旧水泥混凝土路面沥青加铺层反射裂缝研究

Study on reflect crack of asphalt overlays on the existing old cement concrete pavement

从沥青加铺层反射裂缝的启裂和扩展两个阶段分别对荷载型反射裂缝和温度型反射裂缝的形成机理进行了分析,得出了两种不同类型反射裂缝的产生和扩展规律,并针对裂缝的成因提出了四种相应的处治措施,以最大限度限制其反射裂缝的发生与扩展。

The formation mechanism of loading reflect crack and temperature reflect crack were analyzed from asphalt overlays reflect crack initiation and expanding,the generation and expanding rules of two different types reflect cracks were obtained.Four corresponding treating measures were proposed against to crack forming reasons,so as to limit reflect crack occur and expand at the maximum degree.