沥青混合料试件切割前后对体积指标的影响分析  

Asphalt Mixture Volume Index before and after Cutting the Influence Analysis

作　　者：胡兴国[1] 何连明[1] 韩超[1] 关永胜[1] 

机构地区：[1]江苏省交通科学研究院股份有限公司,江苏南京211112

出　　处：《公路工程》2013年第2期20-22,26,共4页Highway Engineering

基　　金：科学技术部国际科技合作与交流专项项目(2010DFB83850)

摘　　要：密度,空隙率和压实度是沥青路面施工质量控制中的关键性指标,分析由于路面取芯或切割导致表面纹理变化而对试件体积指标的影响。通过采用不同级配类型成型试件,就每个切割步骤的试件进行密度测试,研究切割前后对体积指标或压实度判断的影响,进而提出对压实度更精确、更合理的测试建议。Density, air void ratio and compactness are the key indicators during asphalt pavement construction control. This paper focuses on the influence of the mixtures volume performance resulted by pavement coring or specimens＇ cutting. According to density testing the specimens from each cutting steps of different grading types, volumetric changing is analysed, and compaction degree influenced by cutting is also studied. Much more accurate and reasonable compactness testing suggestions are proposed at last.

关 键 词：沥青路面 压实度 空隙率 表干密度 

分 类 号：U416.03[交通运输工程—道路与铁道工程]