详情

Evaluation of Enhanced - Friction Asphalt Overlays and Surface Treatments

项目名称：	Evaluation of Enhanced - Friction Asphalt Overlays and Surface Treatments
摘要：	This project will evaluate alternative asphalt-based solutions, both thicker asphalt mixtures and thinner asphalt-based surface treatments, that may provide similar frictional benefits to HFSTs, but with reduced cost and/or increased durability. Specifically, this project will explore potential high friction aggregate options that could be used in Florida and can be incorporated into asphalt mixtures and/or surface treatments. The project will explore and optimize the type(s) and amount of high friction aggregate(s) needed in existing Florida Department of Transportation (FDOT) friction courses (FC-4.75, FC-9.5, and FC-5) containing other aggregates commonly used in Florida for surface mixtures (south Florida limestone and Georgia granite) to significantly improve the frictional characteristics of these mixtures. Note 1: FC-4.75 has been used on occasion by FDOT. It is governed by a developmental specification located on the Department’s website. FC-4.75 can be placed thinner than traditional dense graded friction courses commonly used by the Department and may provide a more cost-effective option than FC-9.5. The project will also determine the most cost-effective measure for improving friction characteristics to multiple prescribed levels.
状态：	Active
资金：	240000
资助组织：	Auburn University
管理组织：	Florida Department of Transportation
项目负责人：	Chami, Ahmad
执行机构：	Auburn University
主要研究人员：	Musselman, James
开始时间：	20220422
预计完成日期：	20231231
主题领域：	Highways；Materials；Pavements