PQI的检测原理及影响其密度测值的因素分析  

Operation Principle of PQI and Factors Affecting Its Density Readings

作　　者：倪宏革[1] 林奇云 徐静 

机构地区：[1]鲁东大学土木工程学院,山东烟台264025 [2]烟台市规划设计研究院有限公司,山东烟台264001 [3]重庆岩土工程检测中心,重庆401147

出　　处：《筑路机械与施工机械化》2011年第7期32-35,11,共4页Road Machinery & Construction Mechanization

基　　金：山东省高等学校科技计划项目(J06F51)

摘　　要：0引言Pavement Quality Indicator（PQI）是一种利用电磁学原理,通过测定沥青面层材料的介电常数进而获得面层密度的便携式无损检测设备。利用PQI可以实时、无损、高效、安全地检测新建沥青路面的密度。如果已知沥青路面的最大理论密度并将其输入PQI中,则PQI还可以自动计算出各测点的压实度。在国外,The operation principle of Pavement Quality Indicator,a portable non-destructive testing device,was introduced, and factors which might affect its density readings were analyzed.Through the on-site tests,the humidity and temperature of pavement were studied to find out their influence on test results.Finally,the cautions which should pay attention to when applying PQI301 to density testing were presented.

关 键 词：最大理论密度 检测原理 PQI 无损检测设备 沥青面层材料 测值 沥青路面 介电常数 

分 类 号：U416.05[交通运输工程—道路与铁道工程]