiangfan City Zaoyang City Yicheng CityNanzhang County, Gucheng County, Baokang County, Ezhou City, Jingmen City, Zhongxiang City, Jingshan County, Shayang County, Xiaogan CityYingcheng City Anlu City Hanchuan City Yunmeng County Dawu County Xiaochang County Huanggang City Macheng City Wuxue CityHong'an County, Luotian County, Xishui County, Qichun County, Huangmei County, Yingshan County, Tuanfeng County, Xianning City, Chibi CityJiayu County, Tongshan County, Chongyang County, Tongcheng County, Suizhou City, Guangshui City, Xiantao City, Tianmen City, Qianjiang CityEnshi City Lichuan City Jianshi County Laifeng County Badong County Hefeng County Xuanen County Xianfeng CountyChangyang Tujia Autonomous County, Wufeng Tujia Autonomous County, Shennongjia Forest District, Laohekou City, Danjiangkou City
18. Hunan Province:
In 2005, it governed 13 prefecture level cities and 1 autonomous prefecture; 34 municipal districts, 16 county-level cities, 65 counties, and 7 autonomous counties.
Changsha Liuyang City Changsha County Wangcheng County Ningxiang County Zhuzhou City Liling City Zhuzhou County Yanling CountyChaling County, You County, Xiangtan City, Xiangxiang City, Shaoshan City, Xiangtan County, Hengyang City, Leiyang City, Changning CityHengyang County Hengdong County Hengshan County Hengnan County Qidong County Shaoyang City Wugang City Shaodong County Dongkou CountyXinshao County, Suining County, Xinning County, Shaoyang County, Longhui County, Chengbu Miao Autonomous County, Yueyang City, Linxiang CityMiluo City Yueyang County Xiangyin County Pingjiang County Huarong County Changde City Jinshi City Li County Linli CountyTaoyuan County, Hanshou County, Anxiang County, Shimen County, Cili County, Sangzhi County, Yiyang City, Yuanjiang City, Taojiang CountyNanxian Anhua County Chenzhou City Zixing City Yizhang County Rucheng County Anren County Jiahe County Linwu CountyGuidong County, Yongxing County, Guiyang County, Yongzhou City, Qiyang County, Lanshan County, Ningyuan County, Xintian County, Dong'an CountyJiangyong County, Dao County, Shuangpai County, Huaihua City, Hongjiang City, Huitong County, Yuanling County, Chenxi County, Xupu CountyZhongfang County, Loudi City, Lianyuan City, Xinhua County, Shuangfeng County, Jishou City, Guzhang County, Longshan County, Yongshun CountyFenghuang County, Luxi County, Baojing County, Huayuan County, Lengshuijiang City, Zhangjiajie CityJianghua Yao Autonomous County, Zhijiang Dong Autonomous County, Xinhuang Dong Autonomous County, Tongdao Dong Autonomous CountyJingzhou Miao and Dong Autonomous County Mayang Miao Autonomous County Xiangxi Tujia and Miao Autonomous Prefecture
19. Guangdong Province
In 2005, it governed 21 prefecture level cities, 23 county-level cities, 41 counties, and 3 autonomous counties.
Guangzhou Conghua Zengcheng Shenzhen Zhuhai Shantou Nanao Shaoguan LechangNanxiong City Renhua County Shixing County Wengyuan County Xinfeng County Foshan City Jiangmen City Taishan City Kaiping CityEnping City, Heshan City, Zhanjiang City, Lianjiang City, Leizhou City, Wuchuan City, Suixi County, Xuwen County, Maoming CityGaozhou City, Huazhou City, Xinyi City, Dianbai County, Zhaoqing City, Gaoyao City, Sihui City, Guangning County, Deqing CountyFengkai County, Huaiji County, Huizhou City, Huidong County, Boluo County, Longmen County, Meizhou City, Xingning City, Meixian CountyJiaoling County, Dapu County, Fengshun County, Wuhua County, Pingyuan County, Shanwei City, Lufeng City, Haifeng County, Luhe CountyHeping County, Heyuan City, Longchuan County, Zijin County, Lianping County, Dongyuan County, Yangjiang City, Yangchun City, Yangxi CountyYangdong County Qingyuan City Yingde City Lianzhou City Fogang County Yangshan County Qingxin County Dongguan City Zhongshan CityChaozhou City, Chao'an County, Raoping County, Jieyang City, Puning City, Jiedong County, Jiexi County, Huilai County, Yunfu CityYun'an County, Luoding City, Xinxing County, Yunan County, Yunan County
Ruyuan Yao Autonomous County, Lianshan Zhuang Yao Autonomous County, Liannan Yao Autonomous County
20. Guangxi Zhuang Autonomous Region:Highway engineering testing instruments and equipment
In 2005, it governed 14 prefecture level cities; 34 municipal districts, 7 county-level cities, 56 counties, and 12 autonomous counties.
