Rice husk and coir fibers as sustainable and green reinforcements for high performance gypsum composites
Reinforcing gypsum with coir and rice husk enhances the flexural properties, acoustic and thermal insulation and resistance to environmental degradation. Coir and rice husks are agricultural coproducts available in large quantities at low cost and are renewable and sustainable source. In addition, c...
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| Format: | Article |
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Elsevier Ltd
2023
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| _version_ | 1811132337921982464 |
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| author | Aramwit, Pornanong Chin, Desmond Daniel Vui Sheng Moorthy, Goutam Krishna Guna, Vijaykumar Reddy, Narendra |
| author_facet | Aramwit, Pornanong Chin, Desmond Daniel Vui Sheng Moorthy, Goutam Krishna Guna, Vijaykumar Reddy, Narendra |
| author_sort | Aramwit, Pornanong |
| collection | ePrints |
| description | Reinforcing gypsum with coir and rice husk enhances the flexural properties, acoustic and thermal insulation and resistance to environmental degradation. Coir and rice husks are agricultural coproducts available in large quantities at low cost and are renewable and sustainable source. In addition, coir provides excellent strength increase and rice husks have low density and good thermal resistance. In this study, rice husk and coir were used as reinforcement for gypsum as individual components and also as blends. Up to 30 % of reinforcement was possible with enhanced properties. Compared to pure gypsum, up to 187 % increase in flexural strength, reduced moisture absorption and excellent thermal resistance were achieved. Highest flexural strength of 1.5 MPa was obtained when 10 % rice husk was added compared to highest strength of 5.6 MPa when 30 % coir fibers were added into gypsum. An equal proportion of 50 % ricehusk and 50 % coir fibers provided the highest flexural strength for the hybrid composites. Addition of ricehusk and coir also improved the acoustic resistance particularly between 2500 and 4000 Hz whereas there was no major difference in the thermal conductivity of the samples with and without the reinforcement. The extent of increase in properties could be controlled by varying the proportion of ricehusk and coir in gypsum ceiling tiles. Developing hybrid composites particularly in equal proportion of ricehusk and coir was found to be better in terms of improving the performance of gypsum. Being byproducts of major food crops, ricehusk and coir provide sustainable and renewable source for developing composites. Reinforcing gypsum with ricehusk and/or coir will also assist in decreasing the environmental burden and increasing the sustainability of buildings. |
| first_indexed | 2024-09-24T00:02:13Z |
| format | Article |
| id | utm.eprints-106436 |
| institution | Universiti Teknologi Malaysia - ePrints |
| last_indexed | 2024-09-24T00:02:13Z |
| publishDate | 2023 |
| publisher | Elsevier Ltd |
| record_format | dspace |
| spelling | utm.eprints-1064362024-06-30T06:34:04Z http://eprints.utm.my/106436/ Rice husk and coir fibers as sustainable and green reinforcements for high performance gypsum composites Aramwit, Pornanong Chin, Desmond Daniel Vui Sheng Moorthy, Goutam Krishna Guna, Vijaykumar Reddy, Narendra TJ Mechanical engineering and machinery Reinforcing gypsum with coir and rice husk enhances the flexural properties, acoustic and thermal insulation and resistance to environmental degradation. Coir and rice husks are agricultural coproducts available in large quantities at low cost and are renewable and sustainable source. In addition, coir provides excellent strength increase and rice husks have low density and good thermal resistance. In this study, rice husk and coir were used as reinforcement for gypsum as individual components and also as blends. Up to 30 % of reinforcement was possible with enhanced properties. Compared to pure gypsum, up to 187 % increase in flexural strength, reduced moisture absorption and excellent thermal resistance were achieved. Highest flexural strength of 1.5 MPa was obtained when 10 % rice husk was added compared to highest strength of 5.6 MPa when 30 % coir fibers were added into gypsum. An equal proportion of 50 % ricehusk and 50 % coir fibers provided the highest flexural strength for the hybrid composites. Addition of ricehusk and coir also improved the acoustic resistance particularly between 2500 and 4000 Hz whereas there was no major difference in the thermal conductivity of the samples with and without the reinforcement. The extent of increase in properties could be controlled by varying the proportion of ricehusk and coir in gypsum ceiling tiles. Developing hybrid composites particularly in equal proportion of ricehusk and coir was found to be better in terms of improving the performance of gypsum. Being byproducts of major food crops, ricehusk and coir provide sustainable and renewable source for developing composites. Reinforcing gypsum with ricehusk and/or coir will also assist in decreasing the environmental burden and increasing the sustainability of buildings. Elsevier Ltd 2023 Article PeerReviewed Aramwit, Pornanong and Chin, Desmond Daniel Vui Sheng and Moorthy, Goutam Krishna and Guna, Vijaykumar and Reddy, Narendra (2023) Rice husk and coir fibers as sustainable and green reinforcements for high performance gypsum composites. Construction and Building Materials, 393 (NA). NA-NA. ISSN 0950-0618 http://dx.doi.org/10.1016/j.conbuildmat.2023.132065 DOI : 10.1016/j.conbuildmat.2023.132065 |
| spellingShingle | TJ Mechanical engineering and machinery Aramwit, Pornanong Chin, Desmond Daniel Vui Sheng Moorthy, Goutam Krishna Guna, Vijaykumar Reddy, Narendra Rice husk and coir fibers as sustainable and green reinforcements for high performance gypsum composites |
| title | Rice husk and coir fibers as sustainable and green reinforcements for high performance gypsum composites |
| title_full | Rice husk and coir fibers as sustainable and green reinforcements for high performance gypsum composites |
| title_fullStr | Rice husk and coir fibers as sustainable and green reinforcements for high performance gypsum composites |
| title_full_unstemmed | Rice husk and coir fibers as sustainable and green reinforcements for high performance gypsum composites |
| title_short | Rice husk and coir fibers as sustainable and green reinforcements for high performance gypsum composites |
| title_sort | rice husk and coir fibers as sustainable and green reinforcements for high performance gypsum composites |
| topic | TJ Mechanical engineering and machinery |
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