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Performance Analysis of Asphalt Mixtures Modified with Ground Tire Rubber Modifiers and Recycled Materials

Author

Listed:
  • Punyaslok Rath

    (Department of Civil and Environmental Engineering, University of Missouri, Columbia, MO 65211, USA)

  • Joshua E. Love

    (Department of Industrial and Enterprise Systems Engineering, University of Illinois, Urbana-Champaign, IL 61801, USA)

  • William G. Buttlar

    (Department of Civil and Environmental Engineering, University of Missouri, Columbia, MO 65211, USA)

  • Henrique Reis

    (Department of Industrial and Enterprise Systems Engineering, University of Illinois, Urbana-Champaign, IL 61801, USA)

Abstract

The usage of Ground Tire Rubber (GTR) in asphalt pavements has gained renewed interest due to its potential sustainability, economic, and performance benefits. This study focuses on asphalt mixtures designed with three different rubber modifier products including (1) a terminal-blend GTR, (2) a dry-process, chemically processed rubber product, and (3) a terminal-blend rubber-polymer hybrid product. The modifications were incorporated into Illinois Tollway’s approved Stone Matrix Asphalt (SMA) designs using (1) a base binder (PG 58-28), (2) a softer binder (PG 46-34), and (3) a softer binder with higher recycled content. Disk-shaped Compact Tension (DC(T)) test, Hamburg Wheel Tracking Test (HWTT) and Acoustic Emission (AE) tests were performed to characterize the mixtures. The fracture energy for most mixtures met the stringent criteria of 690 J/m 2 and the rut depths measured were less than 6 mm at 20,000 wheel passes. A Hamburg-DC(T) plot suggests that higher amounts of RAP/RAS (RAP: Reclaimed Asphalt Pavement; RAS: Reusable Asphalt Shingles) can be successfully used if a suitably soft base binder is employed.

Suggested Citation

  • Punyaslok Rath & Joshua E. Love & William G. Buttlar & Henrique Reis, 2019. "Performance Analysis of Asphalt Mixtures Modified with Ground Tire Rubber Modifiers and Recycled Materials," Sustainability, MDPI, vol. 11(6), pages 1-20, March.
    • Handle: RePEc:gam:jsusta:v:11:y:2019:i:6:p:1792-:d:216915
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    References listed on IDEAS

    as
    1. Jones, D. & Liang, Y. & Harvey, J., 2017. "Performance Based Specifications: Literature Review on Increasing Crumb Rubber Usage by Adding Small Amounts of Crumb Rubber Modifier in Hot Mix Asphalt," Institute of Transportation Studies, Working Paper Series qt9cw18024, Institute of Transportation Studies, UC Davis.
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    Cited by:

    1. Xuedong Guo & Xing Chen & Yingsong Li & Zhun Li & Wei Guo, 2019. "Using Sustainable Oil Shale Waste Powder Treated with Silane Coupling Agent for Enriching the Performance of Asphalt and Asphalt Mixture," Sustainability, MDPI, vol. 11(18), pages 1-23, September.
    2. Fangyuan Gong & Weijie Lin & Zhenkan Chen & Tao Shen & Chichun Hu, 2022. "High-Temperature Rheological Properties of Crumb Rubber Composite Modified Asphalt," Sustainability, MDPI, vol. 14(15), pages 1-18, July.

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