(g/m2)=Am1​−m2​​×106

FY-0752 Slurry Mixture Wet Wheel Abrasion Tester

1.  Product Overview

The FY-0752 wet wheel abrasion tester is a specialized equipment used to measure the water resistance performance of emulsified asphalt slurry mixtures (such as micro surfacing and slurry sealing layers), which meets the requirements of the JTG E20-2011 (T0752-2011) standard for testing asphalt and asphalt mixtures in highway engineering. Evaluate the wear resistance and water stability of wet mixtures by simulating the wear effect of wheels.

2.  Working principle

• Wear test: Soak the formed slurry mixture specimen in water and rub its surface with a rotating rubber wear wheel (applying a certain load) to simulate actual traffic wear.
• Quantitative indicators:The wear resistance of the mixture is expressed in terms of the amount of wear per unit area (g/m ²), and the lower the value, the better the performance.

3. Technical Parameters

Power supply voltage: 380V-250V
Quality of wear head: 2.27kg ± 20g
Time controller: digital display adjustable
Wear head rotation speed 140 / min revolution 61 / min
Circular template: 360 * 360 * 6.4mm
Middle round hole diameter: 280mm

4. Operation steps

1.  Preparation of test specimens:
   Form the slurry mixture test piece according to the specifications and cure it for the specified time (usually 6d or 16h oven accelerated curing).
2. Soaking treatment:
   Soak the test piece in a 25 ℃ constant temperature water bath for 1 hour.
3. Installation of test specimens:
   Fix the specimen on the wear tester tray and adjust the height of the wear wheel to make it contact the surface of the specimen.
4. Start testing:
   Set the wear time (usually 5 minutes), start the instrument, and the wear wheel begins to rotate.
5. Result calculation:
   Weigh the difference in mass of the specimen before and after wear, and calculate the wear amount:

5.  Precautions

1. Calibration requirements:
   Regularly check the hardness and load of the wear wheel to ensure compliance with standards (it is recommended to calibrate every 3 months).
2. Sample processing:
   After soaking, it is necessary to wipe the surface with a damp cloth to avoid additional moisture affecting the weighing accuracy.
3. Instrument maintenance:
   Clean the wear wheels and trays after testing to prevent residual mixture from corroding the components.
   When not in use for a long time, the worn wheels should be unloaded and stored to avoid rubber deformation.

6. Application scenarios

• Highway engineering: Evaluate the durability of micro surfacing and slurry seal mixtures.
• Research and testing: Optimize the formula of emulsified asphalt and the design of aggregate gradation.
• Quality acceptance: Performance verification of mixed materials before construction.

7.  Common problem handling