Ⅰ. Introduction
» GD-0719 Automatic Wheel Tracking Tester is used to test the wheel-track against capability of bituminous mixtures in high temperature .
» GD-0719 Automatic Wheel Tracking Tester also can us as the assitant tester of match design for bituminous mixtures .
» All technical index and test method conforming to the testing gauge and requirement of bituminous mixtures wheel-track test T7019-2011 in the standand JTG E20-2011.
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°C |
| 10 | Temperature controlling accuracy | ±0.3°C |
| 11 | Power supply | 380 V, 50 Hz, 3 kW |
Note: Usually GD-0719 Automatic Wheel Tracking Tester to be used together with GD-0703 Hydraulic Wheel Track Molding Machine.
III. GD-0719 Series Automatic Wheel Tracking Tester
| 1 | GD-0719 Automatic Asphalt/Bitumen Wheel track tester (Common Model) |
| 2 | GD-0719A Automatic Asphalt/Bitumen Wheel Rutting Tester (Research-based) |
| 3 | GD-0719B Automatic Asphalt/Bitumen Wheel Rutting Tester (Research-based) |