Wuming County, Long'an County, Mashan County, Shanglin County, Binyang County, Heng County, Liuzhou City, Liujiang County, Nanning CityYangshuo County, Linggui County, Lingchuan County, Quanzhou County, Pingle County, Xing'an County, Guanyang County, Lipu County, Guilin CityYuanzi County Yongfu County Wuzhou City Cenxi City Cangwu County Teng County Mengshan County Beihai City Hepu CountyDongxing City, Shangsi County, Qinzhou City, Lingshan County, Pubei County, Guigang City, Guiping City, Pingnan County, Yulin CityBeiliu City Rong County Luchuan County Bobai County Xingye County Baise City Lingyun County Pingguo County Xilin CountyLeye County Debao County Tianlin County Tianyang County Jingxi County Tiandong County Napo County Hezhou City Zhongshan CountyZhaoping County, Hechi City, Yizhou City, Tian'e County, Fengshan County, Nandan County, Donglan County, Laibin City, Heshan CityXiangzhou County Wuxuan County Xincheng County Chongzuo City Pingxiang City Ningming County Fusui County Longzhou County Daxin CountyFangchenggang City, Tiandeng County
Sanjiang Dong Autonomous County, Dahua Yao Autonomous County, Bama Yao Autonomous County, Longsheng Ethnic Autonomous CountyJinxiu Yao Autonomous County Rongshui Miao Autonomous County Longlin Ethnic Autonomous County Gongcheng Yao Autonomous CountyDu'an Yao Autonomous County, Fuchuan Yao Autonomous County, Huanjiang Maonan Autonomous County, Luocheng Mulao Autonomous County
21. Hainan Province
In 2005, it governed 2 prefecture level cities, 6 county-level cities, 4 counties, 6 autonomous counties, and 4 municipal districts.
Haikou City Qionghai City Danzhou City Wenchang City Wanning City Dongfang City Chengmai County Ding'an County Tunchang CountyWuzhishan City, Sanya City, Lingao CountyBaisha Li Autonomous County Changjiang Li Autonomous County Ledong Li Autonomous County Lingshui Li Autonomous CountyBaoting Li and Miao Autonomous County Qiongzhong Li and Miao Autonomous County
22. Chongqing City
In 2005, there were 15 municipal districts, 4 county-level cities, 17 counties, and 4 autonomous counties under its jurisdiction
Yuzhong District Jiangbei District Nan'an District Beibei District Wansheng District Shuangqiao District Yubei District Banan District Wanzhou DistrictFuling District Qianjiang District Changshou District Jiulongpo District Dadukou District Shapingba DistrictYongchuan City, Hechuan City, Jiangjin City, Nanchuan City, Qijiang County, Tongnan County, Rongchang County, Bishan County, Dazu CountyTongliang County, Liangping County, Chengkou County, Dianjiang County, Wulong County, Fengdu County, Fengjie County, Kai County, Yunyang CountyZhong County Wuxi County Wushan CountyShizhu Tujia Autonomous County Xiushan Tujia and Miao Autonomous County Youyang Tujia and Miao Autonomous Countypengshui miao and tujia autonomous county
23. Sichuan Province:Highway engineering testing and inspection instruments
In 2005, it governed 18 prefecture level cities and 3 autonomous prefectures; 43 municipal districts, 14 county-level cities, 120 counties, and 4 autonomous counties.
