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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Elsevier Ltd
2025
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| author | Shah S.N. Beddu S. Yap S.P. Putra A. Othman M.N. Yuen C.W. Mo K.H. |
| author2 | 57688843700 |
| author_facet | 57688843700 Shah S.N. Beddu S. Yap S.P. Putra A. Othman M.N. Yuen C.W. Mo K.H. |
| author_sort | Shah S.N. |
| building | UNITEN Library |
| collection | Institutional Repository |
| content_provider | Universiti Tenaga Nasional |
| content_source | UNITEN Institutional Repository |
| continent | Asia |
| country | Malaysia |
| description | 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 |
| id | my.uniten.dspace-36509 |
| institution | Universiti Tenaga Nasional |
| publishDate | 2025 |
| publisher | Elsevier Ltd |
| record_format | dspace |
| spelling | my.uniten.dspace-365092025-03-03T15:42:47Z Physical, strength and acoustic properties of lightweight cement composite with preplaced chemically-treated crumb rubber Shah S.N. Beddu S. Yap S.P. Putra A. Othman M.N. Yuen C.W. Mo K.H. 57688843700 55812080500 55637587500 55212663600 57211135801 56033697900 55915884700 Acoustic impedance Acoustic wave absorption Aggregates Cements Composite materials Compressive strength Noise abatement Rubber Sound insulating materials Sustainable development Wetting Acoustics property Aggregate mixing Cement composite Chemical treatments Crumb rubber Crumb rubber, chemical treatment Lightweight Lightweight cement Preplaced aggregates Rubber chemicals Water absorption 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 Final 2025-03-03T07:42:47Z 2025-03-03T07:42:47Z 2024 Article 10.1016/j.cscm.2023.e02821 2-s2.0-85181710288 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85181710288&doi=10.1016%2fj.cscm.2023.e02821&partnerID=40&md5=8381f55c6f4032f4bcd19239ddf71529 https://irepository.uniten.edu.my/handle/123456789/36509 20 e02821 All Open Access; Gold Open Access Elsevier Ltd Scopus |
| spellingShingle | Acoustic impedance Acoustic wave absorption Aggregates Cements Composite materials Compressive strength Noise abatement Rubber Sound insulating materials Sustainable development Wetting Acoustics property Aggregate mixing Cement composite Chemical treatments Crumb rubber Crumb rubber, chemical treatment Lightweight Lightweight cement Preplaced aggregates Rubber chemicals Water absorption Shah S.N. Beddu S. Yap S.P. Putra A. Othman M.N. Yuen C.W. Mo K.H. Physical, strength and acoustic properties of lightweight cement composite with preplaced chemically-treated crumb rubber |
| title | 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 |
| title_fullStr | Physical, strength and acoustic properties of lightweight cement composite with preplaced chemically-treated crumb rubber |
| title_full_unstemmed | 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_sort | physical, strength and acoustic properties of lightweight cement composite with preplaced chemically-treated crumb rubber |
| topic | Acoustic impedance Acoustic wave absorption Aggregates Cements Composite materials Compressive strength Noise abatement Rubber Sound insulating materials Sustainable development Wetting Acoustics property Aggregate mixing Cement composite Chemical treatments Crumb rubber Crumb rubber, chemical treatment Lightweight Lightweight cement Preplaced aggregates Rubber chemicals Water absorption |
| url_provider | http://dspace.uniten.edu.my/ |