不同岩性集料对混合料路用性能影响研究  

Influence of Lithological Aggregates on Road Performance of Mixtures

作　　者：杜顺成[1] 陈里加 DU Shuncheng;CHEN Lijia(School of Civil & Architecture Engineering,Xi’an Technological University,Xi’an 710021,China)

机构地区：[1]西安工业大学建筑工程学院

出　　处：《西安工业大学学报》2019年第5期553-558,共6页Journal of Xi’an Technological University

基　　金：国家自然科学基金（51374165）;陕西省教育厅专项科研计划项目（16JK1378）

摘　　要：为了论证江浙地区普遍把所用集料在2.36~4.75 mm档的石料用石灰岩替换的可行性,文中针对所收集的石灰岩与玄武岩进行水稳定性和高温稳定性、低温抗裂性的试验研究,通过对混合料进行试验段现场铺设碾压,测定路面压实度与渗水情况。试验结果表明:石灰岩替代组的劈裂强度比(TSR)和残留稳定度(MS0)比玄武岩组高出1.8%和1.2%,车辙试验和破坏应变低于玄武岩组4.6%和0.9%,结果符合规范要求。The study is aimed to demonstrate the feasibility of replacing the aggregates used in the 2.36~4.75 mm stone with limestone in Jiangsu and Zhejiang provinces.The water stability,high temperature stability and low temperature crack resistance of the collected limestone and basalt were tested.The mixture was subjected to rolling test on the test section,and the road surface compaction degree and water seepage were measured.The test results show that the splitting strength ratio(TSR) and residual stability(MS0) of the limestone replacement group are 1.8% and 1.2% higher than those of the basalt group,and the rutting test and failure strain are lower than those of the basalt group by 4.6% and 0.9%. The results meet the requirements.

关 键 词：道路工程 集料 石灰岩 玄武岩 

分 类 号：U416.217[交通运输工程—道路与铁道工程]