Chengdu Pengzhou Qionglai Chongzhou Jintang Pixian Xinjin Shuangliu Pujiang CountyDayi County, Zigong City, Rong County, Fushun County, Miyi County, Yanbian County, Luzhou City, Luxian County, Hejiang CountyXuyong County Gulin County Deyang City Guanghan City Shifang City Mianzhu City Luojiang County Zhongjiang County Mianyang CityYanting County, Jiangyou City, Santai County, Pingwu County, An County, Zitong County, Guangyuan City, Qingchuan County, Wangcang CountyJiange County Cangxi County Suining City Shehong County Pengxi County Daying County Neijiang City Zizhong County Longchang CountyWeiyuan County, Leshan City, Jiajiang County, Jingyan County, Jianwei County, Muchuan County, Nanchong City, Langzhong City, Yingshan CountyPeng'an County, Yilong County, Nanbu County, Xichong County, Meishan City, Renshou County, Pengshan County, Hongya County, Danling CountyQingshen County Yibin City Yibin County Xingwen County Nanxi County Gong County Changning County Gao County Jiang'an CountyJunlian County Pingshan County Guang'an City Huaying City Yuechi County Linshui County Wusheng County Dazhou City Wanyuan CityDaxian County, Qu County, Xuanhan County, Kaijiang County, Dazhu County, Ya'an City, Lushan County, Shimian County, Mingshan CountyTianquan County, Yingjing County, Baoxing County, Hanyuan County, Bazhong City, Nanjiang County, Pingchang County, Tongjiang County, Ziyang CityAnyue County, Jianyang City, Lezhi County, Hongyuan County, Wenchuan County, Aba County, Li County, Xiaojin County, Heishui CountyJinchuan County Songpan County Rangtang County Mao County Kangding County Danba County Luhuo County Jiulong County Ganzi CountyYajiang County Xinlong County Daofu County Baiyu County Litang County Dege County Xiangcheng County Shiqu County Daocheng CountySeda County Batang County Luding County Derong County Xichang City Meigu County Zhaojue County Jinyang County Ganluo CountyButuo County Leibo County Puge County Ningnan County Xide County Huidong County Yuexi County Huili County Yanyuan CountyDechang County Mianning CountyMarkang County Jiuzhaigou Valley Scenic and Historic Interest Area County Emeishan City Dujiangyan Irrigation Project City Panzhihua City Ruoergai CountyBeichuan Qiang Autonomous County, Muli Tibetan Autonomous County, Mabian Yi Autonomous County, Ebian Yi Autonomous CountyGanzi Tibetan Autonomous Prefecture Liangshan Yi Autonomous Prefecture Aba Tibetan and Qiang Autonomous Prefecture
24. Guizhou Province
In 2005, it governed 4 prefecture level cities, 2 regions, and 3 autonomous prefectures; 10 municipal districts, 9 county-level cities, 56 counties, 11 autonomous counties, and 2 special zones.
Guiyang City, Qingzhen City, Kaiyang County, Xiuwen County, Xifeng County, Shuicheng County, Pan County, Zunyi City, Chishui CityRenhuai City Zunyi County Suiyang County Tongzi County Xishui County Fenggang County Zheng'an County Yuqing County Meitan CountyPuding County, Anshun City, Dejiang County, Jiangkou County, Sinan County, Shiqian County, Bijie City, Qianxi County, Dafang CountyZhijin County Jinsha County Hezhang County Nayong County Xingyi City Wangmo County Xingren County Pu'an County Ceheng CountyQinglong County Zhenfeng County Anlong County Kaili City Shibing County Congjiang County Jinping County Zhenyuan County Majiang CountyTaijiang County Tianzhu County Huangping County Rongjiang County Jianhe County Sansui County Leishan County Liping County Cengong CountyDanzhai County Duyun City Fuquan City Guiding County Huishui County Luodian County Weng'an County Libo County Longli CountyPingtang County Changshun County Dushan County Liupanshui City Liuzhi Special District Wanshan Special ZoneSandu Shui Autonomous County Songtao Miao Autonomous County Yuping Dong Autonomous County Yanhe Tujia Autonomous CountyDaozhen Gelao ethnic group and Miao Autonomous County Wuchuan Gelao ethnic group and Miao Autonomous County Pingba County Zhenning Buyi and Miao Autonomous CountyZiyun Miao and Buyi Autonomous County Guanling Buyi and Miao Autonomous County Tongren City Yinjiang Tujia and Miao Autonomous CountyQiandongnan Miao and Dong Autonomous Prefecture Qianxinan Buyi and Miao Autonomous Prefecture Weining Yi, Hui and Miao Autonomous CountyQiannan Buyi and Miao Autonomous Prefecture
25. Yunnan Province
In 2005, it governed 8 prefecture level cities and 8 autonomous prefectures; 12 municipal districts, 9 county-level cities, 79 counties, and 29 autonomous counties.
