New standard coarse aggregate solidity tester

1New standard coarse aggregate solidity testerIntroduction

Our company's main products are asphalt testing instruments, concrete and cement testing instruments. Geotechnical testing instruments, curing boxes, curing rooms, waterproofing membrane instruments, building equipment.

2、 Product Introduction

JGY-IIIThe aggregate solidity tester meets the requirementsJTG3432-2024Test code for aggregate in highway engineering: This method is applicable for determining the loss of aggregate quality under the soaking and dry explosion cycles of saturated solution or saturated magnesium solution,To indirectly evaluate the solidity of coarse aggregates. The sink adopts304Stainless steel material, industrial control part is usedPLCAnd touch LCD screen(Equipped with temperature recording function).

IIINew standard coarse aggregate solidity testerTechnical Specifications

1Temperature control range:21±1Degree ℃

2Power supply voltage220vscholar10v

3Display accuracy: ±0.1℃

4Container capacity:55rise

5Heating power:1500w

6Cooling power:280W

7Number of lifts and descents:25time(Can be set)

8Overall dimensions:long1050mmwide600mmtall850mm

three、Test ProcedureEquipment connected for communication220VFor the leakage protector, inject the prepared test solution into the container, set the soaking time, and click the screen to turn on the key equipment to enter a constant temperature state. Wait until the temperature reaches21At ℃, place the aggregate particles of the tested particle size into different three legged baskets and immerse them in containers containing saturated sodium sulfate solution. Then click the test button on the screen to automatically raise and lower the basket25time(The lifting height is about25 mm）To eliminate bubbles,Then let it sit still in the container. At the same time, the volume of saturated solution should not be less than that of each particle size of aggregate particles5Twice. After immersing each particle size into a saturated solution, the distance between the bottom of the tripod basket and the bottom of the container(Controlled by the height of the net basket feet)Spacing, three wall spacing, and spacing between three legged mesh baskets,Not less than20mm:And the liquid level of the saturated solution should be at least higher than the surface of the aggregate particles20mmCover the container promptly,And keep the saturated solution at a constant temperature21℃±1℃,Let it stand and soak20h±0.25hExtract a three legged mesh basket from the solution,drip dry15min±5minafter,placed in105℃ soil5Dry in an oven at ℃4h±0.25h:Cover the container promptly,And continue to maintain a constant temperature of the saturated solution. Remove each particle size of aggregate from the oven and cool it down2h±0.25hto21℃±1℃;Accelerated cooling can be achieved through environmental chambers, air conditioning, or electric fans. This completes the first saturated solution soaking, heating and drying test cycle. Crush the crystalline sulfate in the container,Stir saturated solution and let it stand30minAfter checking the relative density of the saturated solution, follow the above test procedure for four cycles,But adjust the soaking time to4h±0.25h

4、 Installation instructions

1The equipment should be placed at room temperature10℃ to30℃； The relative humidity should not exceed80%Indoor. There should be good ventilation indoors.

2When unpacking, be careful not to bump the box and its components.

3It is recommended to use an air switch with leakage protection for the power supply of this device,

4This equipment should be placed on a flat surface, and it is required that all four feet at the bottom of the equipment should be in contact with the ground and apply even force.

5、 Product calibration

This product should be inspected and calibrated by a unit with national inspection qualifications before use. The inspection method is as follows

1The inspector must have the qualification for inspection.

2The verification conditions should be carried out under the constant temperature state of this product.

3Standard thermometers should be used during inspection. Insert the standard thermometers into the water bath separately

There are representative parts above the grille(Note:; Cannot be inserted under the grate)

4Read the temperature value on the standard thermometer and modify the temperature difference through the temperature correction function.