详情

Rolling Density Meter to Ensure Long Term Performance of Flexible Pavements

项目名称：	Rolling Density Meter to Ensure Long Term Performance of Flexible Pavements
摘要：	Proper compaction of asphalt mixtures remains a key factor in achieving long term pavement performance. Traditional localized spot density tests provides little testing coverage resulting in high producer and consumer risks; such testing also can miss localized defect areas which eventually govern the pavement life. This project will employ a rolling density meter to collect measurements at 6 inch spacing over newly constructed asphalt mixtures focusing on two applications: full lane testing coverage, and longitudinal joint density. With the advent of thin and ultra-thin mixtures, rolling density meter technology will provide much value since traditional coring can prove difficult with thin lifts. The research team will analyze the precision of the rolling density meter, perform an initial accuracy evaluation, shadow test the rolling density meter on construction projects and compare results to the traditional method using calibration core reference values. Additionally, the research team will evaluate a new license-free non-nuclear (does not require radioactive materials licensing) density gauge and perform limited evaluation of an emerging 32 channel rolling density meter.
状态：	Completed
资金：	360684
资助组织：	Texas Department of Transportation
项目负责人：	Adams, Joe
执行机构：	Texas A&M Transportation Institute, College Station
主要研究人员：	Sebesta, Stephen
开始时间：	20150901
预计完成日期：	20171231
实际结束时间：	0