Kunming Anning Fumin Songming Chenggong Jinning Yiliang Qujing XuanweiLuliang County Huize County Fuyuan County Luoping County Malong County Shizong County Zhanyi County Yuxi City Huaning CountyChengjiang County Yimen County Tonghai County Jiangchuan County Baoshan City Shidian County Changning County Longling County Tengchong CountyYongshan County, Suijiang County, Zhenxiong County, Daguan County, Yanjin County, Qiaojia County, Yiliang County, Weixin County, Zhaotong CityShuifu County, Ludian County, Lijiang City, Huaping County, Yongsheng County, Simao City, Lincang City, Zhenkang County, Fengqing CountyYunxian Yongde County * County Yanshan County Guangnan County Maguan County Funing County Xichou County Qiubei CountyMengzi County Gejiu City Kaiyuan City Mile County Honghe County Luchun County Luxi County Jianshui County Yuanyang CountyShiping County Jinghong City Menghai County Chuxiong City Yuanmou County Nanhua County Mouding County Wuding County Dayao CountyShuangbai County, Lufeng County, Yongren County, Yao'an County, Dali City, Jianchuan County, Midu County, Yunlong County, Eryuan CountyHeqing County Xiangyun County Binchuan County Yongping County Luxi City Ruili City Yingjiang County Lianghe County Longchuan CountyLushui County, Fugong County, Deqin County, Malipo County, Shangri La CountyNinglang Yi Autonomous County Hekou Yao Autonomous County Yulong Naxi Autonomous County Pu'er Hani and Yi Autonomous CountyYangbi Yi Autonomous County Xundian Hui Autonomous County Mojiang Hani Autonomous County Jiangcheng Hani and Yi Autonomous CountyEshan Yi Autonomous County Pingbian Miao Autonomous County Lancang Lahu Autonomous County Lanping Bai Pumi Autonomous CountyShilin Yi Autonomous County, Ximeng Va Autonomous County, Weixi Lisu Autonomous County, Gongshan Dulong Nu Autonomous CountyJingdong Yi Autonomous County Cangyuan Va Autonomous County Weishan Yi and Hui Autonomous County Jinggu Yi and Dai Autonomous CountyNanjian Yi Autonomous County, Xinping Yi and Dai Autonomous County, Luquan Yi and Miao Autonomous CountyMenglian Dai, Lahu, Va Autonomous County, Jinping Miao, Yao, and Dai Autonomous CountyYuanjiang Hani Yi Dai Autonomous County Zhenyuan Yi Hani Lahu Autonomous CountyShuangjiang Lahu, Wa, Bulang, Dai Autonomous County, Gengma Dai and Va Autonomous County
26. Xizang Autonomous Region
In 2005, it governed 1 prefecture level city and 6 regions; 1 municipal district, 1 county-level city, and 71 counties.
Lhasa City Linzhou County Dazi County Nimu County Dangxiong County Qushui County Nagqu County Jiali County Shenzha CountyBaqing County, Nierong County, Nima County, such as Suo County, Bango County, Anduo County, Changdu County, Mangkang CountyGongjue County, Basu County, Zuogong County, Bianba County, Luolong County, Jiangda County, Dingqing County, Chaya County, Naidong CountyQiongjie County Cuomei County Jiacha County Gongga County Luozha County Qusong County Sangri County Zhanang County Cuona CountyLongzi County Dingjie County Sakya County Jiangzi County Lazi County Dingri County Kangma County Jilong County Yadong CountyAngren County, Gangba County, Zhongba County, Saga County, Renbu County, Bailang County, Gar County, Cuoqin County, Pulan CountyGeji County, Ritu County, Zada County, Gaize County, Linzhi County, Motuo County, Lang County, Milin County, Chayu CountyBomi County, Shigatse City, Liuqi County, Langkazi County, Nielamu County, Xietongmen County, Nanmulin CountyGongbu Jiangda County, Mozhu Gongka County, Duilong Deqing County
27. Shaanxi Province:Highway engineering testing and inspection instruments and equipment
In 2005, it governed 10 prefecture level cities; 24 municipal districts, 3 county-level cities, and 80 counties.
Gaoling County, Lantian County, Hu County, Zhouzhi County, Tongchuan City, Yijun County, Baoji City, Qishan County, Xi'an CityFengxiang County, Long County, Taibai County, Linyou County, Fufeng County, Qianyang County, Mei County, Feng County, Xianyang CityLiquan County Jingyang County Yongshou County Sanyuan County Bin County Xunyi County Changwu County Qian County Wugong CountyChunhua County, Weinan City, Hancheng City, Huayin City, Pucheng County, Tongguan County, Baishui County, Chengcheng County, Huaxian CountyHeyang County, Fuping County, Dali County, Yan'an City, Ansai County, Luochuan County, Zichang County, Huangling County, Yanchuan CountyFuxian Yanchang Ganquan Yichuan Zhidan Huanglong Wuqi Hanzhong Liuba CountyZhenba County Chenggu County Nanzheng County Yang County Ningqiang County Foping County Mian County Xixiang County Lueyang CountyQingjian County, Suide County, Shenmu County, Jia County, Fugu County, Zizhou County, Jingbian County, Hengshan County, Yulin CityMizhi County, Wubao County, Dingbian County, Ankang City, Ziyang County, Langao County, Xunyang County, Zhenping County, Pingli CountyShiquan County, Ningshan County, Baihe County, Hanyin County, Shangluo City, Zhen'an County, Shanyang County, Luonan County, Shangnan CountyDanfeng County Zhashui County
28. Gansu Province
In 2005, it governed 12 prefecture level cities and 2 autonomous prefectures; 17 municipal districts, 4 county-level cities, 58 counties, and 7 autonomous counties.
