摘要
沥青混合料水损坏是沥青路面主要破坏形式之一。基于表界面理论,推导出沥青在矿料表面的粘附模型和水损坏模型;通过柱状灯芯技术和插板法,测得2种矿料和2种沥青的表面能参数指标;带入模型分析得出,沥青在矿料表面的粘附趋势以及发生水损坏的趋势;讨论了沥青和矿料的表面能参数对粘附及水损坏的过程的影响;最后分析了石灰石与沥青抗水损坏能力强的根本原因。
Moisture was a key factor in the deterioration of the asphalt pavement, Adhesion model and moisture damage model of asphalt mixture were presented based on surface theory, By the column wicking and Wilhelmy plate method, parameters of asphalt and aggregate were measured by the column wicking and Wilhelmy plate method respectively, Tendencies of adhesion model and moisture damage model were analyzed. The influence of surface parameters of asphalt and aggregate was discussed. The reason why limestone-asphalt mixture had a good moisture stability damage was stated.
出处
《武汉理工大学学报》
CAS
CSCD
北大核心
2007年第5期71-73,97,共4页
Journal of Wuhan University of Technology
关键词
道路工程
沥青路面
水损坏
表面能量理论
模型
highway engineering
asphalt pavement
water damage
surface energy theory
model
