Paper Title:
Low Temperature Cracking Evaluation of Asphalt Rubber Mixtures Using Semi-Circular Bending Test
  Abstract

Low temperature cracking is the main distress in asphalt pavements in winter. As asphalt rubber course is increasing, there is no standard method to characterize the resistance to cracking of asphalt rubber mixtures. This paper investigates the use of a Semi Circular Bend (SCB) test as a candidate for a low-temperature cracking specification. Based on the SCB test, this paper presents the findings of a laboratory study that aimed to evaluate the effects of recycled tire rubber on the Low temperature cracking properties of asphalt mixtures. Three mix types, a conventional hot-mix asphalt concrete, a dry process rubber modified asphalt concrete, and a wet process asphalt-rubber asphalt concrete, were included in the investigation. It is found that the asphalt mixtures produced by the wet process showed much better low temperature crack resistance, the binder effect modified by rubber was significant.

  Info
Periodical
Advanced Materials Research (Volumes 243-249)
Edited by
Chaohe Chen, Yong Huang and Guangfan Li
Pages
4201-4206
DOI
10.4028/www.scientific.net/AMR.243-249.4201
Citation
J. H. Liu, "Low Temperature Cracking Evaluation of Asphalt Rubber Mixtures Using Semi-Circular Bending Test", Advanced Materials Research, Vols. 243-249, pp. 4201-4206, 2011
Online since
May 2011
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Price
$32.00
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