Evaluation of Crumb Tire Rubber-Modified Hot Mix Asphalt Concrete in Sudan

Scrap tires form a major part of the world's solid waste management problem. In recent years, the waste tire problem has become so acute that there is an urgent need to find an optimum and effective way to use scrap tires in asphalt mixtures. This paper investigates used tire rubber as an asphalt modifier and its potential prospects to enhance bitumen physical and asphalt mixture properties in a hot climate like Sudan. Bitumen grade 60/70 was blended with a different percentage of crumb used tire rubber. Engineering and physical properties of bitumen and bitumen/rubber mortar were evaluated. Marshall Mix was designed and used to evaluate the bituminous mixtures properties. Extensive laboratory studies and tests have been done to evaluate the effect of crumb tire rubber on bitumen and bituminous mixture concrete. The laboratory results indicated that crumb rubber modifier provides better engineering properties in terms of rheological properties, penetration, softening point, specific gravity, and flash and fire point tests. They further indicated that crumb rubber modifier decreases the stability and density, increases the flow, and slightly increases the air voids and the voids of mineral aggregate. The study recommended that further studies should be conducted in mixing time and temperatures as well as a field test on rubberized constructed section.

• Record URL:
  • https://doi.org/10.1061/9780784412671.0021
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/9780784412671
• Supplemental Notes:
  • © 2013 American Society of Civil Engineers.
• Corporate Authors:

  American Society of Civil Engineers

  1801 Alexander Bell Drive
  Reston, VA  United States  20191-4400
• Authors:
  • Osman, S A
  • Adam, A A M
• Conference:
  • Second International Conference on Sustainable Construction Materials: Design, Performance, and Application
  • Location: Wuhan , China
  • Date: 2012-10-18 to 2012-10-22
• Publication Date: 2013

Language

• English

Media Info

• Media Type: Web
• Pagination: pp 235-248
• Monograph Title: Sustainable Construction Materials 2012

Subject/Index Terms

• TRT Terms: Crumb rubber; Hot mix asphalt; Laboratory tests; Mix design; Properties of materials
• Uncontrolled Terms: Scrap tires
• Geographic Terms: Sudan
• Subject Areas: Highways; Materials; I31: Bituminous Binders and Materials;

Filing Info

• Accession Number: 01524904
• Record Type: Publication
• ISBN: 9780784412671
• Files: TRIS, ASCE
• Created Date: May 12 2014 1:08PM