Physical, strength and acoustic properties of lightweight cement composite with preplaced chemically-treated crumb rubber
The valorisation of waste tyre crumb rubber (CR) as a sustainable construction material can alleviate environmental pollution and save natural aggregate consumption. However, its use in cement composite can result in a significant loss of strength due to weak adhesion and the non-uniform dispersion...
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my.um.eprints.447362024-07-11T00:39:25Z http://eprints.um.edu.my/44736/ Physical, strength and acoustic properties of lightweight cement composite with preplaced chemically-treated crumb rubber Shah, Syed Nasir Beddu, Salmia Yap, Soon Poh Putra, Azma Othman, Muhammad Nur Yuen, Choon Wah Mo, Kim Hung TH Building construction TP Chemical technology The valorisation of waste tyre crumb rubber (CR) as a sustainable construction material can alleviate environmental pollution and save natural aggregate consumption. However, its use in cement composite can result in a significant loss of strength due to weak adhesion and the non-uniform dispersion of CR. To compensate this strength loss, this research aims to investigate the innovative incorporation of chemically treated CR via the preplaced aggregate mixing (PM) method in producing a lightweight cement composite. The CR was treated with different chemicals, namely soaking in potassium permanganate and sulphuric acid solutions. The findings reveal a significant improvement in compressive strength (up to 160) and water absorption reduction (from 20 to 175) using the chemically treated CR and PM mixing methods, producing a lightweight cement composite with a density of about 1535 kg/m3. The SEM observation demonstrates the improvement in the CR–paste interface due to the treatment of the CR and the PM mixing methods, and due to the chemical treatment, which improved the wettability of the CR. On the other hand, the sound absorption and noise reduction coefficient of the chemically treated CR lightweight cement composite was almost similar for both the normal mixing (NM) and the PM methods. Overall, the results demonstrate that the CR treatment with sulphuric acid is promising for the PM method to produce a lightweight cement composite. © 2023 The Authors Elsevier 2024-07 Article PeerReviewed Shah, Syed Nasir and Beddu, Salmia and Yap, Soon Poh and Putra, Azma and Othman, Muhammad Nur and Yuen, Choon Wah and Mo, Kim Hung (2024) Physical, strength and acoustic properties of lightweight cement composite with preplaced chemically-treated crumb rubber. Case Studies in Construction Materials, 20. ISSN 2214-5095, DOI https://doi.org/10.1016/j.cscm.2023.e02821 <https://doi.org/10.1016/j.cscm.2023.e02821>. https://doi.org/10.1016/j.cscm.2023.e02821 10.1016/j.cscm.2023.e02821 |
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TH Building construction TP Chemical technology Shah, Syed Nasir Beddu, Salmia Yap, Soon Poh Putra, Azma Othman, Muhammad Nur Yuen, Choon Wah Mo, Kim Hung Physical, strength and acoustic properties of lightweight cement composite with preplaced chemically-treated crumb rubber |
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The valorisation of waste tyre crumb rubber (CR) as a sustainable construction material can alleviate environmental pollution and save natural aggregate consumption. However, its use in cement composite can result in a significant loss of strength due to weak adhesion and the non-uniform dispersion of CR. To compensate this strength loss, this research aims to investigate the innovative incorporation of chemically treated CR via the preplaced aggregate mixing (PM) method in producing a lightweight cement composite. The CR was treated with different chemicals, namely soaking in potassium permanganate and sulphuric acid solutions. The findings reveal a significant improvement in compressive strength (up to 160) and water absorption reduction (from 20 to 175) using the chemically treated CR and PM mixing methods, producing a lightweight cement composite with a density of about 1535 kg/m3. The SEM observation demonstrates the improvement in the CR–paste interface due to the treatment of the CR and the PM mixing methods, and due to the chemical treatment, which improved the wettability of the CR. On the other hand, the sound absorption and noise reduction coefficient of the chemically treated CR lightweight cement composite was almost similar for both the normal mixing (NM) and the PM methods. Overall, the results demonstrate that the CR treatment with sulphuric acid is promising for the PM method to produce a lightweight cement composite. © 2023 The Authors |
format |
Article |
author |
Shah, Syed Nasir Beddu, Salmia Yap, Soon Poh Putra, Azma Othman, Muhammad Nur Yuen, Choon Wah Mo, Kim Hung |
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Shah, Syed Nasir Beddu, Salmia Yap, Soon Poh Putra, Azma Othman, Muhammad Nur Yuen, Choon Wah Mo, Kim Hung |
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Shah, Syed Nasir |
title |
Physical, strength and acoustic properties of lightweight cement composite with preplaced chemically-treated crumb rubber |
title_short |
Physical, strength and acoustic properties of lightweight cement composite with preplaced chemically-treated crumb rubber |
title_full |
Physical, strength and acoustic properties of lightweight cement composite with preplaced chemically-treated crumb rubber |
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Physical, strength and acoustic properties of lightweight cement composite with preplaced chemically-treated crumb rubber |
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Physical, strength and acoustic properties of lightweight cement composite with preplaced chemically-treated crumb rubber |
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physical, strength and acoustic properties of lightweight cement composite with preplaced chemically-treated crumb rubber |
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Elsevier |
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2024 |
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http://eprints.um.edu.my/44736/ https://doi.org/10.1016/j.cscm.2023.e02821 |
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