详情

Developing a Design Methodology and Quality-Control Measures to Use Reclaimed Asphalt Pavement in Unbound Base Aggregate in Flexible Pavements

项目名称：	Developing a Design Methodology and Quality-Control Measures to Use Reclaimed Asphalt Pavement in Unbound Base Aggregate in Flexible Pavements
摘要：	More than 90 percent of Virginia�s roads are built with hot-mix asphalt (HMA). A byproduct of their periodic reconstruction is asphalt millings, or reclaimed asphalt pavement (RAP). Current limits on the percent of RAP that can be reincorporated into new hot mixes means more recycled material is accumulated than can be reused in these reconstruction operations. Thus, alternative uses are needed . Recent Virginia Department of Transportation (VDOT) research found that state transportation departments often consider RAP for pavement subbase and base courses. VDOT is considering blends of RAP with virgin aggregate in unbound aggregate base (UAB) layers. This project will investigate the practical limits of RAP blends for UAB, while studying specific characteristics of aggregate sources and RAP stockpiles in Virginia. The researchers will identify appropriate quality-control methods to ensure proper construction in the field. They also will develop draft specifications for VDOT.
状态：	Active
资金：	300000
资助组织：	Virginia Transportation Research Council
项目负责人：	Hoppe, Edward
执行机构：	George Mason University
主要研究人员：	Tanyu, Burak
开始时间：	20151015
预计完成日期：	20201130
实际结束时间：	0