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Effect of Bentonite as Partial Replacement of Cement on Residual Properties of Concrete Exposed to Elevated Temperatures

Author

Listed:
  • Sardar Farhan Mushtaq

    (NUST Institute of Civil Engineering (NICE), School of Civil and Environmental Engineering (SCEE), National University of Sciences and Technology (NUST), Sector H-12, Islamabad 44000, Pakistan)

  • Ather Ali

    (NUST Institute of Civil Engineering (NICE), School of Civil and Environmental Engineering (SCEE), National University of Sciences and Technology (NUST), Sector H-12, Islamabad 44000, Pakistan)

  • Rao Arsalan Khushnood

    (NUST Institute of Civil Engineering (NICE), School of Civil and Environmental Engineering (SCEE), National University of Sciences and Technology (NUST), Sector H-12, Islamabad 44000, Pakistan)

  • Rana Faisal Tufail

    (Department of Civil Engineering, COMSATS University Islamabad, Wah Campus, Wah 47040, Pakistan)

  • Ali Majdi

    (Department of Building and Construction Techniques, Al-Mustaqbal University College, Hillah 51001, Iraq)

  • Adnan Nawaz

    (Department of Civil Engineering, COMSATS University Islamabad, Wah Campus, Wah 47040, Pakistan)

  • Serdar Durdyev

    (Department of Engineering and Architectural Studies, Ara Institute of Canterbury, 130 Madras Street, Christchurch 8011, New Zealand)

  • Dumitru Doru Burduhos Nergis

    (Faculty of Materials Science and Engineering, Gheorghe Asachi Technical University of Iasi, 700050 Iasi, Romania)

  • Jawad Ahmad

    (Department of Civil Engineering, Swedish College of Engineering, Wah Cantt, Wah 47040, Pakistan)

Abstract

This study investigated the effect of elevated temperature on the mechanical, physical and durability properties of normal strength concrete, modified with bentonite. The bentonite concrete was cast by substituting cement with bentonite content in proportions of 5, 10 and 15% by weight. Mechanical tests were conducted (compressive and splitting tensile strength). Furthermore, durability performance (mass loss and sorptivity) and specimen properties (elastic modulus, stress–strain behaviour, ductility and energy absorption) were evaluated and discussed. The results demonstrated that samples incorporating bentonite showed better fire endurance than the control mix. The inclusion of bentonite in concrete decreased the mass loss of the specimens exposed to high temperatures. The performance of bentonite concrete was better in terms of mechanical behaviour (compressive and tensile strength) than that of conventional concrete, and it had high resistance to water absorption. Higher ductility and energy absorption capacity were observed for the concrete specimen containing bentonite than its counterpart control specimens.

Suggested Citation

  • Sardar Farhan Mushtaq & Ather Ali & Rao Arsalan Khushnood & Rana Faisal Tufail & Ali Majdi & Adnan Nawaz & Serdar Durdyev & Dumitru Doru Burduhos Nergis & Jawad Ahmad, 2022. "Effect of Bentonite as Partial Replacement of Cement on Residual Properties of Concrete Exposed to Elevated Temperatures," Sustainability, MDPI, vol. 14(18), pages 1-17, September.
    • Handle: RePEc:gam:jsusta:v:14:y:2022:i:18:p:11580-:d:915961
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    Cited by:

    1. Ceyhun Aksoylu & Yasin Onuralp Özkılıç & Marijana Hadzima-Nyarko & Ercan Işık & Musa Hakan Arslan, 2022. "Investigation on Improvement in Shear Performance of Reinforced-Concrete Beams Produced with Recycled Steel Wires from Waste Tires," Sustainability, MDPI, vol. 14(20), pages 1-16, October.

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