Asphalt Pavement Preventive Maintenance Technology Overview

Since twentieth Century, the middle of 80's, our country highway enters the building climax. By the end of 2011, our country highway traffic mileage of 85000 kilometers, accounting for about 80% of the asphalt concrete pavement. Along with the age increasing and the mileage of highway's growth, has long suffered from the traffic load and environmental effects of the asphalt pavement will have varying degrees of damage, repair workload of asphalt pavement will be bigger and bigger, more and more complex. In this situation, has the important meaning of preventive maintenance of Expressway Asphalt pavement. This paper introduces the present situation of preventive maintenance of highway at home and abroad, and points out the significance of preventive maintenance on highway and economic development, discusses the measures and preventive maintenance of asphalt pavement.