Types of concrete rapid freeze-thaw testing machines

KDR-V3 type 3-group 10 piece rapid freeze-thaw testing machine for concrete

Execution standard:

GB/T50081-2002 "Standard Test Method for Mechanical Properties of Ordinary Concrete"

GB/T50082-2009 "Test Method for Long term Performance and Durability of Ordinary Concrete"

JGJ55-2000 "Design Specification for Mix Proportion of Ordinary Concrete"

JTJ053-4 "Test Code for Cement Concrete in Highway Engineering"

JTGE30-2005 "Test Code for Cement and Cement Concrete in Highway Engineering"

National Electric Power Industry Standard DL/T5150-2001 "Test Code for Hydraulic Concrete"

SL352-2006 Test Code for Hydraulic Concrete

JG/243-2009 "Concrete Frost Resistance Test Equipment"

JGJ/T193-2009 "Standard for Inspection and Evaluation of Concrete Durability"

ASTM/C666 "Standard Test Method for Rapid Freeze Thaw Capacity of Concrete" in the United States

Adopting the water freezing and thawing method, the frost resistance and thawing test of concrete specimens with a size of 100 * 100 * 400 that meet the appearance requirements can be conducted. Three sets of specimens (including one central specimen) can be placed at a time. During the experiment, the test piece is placed in a test rubber cylinder, which is filled with water. The rubber cylinder is then placed in a test piece box containing antifreeze, and the unit's cooling or heating of the antifreeze is used to freeze or melt the test piece in the rubber cylinder, thus completing the freeze-thaw test.

The entire operation is fully automatic and does not require human intervention. When the test is completed to the set (default of 50 times), it will automatically stop and emit a prompt sound to indicate the completion of the test. If the test needs to continue, it can accumulate the set number of times and then continue running.

Technical Specifications:

Rated voltage: AC380V/20A three-phase four wire

◆ Overall power: 3KW

Heating power: 2.7KW

◆ Cooling power: 2.7KW

Measurement accuracy: ± 0.5 ℃

Display resolution: 0.06 ℃

◆ Maximum specimen capacity: 3 sets+1 central specimen

(10 specimens in total)

◆ Temperature range: -25 ℃~25 ℃ (user adjustable)

◆ Temperature uniformity:<2 ℃ between each point

◆ Size of concrete test block: 100 * 100 * 400 mm

Rubber bucket size: 120 * 120 * 500 mm

Working size: 690 * 290 * 620 (mm)

◆ Dimensions: 1350 * 900 * 900mm

Instrument weight: approximately 200kg

Features:

1. The compressor has low power and 3P imported compression refrigeration. Whether placed indoors or outdoors, the noise is low.

2. Heating does not use heating tubes, resulting in low power. The heating tube is soaked in antifreeze for a long time, which is prone to conductivity and other phenomena, affecting the heating life.

3. All in one machine, easy to move in the laboratory.

4. Environmental protection. Low noise and energy-saving. The body is compact and does not take up much space.

Experimental parameters:

The freeze-thaw cycle period is 2.5-4 hours, and the melting time is not less than 1/4 of the freeze-thaw cycle. At the end of the freezing period, the center temperature of the specimen is -18 degrees CelsiusMelting at ± 2 ℃, the center temperature of the specimen is 5 ± 2 ℃ at the end of melting, with a cooling time of 1.5-2.5 hours and a heating time of 1.0-1.5 hours. The temperature difference between the center and surface of the specimen is less than 28 ℃, and the standard number of cycles is more than 300.

KDR-V5 5 sets of 16 piece rapid freeze-thaw testing machine for concrete

Execution standard:

GB/T50081-2002 "Standard Test Method for Mechanical Properties of Ordinary Concrete"

GB/T50082-2009 Test for Long term Performance and Durability of Ordinary Concrete

Method Standards

JGJ55-2000 "Design Specification for Mix Proportion of Ordinary Concrete"

JTJ053-4 "Test Code for Cement Concrete in Highway Engineering"

JTGE30-2005 "Test Code for Cement and Cement Concrete in Highway Engineering"

National Electric Power Industry Standard DL/T5150-2001 "Test Code for Hydraulic Concrete"

SL352-2006 Test Code for Hydraulic Concrete

JG/243-2009 "Concrete Frost Resistance Test Equipment"

JGJ/T193-2009 "Standard for Inspection and Evaluation of Concrete Durability"

ASTM/C666 "Standard Test Method for Rapid Freeze Thaw Capacity of Concrete" in the United States

Adopting the water freezing and thawing method, the frost resistance and thawing test of concrete specimens with a size of 100 * 100 * 400 that meet the appearance requirements can be conducted. Five sets of specimens (16 including one central specimen) can be placed at a time. During the experiment, the test piece is placed in a test rubber cylinder, which is filled with water. The rubber cylinder is then placed in a test piece box containing antifreeze, and the unit's cooling or heating of the antifreeze is used to freeze or melt the test piece in the rubber cylinder, thus completing the freeze-thaw test.

The entire operation is fully automatic and does not require human intervention. When the test is completed to the set (default of 50 times), it will automatically stop and emit a prompt sound to indicate the completion of the test. If the test needs to continue, it can accumulate the set number of times and then continue running.

