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作为路面主要材料的沥青,已成为公路建设长久不衰的一种筑路材料,从目前的通村油路到城市道路,三级公路到高速公路均普遍采用。但由于沥青材料本身的差异性,以及受设计和施工水平的影响,加之近年超吨位车辆的大量增加,沥青路面常常出现纵向、横向裂缝,部分路段出现泛油、松散、坑槽、拥包、(推移)、脱皮、沉陷等常见病害。这些病害的出现严重影响了行车速度,行车安全,加大了汽车磨损,缩短了沥青路面的使用寿命,影响了道路的投资效益和社会经济效益。
As the main material of asphalt pavement, road construction has become a long-standing road building materials, from the current village road to the city road, road to highway are widely used. However, because of the difference of asphalt material itself, as well as the influence of design and construction level and the increase of super-tonnage vehicles in recent years, vertical and horizontal cracks in asphalt pavements often occur. Oil pan, loose, pit, (Pass), peeling, subsidence and other common diseases. The emergence of these diseases have seriously affected the driving speed, driving safety, increased vehicle wear and tear, shortening the service life of asphalt pavement, affecting the road investment and social and economic benefits.