Study on Semi-Rigid Road Base Asphalt Pavement Typical Structure of Town Roads

In this paper, authors analyzed the semi-rigid road base asphalt pavement of towns and studied the optimum design methods of it, combining characteristics of town roads, considering natural conditions, vehicle axle,materialsupply,construction techniques, maintenance, transportation and so on, referring to design experiences of asphalt pavement in Tian Jin area, through indoor and outdoor experiments, applying math methods. In addition,optimum pavement structure function and calculating methods is given out, asphalt pavement structure adapt to Tian Jin area is recommended and CAD program is developed.