Toughness, Tenacity and Maximum Initial Strength of Rubber Modified Asphalt Binders

Authors

  • K. Jadidi Howard R. Hughes College of Engineering, University of Nevada, USA
  • M. Khalili Howard R. Hughes College of Engineering, University of Nevada, USA
  • M. Karakouzian Howard R. Hughes College of Engineering, University of Nevada, USA
  • S. Amirkhanian College of Engineering, University of Alabama, USA
Volume: 9 | Issue: 1 | Pages: 3765-3769 | February 2019 | https://doi.org/10.48084/etasr.2526

Abstract

The toughness and tenacity test method, which was developed in the 1980s, is popular for evaluating a polymer-modified binder. Several states like Nevada require performing this test to evaluate non-modified binder samples, as well as other types of modified binders. In this regard, a toughness and tenacity test was performed on rubber-modified samples produced from virgin binder PG58-28, PG64-16 and AC-20. In order to take the rubber size, type and content into account, two rubber sizes, mesh #20 and #40, two rubber types, ambient and cryogenic, and three rubber contents, 10%, 15%, and 20% were produced and tested. The results then were compared with polymer-modified and terminally blended rubber-modified samples. The results show improvement in the amount of initial maximum strength, and a decline in the magnitude of elongation, toughness and tenacity for the rubber-modified binder, compared to other types of binders.

Keywords:

rubber binder, ambient, cryogenic, toughness, tenacity

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References

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How to Cite

[1]
K. Jadidi, M. Khalili, M. Karakouzian, and S. Amirkhanian, “Toughness, Tenacity and Maximum Initial Strength of Rubber Modified Asphalt Binders”, Eng. Technol. Appl. Sci. Res., vol. 9, no. 1, pp. 3765–3769, Feb. 2019.

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