摘要
对比了高掺量回收沥青路面材料(RAP)的热再生混合料在旋转压实剪切试验机(GTM)旋转压实和马歇尔击实条件下的体积指标和压实参数.GTM试验表明热再生混合料比非再生混合料容易压实,RAP掺量越大越容易压实,马歇尔击实法在设计高掺量RAP热再生混合料存在局限性.并利用RAP的扫描电镜(SEM)照片分析了原因.
The paper compared the volume indicators and compaction parameters of central plant hot re-cycling mixture with high-content reclaimed asphalt pavement (RAP) at gyratory testing machine (GTM ) and Marshall compaction machine .The GTM experiments show that the hot recycling mix-ture is more easily compacted than non-renewable mixture ,the RAP content the greater the more easi-ly compacted ,Marshall compaction method has limitations in the design of high content RAP hot re-cycling mixture .the cause is analyzed from RAP scanning electron microscopy (SEM ) image .
出处
《武汉理工大学学报(交通科学与工程版)》
2014年第1期181-183,188,共4页
Journal of Wuhan University of Technology(Transportation Science & Engineering)
基金
广东省交通运输厅科技项目资助(批准号:2009-04-005)
关键词
道路工程
热再生混合料
试验研究
压实
旋转压实剪切试验机
扫描电镜
road engineering
hot recycling mixture
experimental research
compaction
gyratory testing machine
scanning electron microscopy