路面雷达在沥青混凝土路面离析检测中的应用研究  

A Study on Applacation of GPR Segregation Detection of Asphalt Concrete Pavement

作　　者：钟燕辉[1] 李强[1] 陈忠平[1] 李嘉[1] 张君静[1] 

机构地区：[1]郑州大学环境与水利学院,郑州市450002

出　　处：《公路》2007年第4期117-123,共7页Highway

基　　金：国家科技成果重点推广计划项目-高等级公路无损检测与CAE技术(2004EC000214);河南省杰出人才创新基金-探地雷达关键技术研究(0321000800)

摘　　要：对沥青混凝土路面级配离析的路面雷达检测技术进行了研究,通过试验得到了沥青混合料介电常数与密度、空隙率、沥青含量的相关关系以及密度与构造深度的相关关系;通过对芯样介电常数与级配、密度、空隙率之间关系的分析研究,得出了路面雷达检测判定沥青混合料级配离析的标准。In the paper, significant findings and results from the experimental researches regarding the aggregate segregation test of asphalt mixture by using Ground-Penetrating Radar are as follows： the mutual relationship between the dielectric constant and density, percentage of voids and asphalt content of bituminous mixture and the correlation between density and the surface texture depth. The criterion for determining bituminous mixture segregation by GPR is obtained through the analysis of mutual relationship between the dielectric constant and gradation, density and percentage of voids of core samples.

关 键 词：路面雷达 介电常数 沥青混凝土路面 离析 

分 类 号：U414.75[交通运输工程—道路与铁道工程]