Evaluation of high RAP-WMA asphalt rubber mixtures

This study focused on evaluating the stiffness, fatigue cracking, reflective cracking, rutting, moisture damage, and workability of asphalt rubber (AR) surface mixtures with reclaimed asphalt pavements (RAP) contents up to 40% with and without a warm mix asphalt (WMA) technology. RAP increased the stiffness of the mixtures; however, WMA mitigated that increase. The addition of RAP had an adverse effect on the resistance to fatigue and reflective cracking of the mixtures. This effect was magnified with the use of WMA regardless if RAP was incorporated in the mixture. Therefore, it was recommended to further investigate the proper drop in temperatures for AR mixtures that incorporate WMA. All mixtures passed the rutting and moisture damage test. The WMA technology improved the workability of the mixtures.

• Record URL:
  https://doi.org/10.1080/14680629.2013.812846
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/14680629
• Supplemental Notes:
  • Copyright Taylor and Francis Group, LLC 2013
• Authors:
  • Mogawer, Walaa
  • Austerman, Alexander
  • Mohammad, Louay
  • Kutay, M Emin
• Conference:
  • 2013 Association of Asphalt Paving Technologists Annual Meeting
  • Location: Denver Colorado, United States
  • Date: 2013-4-7 to 2013-4-10
• Publication Date: 2013-8

Language

• English

Media Info

• Media Type: Digital/other
• Features: References;
• Pagination: pp 129-147
• Serial:
  • Road Materials and Pavement Design
  • Volume: 14
  • Issue Number: sup2
  • Publisher: Taylor & Francis
  • ISSN: 1468-0629
  • EISSN: 2164-7402
  • Serial URL: http://www.tandfonline.com/loi/trmp20

Subject/Index Terms

• TRT Terms: Asphalt rubber; Fatigue cracking; Moisture damage; Reclaimed asphalt pavements; Reflection cracking; Rutting; Stiffness; Warm mix paving mixtures; Workability
• Subject Areas: Design; Highways; Materials; Pavements; I22: Design of Pavements, Railways and Guideways; I31: Bituminous Binders and Materials; I33: Other Materials used in Pavement Layers;

Filing Info

• Accession Number: 01494902
• Record Type: Publication
• Files: TRIS
• Created Date: Sep 24 2013 3:01PM