ABSTRACT
In this paper, the characteristics of semi flexible pavement base materials were studied through experiments. Based on the experiments, the design method of emulsified asphalt and cement stabilized macadam mixture, performance test, mechanical analysis of semi flexible pavement structure, construction technology were studied. The results show that by using the framework of the skeleton block distribution, the mixture has good physical, mechanical properties, high temperature stability, low temperature flexibility and anti fatigue properties. The use of emulsified asphalt and cement stabilized crushed stone base in place of semi-rigid base can effectively reduce the maximum vertical shear stress and improve the crack resistance of pavement. Meanwhile, the trial road shows that the mixture of emulsified asphalt and cement stabilized macadam mixture has good uniformity, and easy compaction.
