Asphalt Pavement Sliding Layer

The latest domestic and foreign achievements on anti-skidding surface of asphalt pavement were collected in this paper, and the major problems on grade design in our country were also thoroughly analyzed. According to systematic analysis on anti-skidding mechanism of asphalt pavement surface, the paper introduced the concept of reference point and forbidden zone of Superpave technology to control grade curve' s trends and discussed the influence on pavement surface' s ability of anti-skidding and durability.In the light of domestic successful experience, 5 kinds of typical grades were tested, and their pavement performance, such as high temperature, low temperature, fatigue, anti-skidding properties and water stability , were compared. After systematic comparing and researching, several recommended grades of anti-skidding surface was brought up. Comparing to grades with different kinds of aggregate, this paper made it clear that it is important for the durability of anti-skidding performance to keep a appropriate ratio of coarse and fine aggregate. Aiming at defects of traditional Marshall method in designing during practice, this paper improved this from two ways: first, adjusting the number of hammer during moulding; second, using another designing method for comparing ?GTM , which can reflect the work condition of pavement more practically. Research had proved that the both methods can efficiently improve the performance of the skidding resistant surface.