Study on the Properties of Pavement Surface Materials Based on Microwave Heating
Four kinds of different aggregates were used for high friction road surface treatment(HFST),and the microwave heating effect of HFST with different aggregate composition was tested.Then the corresponding anti-sliding performance was evaluated by measuring the friction pendulum value.The results show that the heating rates of iron ore and steel slag aggregate are 1.5803 and 1.2763,respectively,while the heating rates of basalt and calcined bauxite aggregate are 0.8861 and 1.1143,respectively.Therefore,steel slag and magnetite can be used as absorbing materials to replace traditional bauxite aggregate in the material composition design of HFST.The microwave heating per-formance of HFST specimen is directly proportional to the replacement rate of bauxite aggregate by steel slag and magnetite.With the increase of the substitution rate of steel slag and magnetite,the friction pendulum values of binary system specimens all showed a decreasing trend,and the friction performance of magnetite-calcined bauxite system showed a relatively stable performance,while the friction performance of steel slag-calcined bauxite system fluctuated greatly.
万方数据
维普
