Research Article Open Access

Using Crump Rubber (CR) of Scrap Tire in Hot Mix Asphalt Design

Omar Asad Ahmad1
  • 1 Department of Civil Engineering, Faculty of Engineering Technology, Zarqa University, Zarqa, Jordan


Hot Mix Asphalt (HMA) design is one of the most important types of pavement used in highway construction. This research provided a hot mixture design method modifying with Crump Rubber Scrap Tire (CR) in order to develop and determining the optimum additive for hot mix asphalt design. All tests conducted to the raw material including specific gravity, compact test and absorption content to ensuring its quality. In this research, hot mix designed as a stander without any additives and with (4.5, 5, 5.5, 6, 6.5 and 7%) percent of asphalt content. All specimens of each asphalt percent content were tested after 24 h, according to AASHTO. The additives in this research were prepared by two methods (wet process and dry process). The results show that in dry process all additives cause a failure and the segregation was the major reason for failure. In wet process the selected wet process at 5.5% CR by weight of binder content was optimum were its raising the stability value to 65% of original stability in standard mix, which lead to decreasing the rutting effects.

American Journal of Applied Sciences
Volume 14 No. 2, 2017, 274-285


Submitted On: 19 December 2015 Published On: 13 February 2017

How to Cite: Ahmad, O. A. (2017). Using Crump Rubber (CR) of Scrap Tire in Hot Mix Asphalt Design. American Journal of Applied Sciences, 14(2), 274-285.

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  • Rubber
  • Design
  • Modifier
  • Hot Asphalt
  • Stability
  • Flow