整体大厚度水泥稳定碎石基层耐久性研究  

Study on durability of entirety large thickness cement stabilized macadam

作　　者：田耀刚[1] 石帅锋 刘芳 李宏超[1] 李炜光[1] 

机构地区：[1]长安大学交通铺面材料教育部工程研究中心,西安710064 [2]河南省交通公路管理局,郑州450052

出　　处：《河南理工大学学报（自然科学版）》2015年第3期420-425,共6页Journal of Henan Polytechnic University（Natural Science）

基　　金：国家自然科学基金资助项目(51208046;51208047);海南省重点科技计划项目(ZDXM20120069);交通运输部建设科技项目(2013318J09230);河南省交通运输厅科技项目(2012D11);中央高校基本科研业务费专项基金资助项目(CHD2011JC091)

摘　　要：为研究层间状态与上下层压实度差异对整体大厚度水泥稳定碎石基层耐久性能包括干缩、温缩和抗冲刷性能的影响,通过室内模拟不同层间状态和上下层不同压实度差异的方法进行研究。结果表明:层间状态与上下层压实度差异对整体大厚度水泥稳定碎石基层的干缩、温缩和抗冲刷性能具有较大影响;比较而言,上下层压实度差异对干缩性能影响更大,而层间状态对抗冲刷性能影响更明显,层间状态和上下层压实度差异对其温缩性能均有明显影响;提高层间状态的连续性、降低上下层压实度差异可提高整体大厚度水泥稳定碎石基层的耐久性能。For studying layer state and compactness difference about upper layer and lower layer had an influ- ence on durability of entirety large thickness cement stabilized macadam including drying shrinkage perform- ance, temperature shrinkage performance and anti-erosion performance. Research was processed by simulating layer state and compactness difference about upper layer and lower layer in the laboratory; The results showed that layer state and compactness difference about upper layer and lower layer had great influence on entirety large thickness cement stabilized macadam base drying shrinkage performance, temperature shrinkage perform- ance and anti-erosion performance; comparatively speaking, compactness difference about upper layer and lower layer had greater influence on drying shrinkage performance, but layer state had obvious influence on an- ti-erosion performance, both of them had obvious influence on temperature shrinkage performance; improving the layer state continuity and decreasing compactness difference about upper layer and lower layer can enhance entirety large thickness cement stabilized macadam base durability performance.

关 键 词：大厚度 水泥稳定碎石 干缩性能 温缩性能 抗冲刷性能 

分 类 号：U415.6[交通运输工程—道路与铁道工程]