详情

Asphalt Mixture Design and Performance Properties - SHRP Gyratory Compactor

项目名称：	Asphalt Mixture Design and Performance Properties - SHRP Gyratory Compactor
摘要：	Over the past two decades, Superpave mix design has been refined and most state DOTs have fully or partially adopted it. Unlike other state DOTs, Tennessee Department of Transportation (TDOT) is currently still using the Marshall mix design method for designing its fine graded asphalt mixtures. TDOT has also refined this method over the years by specifying certain criteria to be met. This method has served TDOT well in the past and continues to be effective. However, the Marshall method currently does not allow for design of larger stone mixes due to the size limitations in the design method. It also hinders the technical information exchange and communication of TDOT engineers, staff, and administrators with their counterparts from other state DOTs which adopted Superpave mix design. The research project aims to compare Marshall and Superpave mix design methods using typical TDOT asphalt mixtures and recommend an improved mix design method for TDOT. This proposed method should be able to keep the good aspects of both mix design methods, while enabling TDOT take advantage of technical advancement and making it easier for technical communication and information exchange. Purposes of the project are: 1) to compare different asphalt mixture design methods using TDOT typical asphalt mixtures, including TDOT refined Marshall method, currently specified Superpave System (AASHTO M323/R35/T312), the modified version of the Superpave system (NCHRP 573); 2) to recommend a modified mix design method combining the benefits of both Marshall and Superpave methods; 3) to recommend a mix design method for larger stone mixtures.
状态：	Active
资金：	179,195.72
资助组织：	Federal Highway Administration
管理组织：	Tennessee Department of Transportation
项目负责人：	Chandler, Matthew
执行机构：	University of Tennessee, Knoxville
主要研究人员：	Huang, Baoshan
开始时间：	20151001
预计完成日期：	20191231
实际结束时间：	0