Performance of Recycled Asphalt Shingles in Hot Mix Asphalt

Over the last 10 years the use of recycled asphalt shingles (RAS) in hot-mix asphalt (HMA) applications has grown across the U.S. Although the majority of states use manufacturers' waste shingles, interest has been rapidly growing in the use and applications of tear-off or post consumer RAS in HMA. Previous research allowed for only limited laboratory testing and field surveys. Multiple state demonstration projects would provide adequate laboratory and field test results to more comprehensively answer remaining design, performance and environmental questions and concerns. These concerns include the qualification of tear-off RAS for use in HMA and utilization of tear-off RAS ensuring acceptable long-term HMA performance. For this reason, the Missouri Department of Transportation (MoDOT) has formed a transportation pooled fund (TPF) to study and promote RAS in HMA. The primary goal of this study is to address research needs of state departments of transportation (DOTs) and environmental officials to determine the best practices for RAS in HMA applications. The study will address the following research objectives: (1) Address concerns of quality assurance (QA) and quality control (QC) in sourcing, processing and incorporating RAS to achieve final product meeting requirements for state HMA applications. (2) Create specifications that include sufficient language to cover QA/QC concerns. (3) Conduct demonstration projects to provide laboratory testing and field surveys to determine the behavior and performance of RAS in HMA at varying percentages, climates and traffic. (4) Create a comprehensive database on the performance of RAS in HMA applications.


  • English


  • Status: Completed
  • Funding: $807500.00
  • Contract Numbers:

    RD 09 28


  • Sponsor Organizations:

    Wisconsin Department of Transportation

    4802 Sheboygan Avenue
    Madison, WI  United States  53707

    Missouri Department of Transportation

    1617 Missouri Boulevard
    P.O. Box 270
    Jefferson City, MO  United States  65102

    Minnesota Department of Transportation

    395 John Ireland Boulevard
    St Paul, MN  United States  55155

    Iowa Department of Transportation

    800 Lincoln Way
    Ames, IA  United States  50010

    Indiana Department of Transportation

    Indiana Government Center North
    100 North Senate Avenue
    Indianapolis, IN  United States  46204-2249

    Illinois Department of Transportation

    2300 S. Dirksen Parkway
    Springfield, IL  United States  62764

    California Department of Transportation

    1227 O Street
    Sacramento, CA  United States  95843

    Colorado Department of Transportation

    4201 East Arkansas Avenue
    Denver, CO  United States  80222

    Federal Highway Administration

    1200 New Jersey Avenue, SE
    Washington, DC  United States  20590
  • Project Managers:

    Stone, Bill

  • Performing Organizations:

    Iowa State University, Ames

    Ames, IA  United States  50011
  • Start Date: 20091001
  • Expected Completion Date: 0
  • Actual Completion Date: 20130731
  • Source Data: RiP Project 29793

Subject/Index Terms

Filing Info

  • Accession Number: 01528649
  • Record Type: Research project
  • Source Agency: Federal Highway Administration
  • Contract Numbers: RD 09 28, TPF-5(213)
  • Files: RiP
  • Created Date: Jun 22 2014 1:00AM