Application: The Wheel Tracking Device measures rutting resistance ability of asphalt mixture against high temperature and supplemental tests of asphalt mixture design. Parameter: 1.Rolling distance of the grinding wheel:42±1times/ min 2.Movement distance of the testing trolley :230±10mm 3.Specimen mould size:300×300×50mm 4.Measuring range of the displacement:0-40mm 5.Wheel rutting test time:1-999min 6.Constant temperature controlling range: room tempature -80℃