Technical Specifications:

Rated voltage: AC380V/20A three-phase four wire

◆ Overall power: 3KW

Heating power: 3KW

◆ Cooling power: 3KW

Measurement accuracy: ± 0.5 ℃

Display resolution: 0.06 ℃

◆ Maximum specimen capacity: 5 sets+1 central specimen

(A total of 16 specimens)

◆ Temperature range: -25 ℃~25 ℃ (user adjustable)

◆ Temperature uniformity:<2 ℃ between each point

◆ Size of concrete test block: 100 * 100 * 400 mm

Rubber bucket size: 120 * 120 * 500 mm

Working size: 545 * 545 * 650 (mm)

◆ Dimensions: 1700 * 800 * 1000mm

Instrument weight: approximately 200kg

feature

1. The compressor has low power and 3P imported compression refrigeration. Whether placed indoors or outdoors, the noise is low.

2. Heating does not use heating tubes, resulting in low power. The heating tube is soaked in antifreeze for a long time, which is prone to conductivity and other phenomena, affecting the heating life.

3. All in one machine, easy to move in the laboratory.

4. Environmental protection. Low noise and energy-saving. The body is compact and does not take up much space.

Experimental parameters:

The freeze-thaw cycle period is 2.5-4 hours, and the melting time is not less than 1/4 of the freeze-thaw cycle. At the end of the freezing period, the center temperature of the specimen is -18 degrees CelsiusMelting at ± 2 ℃, the center temperature of the specimen is 5 ± 2 ℃ at the end of melting, with a cooling time of 1.5-2.5 hours and a heating time of 1.0-1.5 hours. The temperature difference between the center and surface of the specimen is less than 28 ℃, and the standard number of cycles is more than 300.

KDR-V9Type 9 group 28 piecesConcrete rapid freeze-thaw testing machine
Execution standard:

GB/T50081-2002Standard for Testing Methods of Mechanical Properties of Ordinary Concrete

GB/T50082-2009Standard Test Method for Long term Performance and Durability of Ordinary Concrete

JGJ55-2000Design Specification for Ordinary Concrete Mix Proportion

JTJ053-4Test Code for Cement Concrete in Highway Engineering

JTGE30-2005Test Code for Cement and Cement Concrete in Highway Engineering

National Electric Power Industry Standard DL/T5150-2001 "Test Code for Hydraulic Concrete"

SL352-2006Test Code for Hydraulic Concrete

JG/243-2009Concrete frost resistance test equipment

JGJ/T193-2009Standard for Durability Testing and Evaluation of Concrete

ASTM/C666 "Standard Test Method for Rapid Freeze Thaw Capacity of Concrete" in the United States

Adopting the water freezing and thawing method, the frost resistance and thawing test of concrete specimens with a size of 100 * 100 * 400 that meet the appearance requirements can be conducted. Nine sets of specimens (28 including one central specimen) can be placed at a time. During the experiment, the test piece is placed in a test rubber cylinder, which is filled with water. The rubber cylinder is then placed in a test piece box containing antifreeze, and the unit's cooling or heating of the antifreeze is used to freeze or melt the test piece in the rubber cylinder, thus completing the freeze-thaw test.

The entire operation is fully automatic and does not require human intervention. When the test is completed to the set (default of 50 times), it will automatically stop and emit a prompt sound to indicate the completion of the test. If the test needs to continue, it can accumulate the set number of times and then continue running.

Technical Specifications:

Rated voltage: AC380V/20A three-phase four wire

◆ Overall power: 4.2KW

Heating power: 4KW

◆ Cooling power: 4KW

Measurement accuracy: ± 0.5 ℃

Display resolution: 0.06 ℃

◆ Maximum specimen capacity: 9 sets+1 central specimen

(28 specimens in total)

◆ Temperature range: -25 ℃~25 ℃ (user adjustable)

◆ Temperature uniformity:<2 ℃ between each point

◆ Size of concrete test block: 100 * 100 * 400 mm

Rubber bucket size: 120 * 120 * 500 mm

Internal machine size: 1450 * 800 * 855 (mm)

◆ External dimensions: 1050 * 1000 * 910mm

Instrument weight: Approximately 120kg for the internal unit and 200kg for the external unit

Features:

1The compressor has low power and 5P imported compression refrigeration. Whether placed indoors or outdoors, the noise is low.

2Heating does not use heating tubes and has low power. The heating tube is soaked in antifreeze for a long time, which is prone to conductivity and other phenomena, affecting the heating life.

3Split machine with low noise.

4environment protection Low noise and energy-saving. The body is compact and does not take up much space.

5Microcomputer control function.

Experimental parameters:

The freeze-thaw cycle period is 2.5-4 hours, and the melting time is not less than 1/4 of the freeze-thaw cycle. At the end of freezing, the center temperature of the specimen melts at -18 ± 2 ℃, and at the end of melting, the center temperature of the specimen melts at 5 ± 2 ℃. The cooling time is 1.5-2.5 hours, and the heating time is 1.0-1.5 hours. The temperature difference between the center and surface of the specimen is less than 28 ℃, and the standard number of cycles is more than 300.