石棉尾矿用作沥青混合料集料特性研究  

Research on character of asbestos tailing using as asphalt mixture aggregate

作　　者：李军[1,2] 徐林荣[1] 刘小明[1] 

机构地区：[1]中南大学土木工程学院,湖南长沙410075 [2]神华甘泉铁路有限责任公司,内蒙古巴彦淖尔015000

出　　处：《铁道科学与工程学报》2011年第5期31-34,共4页Journal of Railway Science and Engineering

基　　金：交通部西部交通建设科技项目(200731800003);四川省交通厅项目(2006A24-61)

摘　　要：雅泸高速公路K112～K145里程附近囤积了30余年石棉矿的废渣,对工程可能存在滑坡、泥石流等灾害隐患,将石棉尾矿用于公路工程中,不仅可以消除安全隐患,而且使废物得以利用,具有重要意义。为将石棉尾矿用作路面沥青混合料集料,采用AC-20C型混合料,通过马歇尔、车辙、冻融劈裂等试验,评价了石棉尾矿沥青混合料高温、低温、水稳定性能。结果表明:石棉尾矿沥青混合料路用性能各项指标均满足要求,同时为石棉尾矿综合利用提供了一条途径。A large amount of asbestos tailing stacked near Yaan-Lugu Highway from K112 to K145 mileage for more than 30 years which can cause hidden disaster to the project such as latent landslide,mud-rock and so on.Using asbestos tailing for highway projects,can not only remove security risks,and also can make use of waste material,which has important significance.In order to use asbestos tailing as asphalt mixture aggregate in the pavement surface,we selected the AC-20C mixture in the Marshall,wheel rut,freezing,thawing cleavage and other experiments,and evaluated the performance of asbestos tailing asphalt mixture in the high temperature,the low temperature,and the water stablity.The result indicated that,the asbestos tailing asphalt mixture road satisfies with the requirement of performance index,simultaneously it provides a way for comprehensive utilization of the asbestos tailing

关 键 词：石棉尾矿 沥青混合料 集料 路用性能 

分 类 号：TU528.2[建筑科学—建筑技术科学]