Yongdeng County, Yuzhong County, Gaolan County, Jinchang City, Yongchang County, Baiyin City, Jingyuan County, Jingtai County, Lanzhou CityHuining County, Tianshui City, Wushan County, Gangu County, Qingshui County, Qin'an County, Wuwei City, Minqin County, Gulang CountyZhangye City Minle County Shandan County Linze County Gaotai County Pingliang City Lingtai County Jingning County Chongxin CountyHuating County, Jingchuan County, Zhuanglang County, Jiuquan City, Yumen City, Dunhuang City, Anxi County, Jinta County, Qingyang CityQingcheng County Zhenyuan County Heshui County Huachi County Huan County Ning County Zhengning County Dingxi City Min County
Weiyuan County, Longxi County, Tongwei County, Zhang County, Lintao County, Longnan City, Cheng County, Li County, Kang CountyWen County, Liangdang County, Hui County, Dangchang County, Xihe County, Linxia City, Linxia County, Kangle County, Yongjing CountyGuanghe County and Zhengxian Cooperation City Lintan County Zhuoni County Zhouqu County Diebu County Maqu County Luqu CountyXiahe County Jiayuguan City Dongxiang Ethnic Autonomous County Aksai Kazakh Autonomous County Subei Mongolian Autonomous CountyZhangjiachuan Hui Autonomous County Tianzhu Tibetan Autonomous County Sunan Yugur Autonomous CountyJishishan Baoshan Bao'an Dongxiang Salar Autonomous County
29. Qinghai Province
In 2005, it governed: 1 prefecture level city, 1 region, and 6 autonomous prefectures; 4 municipal districts, 2 county-level cities, 30 counties, and 7 autonomous counties.
Huangyuan County, Huangzhong County, Ping'an County, Ledu County, Haiyan County, Qilian County, Gangcha County, Tongren County, Xining CityZeku County Jianzha County Gonghe County Tongde County Guide County Xinghai County Guinan County Maqin County Banma CountyGande County, Dari County, Jiuzhi County, Maduo County, Yushu County, Zaduo County, Chengduo County, Zhiduo County, Nangqian CountyUlan County, Tianjun County, Dulan County, Qumalai County, Delingha City, Golmud CityMengyuan Hui Autonomous County Datong Hui and Tu Autonomous County Henan Mongolian Autonomous County Hualong Hui Autonomous CountyHuzhu Tu Autonomous County Minhe Hui Tu Autonomous County Xunhua Salar Autonomous County
30. Ningxia Hui Autonomous Region
In 2005, it governed 5 prefecture level cities, 2 county-level cities, 11 counties, and 8 municipal districts.
Yinchuan City, Lingwu City, Yongning County, Helan County, Pingluo County, Wuzhong City, Tongxin County, Yanchi County, Guyuan CityXiji County, Longde County, Jingyuan County, Pengyang County, Zhongwei City, Zhongning County, Haiyuan CountyShizuishan City Qingtongxia City
31. Xinjiang Uygur Autonomous Region
In 2005, it governed 2 prefecture level cities, 7 regions, and 5 autonomous prefectures; 11 municipal districts, 20 county-level cities, 62 counties, and 6 autonomous counties.
Shihezi City, Karamay City, Alar City, Tumshuk City, Wujiaqu City, Beitun City, Hami City, Turpan City, Aksu City, Kashi City, Hotan City, Yining City, Tacheng City, Altay City, Kuitun City, Bole City, Changji City, Fukang City, Korla City, Atushi City, Wusu City, Shanshan County, Hami City, Yiwu County, Hotan City, Hotan County, Luopu County, Minfeng County, Pishan County, Cele County, Yutian County, Moyu County, Wensu County, Shaya County, Baicheng County, Kuche County, Keping County, Xinhe County, Wushi County