Asphalt pavement is a kind of pavement formed by paving and rolling asphalt concrete. Asphalt concrete is a mixture of asphalt material with certain viscosity and proper amount and mineral aggregate with certain gradation, which is fully mixed. As asphalt pavement material, asphalt concrete should bear the repeated action of vehicle load and the long-term influence of environmental factors. Therefore, asphalt concrete in a certain bearing capacity, but also must have a good resistance to natural factors of the role of durability. That is to say, sufficient stability at high temperature, crack resistance at low temperature, good water stability, lasting aging resistance and safety skid resistance are required. To ensure good service function of asphalt pavement.

