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Potential Use of Rendering Mortar Waste Powder as a Cement Replacement Material: Fresh, Mechanical, Durability and Microstructural Properties

Author

Listed:
  • Aref A. Abadel

    (Department of Civil Engineering, College of Engineering, King Saud University, Riyadh 11421, Saudi Arabia)

  • Mohammed Salah Nasr

    (Technical Institute of Babylon, Al-Furat Al-Awsat Technical University (ATU), Babylon 51015, Iraq)

  • Ali Shubbar

    (School of Civil Engineering and Built Environment, Liverpool John Moores University, Liverpool L3 5UG, UK)

  • Tameem Mohammed Hashim

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

  • Rabin Tuladhar

    (College of Science & Engineering, James Cook University, Townsville, QLD 4811, Australia)

Abstract

The difficulty of decomposing solid waste over time has made it a significant global problem because of its environmental impact and the need for large areas for disposal. Among these residues is the waste of the rendering mortar that is produced (falls to the ground) while applied to wall surfaces. The quantity of these materials may reach 200 to 500 g/m 2 . As a result of local urban development (in Iraq), thousands of tons of these wastes are produced annually. On the other hand, the emission of greenhouse gases in the cement industry has had a great environmental impact. One of the solutions to this problem is to reduce the cement content in the mix by replacing it with less emissive materials. Residues from other industries are considered a relatively ideal option due to their disposal on the one hand and the reduction of harmful emissions of the cement industry on the other hand. Therefore, this research aims to reuse rendering mortar waste powder (RMWP) as a possible alternative to cement in mortar. RMWP replaced the cement in proportions (0, 10, 15, 20, 25, and 30% by weight). The flow rate, flexural and compressive strengths, ultrasonic pulse velocity, bulk density, dynamic modulus of elasticity, electrical resistivity, and water absorption tests of the produced mortar were executed. Microstructural analysis of the produced mortar was also investigated. Results indicated that, for sustainable development, an eco-friendly mortar can be made by replacing cement with RMWP at a rate of 15%, resulting in a 17% decrease in compressive strength while maintaining or improving durability properties. Moreover, the microstructure became denser and more homogeneous in the presence of RMWP.

Suggested Citation

  • Aref A. Abadel & Mohammed Salah Nasr & Ali Shubbar & Tameem Mohammed Hashim & Rabin Tuladhar, 2023. "Potential Use of Rendering Mortar Waste Powder as a Cement Replacement Material: Fresh, Mechanical, Durability and Microstructural Properties," Sustainability, MDPI, vol. 15(15), pages 1-19, July.
    • Handle: RePEc:gam:jsusta:v:15:y:2023:i:15:p:11659-:d:1204823
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    References listed on IDEAS

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    1. Mays A. Hamad & Mohammed Nasr & Ali Shubbar & Zainab Al-Khafaji & Zainab Al Masoodi & Osamah Al-Hashimi & Patryk Kot & Rafid Alkhaddar & Khalid Hashim, 2021. "Production of Ultra-High-Performance Concrete with Low Energy Consumption and Carbon Footprint Using Supplementary Cementitious Materials Instead of Silica Fume: A Review," Energies, MDPI, vol. 14(24), pages 1-26, December.
    2. Mohammed Salah Nasr & Awham Jumah Salman & Rusul Jaber Ghayyib & Ali Shubbar & Shahad Al-Mamoori & Zainab Al-khafaji & Tameem Mohammed Hashim & Zaid Ali Hasan & Monower Sadique, 2023. "Effect of Clay Brick Waste Powder on the Fresh and Hardened Properties of Self-Compacting Concrete: State-of-the-Art and Life Cycle Assessment," Energies, MDPI, vol. 16(12), pages 1-23, June.
    3. Infante Gomes, Ricardo & Brazão Farinha, Catarina & Veiga, Rosário & de Brito, Jorge & Faria, Paulina & Bastos, David, 2021. "CO2 sequestration by construction and demolition waste aggregates and effect on mortars and concrete performance - An overview," Renewable and Sustainable Energy Reviews, Elsevier, vol. 152(C).
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    Cited by:

    1. Arnas Majumder & Flavio Stochino & Andrea Frattolillo & Monica Valdes & Gianluca Gatto & Enzo Martinelli, 2024. "Sustainable Retrofitting Solutions: Evaluating the Performance of Jute Fiber Nets and Composite Mortar in Natural Fiber Textile Reinforced Mortars," Sustainability, MDPI, vol. 16(3), pages 1-18, January.

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