The Comparative Study Of Maintenance Techniques On Typical Disease Of Highway Asphalt Pavement In Our Country And Outside

After nearly a decade of rapid development,as of the end of 2011,the total mileage of national freeway has reached 86,000 kilometers,second only to the United States,ranking second in the world [1]. The next decade,China’s freeway from the transportation construction period into the custody of,the corresponding conservation to achieve optimum results for a variety of road surface disease,to become the important issue of domestic freeway pavement maintenance work. In addition, China has built the freeway pavement, according to incomplete statistics,about 80 percent of the asphalt pavement [2]. Therefore,the conservation of the asphalt pavement has become the top priority of the freeway pavement maintenance.This article rely on a large number of domestic and international literature review and a unit on the existing freeway maintenance and management of field research more in-depth study on the conservation of typical disease of asphalt pavement at home and abroad. First article on the Asphalt Pavement analysis,outlined a variety of disease types of asphalt pavement,the visual distinction between the disease(including appearance,the location,etc.),analysis of various diseases for the road traffic conditions, pavement life, pavement maintenance cost factors and their differences,initially described the asphalt pavement at the present stage disease,and summed up the cracks,ruts,pits typical asphalt pavement at the present stage of disease type,focused on research; summarized the three various typical disease type layer by layer analysis of a single chapter,first outlined three disease specific causes for the different factors that lead to the corresponding conservation technology are described and compared,then down raised the lack of domestic conservation technology and the final summary recommendations expressed; Finally,to summarize the status of the asphalt Pavement vision for the future.