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Mechanical and Durability Properties of Self-Compacted Concrete Incorporating Waste Crumb Rubber as Sand Replacement: A Review

Author

Listed:
  • Yarivan J. Zrar

    (Department of Civil Engineering, Faculty of Engineering, Soran University, Soran 44008, Kurdistan Region, Iraq)

  • Khaleel H. Younis

    (Department of Surveying and Road Construction, Erbil Technology College, Erbil Polytechnic University, Erbil 44001, Kurdistan Region, Iraq
    Civil Engineering Department, Tishk International University, Erbil 44001, Kurdistan Region, Iraq)

Abstract

The lack of disposal facilities for waste tires from various vehicles is a major environmental and economic problem. Crumb rubber (CR) generated from waste tires can be used to partially replace fine natural aggregates in self-compacted concrete (SCC), lowering sand usage and protecting raw material resources. The main objective of this study is to summarize the influence of CR as a partial replacement for sand on the behavior of SCC. For this aim, 42 papers were selected out of 89 that were relevant to the objective of this study. The mechanical properties, i.e., compressive strength, flexural strength, splitting tensile strength, modulus of elasticity, and bond strength, as well as the ultrasonic pulse velocity (UPV), were all reduced by the insertion of CR into SCC mixtures. With the addition of CR, fracture energy decreases, but the ductility of concrete in terms of characteristic length can be enhanced. Meanwhile, replacing sand with CR can also reduce the durability performance of SCC, such as sorptivity, free-drying shrinkage, rapid chloride permeability, and depth of chloride penetration, except for the electrical resistivity, depth of carbonation, and impact resistance, which exhibit a positive tendency. Based on the results of the reviewed articles, predicted reductions in the strength of the SCC incorporating CR were also recommended. Moreover, the results of the reviewed studies were employed to develop empirical models that demonstrate the relations between various mechanical properties.

Suggested Citation

  • Yarivan J. Zrar & Khaleel H. Younis, 2022. "Mechanical and Durability Properties of Self-Compacted Concrete Incorporating Waste Crumb Rubber as Sand Replacement: A Review," Sustainability, MDPI, vol. 14(18), pages 1-39, September.
    • Handle: RePEc:gam:jsusta:v:14:y:2022:i:18:p:11301-:d:910525
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    References listed on IDEAS

    as
    1. Salmabanu Luhar & Ismail Luhar & Demetris Nicolaides & Rajesh Gupta, 2021. "Durability Performance Evaluation of Rubberized Geopolymer Concrete," Sustainability, MDPI, vol. 13(11), pages 1-26, May.
    2. Wesam Salah Alaloul & Muhammad Ali Musarat & Sani Haruna & Kevin Law & Bassam A. Tayeh & Waqas Rafiq & Saba Ayub, 2021. "Mechanical Properties of Silica Fume Modified High-Volume Fly Ash Rubberized Self-Compacting Concrete," Sustainability, MDPI, vol. 13(10), pages 1-14, May.
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