Evaluation of a Rubber Modified Asphalt Mixture at the 2009 NCAT Test Track

While some state agencies look at using recycled products in asphalt mixtures as a means to become more environmentally-friendly, other states and contractors are investigating materials like Ground Tire Rubber (GTR) as a substitute for polymer modification in asphalt binders. The Missouri Department of Transportation recently built two test sections at the National Center for Asphalt Technology (NCAT) Pavement Test Track to validate the use of GTR as a substitute for Styrene-Butadiene-Styrene (SBS) in asphalt mixtures. The Test Track sections were monitored weekly over a two year period for field performance including rutting, smoothness, and texture using an inertial profiler. Monthly crack maps were also developed to assess mixture cracking. Additionally, each mixture was sampled for laboratory characterization in terms of stiffness, rutting, cracking, and moisture susceptibility using standard laboratory procedures. Based on the gathered data, GTR mixtures can be used as an adequate polymer substitute without sacrificing asphalt mixture performance.

• Record URL:
  http://www.crcnetbase.com/doi/pdf/10.1201/b13000-28
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/9780415621380
• Corporate Authors:

  CRC Press

  6000 Broken Sound Parkway, NW, Suite 300
  Boca Raton, FL  United States  33487
• Authors:
  • Willis, J R
  • Powell, R B
• Conference:
  • 4th International Conference on Accelerated Pavement Testing
  • Location: Davis CA, United States
  • Date: 2012-9-19 to 2012-9-21
• Publication Date: 2012

Language

• English

Media Info

• Media Type: Digital/other
• Features: Figures; References; Tables;
• Pagination: pp 191-200
• Monograph Title: Advances in Pavement Design through Full-scale Accelerated Pavement Testing

Subject/Index Terms

• TRT Terms: Asphalt mixtures; Bituminous binders; Pavement design; Pavement performance; Tires
• Subject Areas: Highways; Pavements; I22: Design of Pavements, Railways and Guideways;

Filing Info

• Accession Number: 01450946
• Record Type: Publication
• Source Agency: UC Berkeley Transportation Library
• ISBN: 9780415621380
• Files: TRIS
• Created Date: Nov 2 2012 9:13AM