Effect of Rejuvenator on Performance Properties of HMA Mixtures with High RAP and RAS Contents

Recycled binder in reclaimed asphalt pavement/reclaimed asphalt shingles (RAP/RAS) hot mix asphalt (HMA) mixtures can be subject to cracking and stiffness. This can lead to pavement maintenance and rehabilitation issues. Rejuvenators can be used to enhance the performance of these mixes making them more stable for use by transportation agencies. This report examines the effect on pavement performance of adding a rejuvenator to HMA mixtures with high RAP/RAS content. Performance properties of various mixtures were tested. Laboratory tests included moisture resistance, tensile strength, mixture stiffness, cracking resistance, and rutting resistance. In addition a cost comparison is provided.

• Record URL:
  http://www.ncat.us/files/reports/2012/rep12-05.pdf
• 
• Corporate Authors:

  National Center for Asphalt Technology

  Auburn University, 277 Technology Parkway
  Auburn, AL  United States  36830

  National Asphalt Pavement Association Research and Education Foundation

  5100 Forbes Boulevard
  Lanham, MD  United States  20706-4413
• Authors:
  • Tran, Nam
  • Taylor, Adam
  • Willis, Richard
• Publication Date: 2012-6

Language

• English

Media Info

• Media Type: Web
• Features: Appendices; Figures; References; Tables;
• Pagination: 75p

Subject/Index Terms

• TRT Terms: Costs; Cracking of asphalt concrete pavements; Hot mix asphalt; Laboratory tests; Mix design; Pavement performance; Reclaimed asphalt pavements; Recycled materials; Rejuvenators; Rutting; Stiffness tests; Tension tests
• Subject Areas: Highways; Materials; Pavements; I31: Bituminous Binders and Materials;

Filing Info

• Accession Number: 01482463
• Record Type: Publication
• Report/Paper Numbers: 12-05
• Files: TRIS
• Created Date: May 28 2013 9:31AM