沥青混合料自愈性能研究综述

摘要

阐述了沥青混合料的自愈合机理、评价指标及测试方法,从内在因素和外在因素两个角度,评述了沥青、矿粉、愈合温度和破坏程度等对沥青混合料自愈性能的影响,基于能量供给和物质补充原理,总结了沥青材料自愈合能力增强技术,并分析了加热和掺加含有界面粘合剂的微胶囊两种增强措施,对延长沥青路面使用寿命具有一定意义.%This paper presents self-healing mechanism, evaluation parameters, test methods of asphalt mixtures. The effects of asphalt, mineral fillers, healing temperature and the degree of damage are discussed from the intrinsic and extrinsic properties. Summed up two kinds of enhance-ment technology, which are based on the principal of energy supply and substance filling. This paper emphasizes the two enhancements which are heating and microcapsules containing adhesive binders. It has an important significance for the extension of the service life of asphalt pavement.