无核密度仪(PQI)在道路工程领域的应用现状  

Application of Non-nuclear Density Gauge in Road Engineering

作　　者：林春梅[1] 潘洋[1] 

机构地区：[1]天津市市政工程设计研究院,天津市300051

出　　处：《城市道桥与防洪》2013年第7期322-325,25,共4页Urban Roads Bridges & Flood Control

摘　　要：文中利用无核密度仪(PQI)检验温度离析对沥青面层压实质量,采用无核密度仪(PQI)快速无损地定量检测沥青混凝土路面的密度变化情况,对施工质量进行动态控制和评估,分析了沥青混凝土路面在横向和纵向的非均匀性及其原因。同时,研究了温度对沥青混凝土路面均匀性的影响,结果表明温度只要在压实温度以上,对非均匀性的影响并不明显。The non-nuclear density gauge is used to test the temperature segregation for the compaction quality of asphalt surface layer.The non-nuclear density gauge is used fast and nondestructively to quantify and test the density variation of asphalt concrete pavement to carry out the dynamic control and evaluation of construction quality.The article analyzes the transverse and longitudinal heterogeneities of asphalt concrete pavement and its causes,and also studies the influence of temperature on the uniformity of asphalt concrete pavement.The result shows that the temperature does not obviously influence the heterogeneity if only above the compaction temperature.

关 键 词：道路工程 温度离析 无核密度仪 压实度 

分 类 号：U416.03[交通运输工程—道路与铁道工程]