不同层间接触状态的半刚性基层抗裂性能研究  

Research on Anti-crack of Semi-rigid Base in Contact State Between Different Layers

作　　者：刘春雨[1] 吕振北[2] 

机构地区：[1]内蒙古交通职业技术学院,赤峰024005 [2]长安大学材料科学与工程学院,西安710064

出　　处：《武汉理工大学学报（交通科学与工程版）》2012年第6期1292-1295,共4页Journal of Wuhan University of Technology（Transportation Science & Engineering）

摘　　要：同种材料铺筑而成的半刚性基层具有良好路用性能,但仍会产生路面反射裂缝.通过对不同层间接触状态(上、下层间隔时间分别为0,7d和30d)的半刚性基层进行了抗裂性能研究分析,结果显示:层间接触状态连续的半刚性基层具有最佳抗裂性能,且随着层间接触状态条件下降,其抗裂性能越差.The semi-rigid base which is made up by the same material has a good performance in road construction,at the same time,however,it still produces the reflection crack of the road. This paper mainly works on the performance of anti-crack in contact state between different layers（namely, the in- terval time between the upper stratum and the lower stratum are 0, 7d, 30 d）, it turns out to be that the entirety base which has the performance of time continuous in contact state between layers has the best performance of anti-crack, and with the interlayer contact condition falls, its crack-resistance per- formance worse.

关 键 词：半刚性基层 层间状态 抗裂性能 干缩抗裂系数 温缩抗裂系数 

分 类 号：U416.03[交通运输工程—道路与铁道工程]