TLA改性沥青在广肇高速公路二期工程中的应用研究  

Application of TLA Modified Asphalt on The Second Stage Project of Guangzhao Expressway

作　　者：谭敬敏 

机构地区：[1]广东省路桥建设发展有限公司,广州510635

出　　处：《石油沥青》2011年第4期15-18,共4页Petroleum Asphalt

摘　　要：特立尼达湖沥青是世界上最有名的天然沥青,其物质组成和化学性质极其稳定。近年来,湖沥青凭借其良好的路用性能得到了越来越多的应用。首先对TLA改性沥青的性能及其在工程的使用情况进行了阐述,然后从沥青混合料的制备、运输、摊铺、碾压以及接缝处理方面详细分析了TLA改性沥青混合料的应用情况,最后通过室内试验及现场检测对TLA改性沥青路面的性能进行了分析。结果表明,TLA改性沥青混合料具有良好的高温稳定性和水稳定性,其路面压实度和平整度均符合规范要求,满足了交通等级为重交通的使用要求。TLA改性沥青的成功应用可为其在高速公路上的推广应用提供参考。The trinidad lake asphalt is the most famous natural asphalt in the world,whose material composition and chemical properties are extremely stable.The lake asphalt has been increasingly applied with its favorable pavement performance in recent years.In this article,the modified asphalt performance and its using condition in this project were discussed first,and then the applications of TLA modified asphalt mixture were analyzed detailedly from aspects of preparation,transportation,paving,rolling and joint treatment of asphalt mixture,finally the performance of TLA modified asphalt pavement was analyzed through laboratory experiment and field detection.The results showed that TLA modified asphalt mixture had well high-temperature stability and water stability whose pavement compactness and smoothness meet code requirement so that it could satisfy operation requirements with heavy traffic.It is helpful and referenced for popularization and application on expressway because of TLA modified asphalt successful application in this project.

关 键 词：湖沥青 改性沥青 高温稳定性 水稳定性 路用性能 

分 类 号：U414[交通运输工程—道路与铁道工程]