I.Product standard:
1) DSHD -0719 Automatic Wheel Track tester is made as per T0719 in the Industry Standard JTJ052 Specification and Test Methods of Bitumen and Bituminous Mixture for Highway Engineering.
2) DSHD -0719 Automatic Wheel Track tester is specially applied to determine the resistance to rutting of bituminous mixture at high temperature.
3) DSHD -0719 Automatic Wheel Track tester can also be used as an auxiliary check method during bituminous mixture ratio design.
II.Technical parameters
1. Rolling speed of roller: 42±1 times/min (one way);
2. Test vehicle moving distance: 230±10mm;
3. Hardness of rubber for rolling wheel: 78±2 (International Standard Hardness);
4. Pressure between rolling wheel and test mold: 0.7±0.05MPa;
5. Test mold size: 300*300*50mm;
6. Measurement range for displacement: 0~30 mm;
7. Measurement accuracy for displacement: less than 0.01 mm;
8. Test duration: 60~240min;
9. Temperature controlling range for constant temperature case: room temperature~80℃;
10. Temperature controlling accuracy: ±0.3℃;
11. Power supply: 380 V, 50 Hz, 3 kW;
