Guidelines for the Use of Reclaimed Asphalt Shingles in Asphalt Pavements, 2nd Edition

Each year about 13.2 million tons of waste shingles are generated in the United States both from reroofing activities and manufacturing waste. The asphalt binder, aggregate, and fibers inherent in these shingles has the potential to be reused in new asphalt pavement mixtures, helping to offset the use of virgin materials and keeping the waste out of landfills. While the use of Reclaimed (or Recycled) Asphalt Shingles (RAS) presents environmental and economic benefits, its use also presents challenges, and asphalt mixtures using this material must be properly designed, produced, and constructed to ensure long-term performance. To make the most of the opportunities offered by RAS, it is important to understand the properties of the shingle constituent materials and how they interact and perform when used in asphalt mixtures. To ensure the continued implementation of RAS in asphalt mixtures is successful, it is critical to follow quality-focused guidelines. RAS use guidelines continue to evolve, and this document provides a comprehensive overview of current practices — from the sourcing of RAS through the construction of pavements with mixtures containing RAS. In addition to RAS usage guidelines, a life cycle assessment (LCA) and economic analysis are included to further illustrate the value and sustainability of this practice.

• Record URL:
  http://www.asphaltpavement.org/PDFs/EngineeringPubs/IS136_Guidelines_for_Use_of_RAS_2e-web.pdf
• 
• Corporate Authors:

  National Asphalt Pavement Association (NAPA)

  5100 Forbes Boulevard
  Lanham, Maryland  United States  20706

  Federal Highway Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • Williams, Brett A
  • Willis, J Richard
  • Hansen, Kent R
  • Stanton, Brett
• Publication Date: 2019-3

Language

• English

Media Info

• Media Type: Digital/other
• Edition: Final Report
• Features: Figures; Maps; Photos; References; Tables;
• Pagination: 38p

Subject/Index Terms

• TRT Terms: Asphalt mixtures; Asphalt pavements; Economic analysis; Guidelines; Life cycle analysis; Mix design; Paving; Recycled materials; Shingles; State of the practice
• Subject Areas: Highways; Materials; Pavements;

Filing Info

• Accession Number: 01710533
• Record Type: Publication
• Report/Paper Numbers: Information Series 136
• Contract Numbers: DTFH61-13-H-00027
• Files: TRIS, ATRI, USDOT
• Created Date: Jul 9 2019 11:27AM