沥青混合料抵抗反射裂缝能力的评价方法研究

Investigation of Evaluating Method to the Ability of Resisting Reflective Cracking for Asphalt Mixture

反射裂缝是在混凝土路面上加铺沥青面层时最常见的病害之一 .要防止反射裂缝的发生 ,主要取决于沥青混合料本身的性能 .但是 ,目前没有一种简单易行的实验方法和技术指标来评价沥青混凝土抵抗反射裂缝的能力 .本文的目的就是要找到一种行之有效的方法 ,并利用自动沥青路面分析仪 (AAPA)模拟试验验证这种方法的可行性 .

The reflective cracking is one of the major damages of the asphalt overlay on old roads. The ability of resisting reflective cracking mainly depends on the properties of asphalt mixture itself. At present, simple experimental methods and technical criterion to evaluate the ability of asphalt resisting reflective cracking are lacking. This article is an attempt to find such a method, the feasibility of which is proved by the simulative experiment using the automatic asphalt pavement analyzer (AAPA).