摘要
基于沥青具有自愈特性的事实,阐述了沥青自愈的定义、影响因素和增强措施。综述了前人对沥青自愈过程、模型以及评价方法的研究,并从多层次、单一材料到混合材料的角度,评述了矿粉、聚合物改性剂、细集料等对沥青自愈性能的影响。研究沥青混合料的自愈性能,对优化聚合物改性设计,延长沥青路面的使用寿命具有重要的意义。
It is known that asphalt has the property of self healing. This paper presents the definition, influencing factors, and en- hancement measures of asphalt self-healing. In first instance, the previous research on the process, models, and evaluation meth- ods of asphalt self-healing are summarized. Then the effects of mineral fillers, polymer modifiers, fine aggregates on the self- healing properties of asphalt are discussed from perspectives of single material component and mixed materials. Research on self- healing properties of asphalt mixture is of great significance to optimize the polymer modified asphalt design and to extend the service life of asphalt pavements.
出处
《中国科技论文》
CAS
北大核心
2013年第5期435-440,共6页
China Sciencepaper
基金
高等学校博士学科点专项科研基金资助项目(20120092110053)
关键词
沥青自愈
影响因素
疲劳特性
增强措施
使用寿命
asphalt self-healing
influencing factors
fatigue properties
enhancing measures
service life
