沥青路面坑槽形成机理及抗剥离剂的效果评价

Formation Mechanism of Asphalt Pavement Pits and Evaluation of Effectiveness of Antistripping Agent

坑槽是沥青路面常见的早期病害,本文根据沥青路面坑槽产生的部位对坑槽进行分类,利用表面张力理论对坑槽的形成机理进行分析,并对影响坑槽形成、发展的因素进行归纳。水煮试验、冻融劈裂试验和浸水马歇尔试验结果显示消石灰、胺类和非胺类抗剥离剂可显著提高沥青混合料抗水损害能力。

Pits were the common early diseases of asphalt pavement. In this paper, the pit was classified according to the location of the pits in the asphalt pavement. The formation mechanism of the pits was analyzed by the surface tension theory,and the factors influencing the formation and development of the pits were summarized. The results of boiled test, freeze-thaw splitting test and immersed Marshall test show that lime, amines and non-amine anti-stripping agents can significantly improve the ability of asphalt mixture to resist water damage.