应用冲击韧性评价沥青混合料抵抗反射裂缝能力的研究

A Study on Evaluating Ability for Resisting Reflective Cracking of Asphalt Mixture by Impact Ductility

冲击韧性是一种简单易行的评价沥青混合料抵抗反射裂缝能力的试验方法与技术指标 ,本文采用自动沥青路面分析仪 (AAPA)模拟试验验证了冲击韧性具有广泛适用性 ,并得出两种评价方法之间的相关性。

The impact ductility is a technique parameter and a kind of simple test method for evalua-(ting) the ability of resisting reflective cracking of asphalt mixture.In this paper,the impact ductility is proved that it has extensive applicability by the simulative experiment using the automatic asphalt pavement analyzer(AAPA).The reciprocity between two evaluating methods above mentioned is educed.The impact ductility offers the foundations of choosing original material and asphalt mixture types for the asphalt overlay on old roads.