Performance of mortar containing ground spent Bleaching earth ash against sulfate attack
Recently, spent bleaching earth ash (SBEA) which is extracted and calcined from spent bleaching earth waste from a palm oil refinery plant, has been used as partial cement replacement. In this study, the SBEA was ground into smaller particle sizes through a grinding process. The effect of unground s...
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| Format: | Article |
| Language: | English English |
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Geomate society
2023
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| Online Access: | https://eprints.ums.edu.my/id/eprint/36812/1/ABSTRACT.pdf https://eprints.ums.edu.my/id/eprint/36812/2/FULL%20TEXT.pdf |
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| author | Raihana Farahiyah Abd Rahman Hidayati Asrah Ahmad Nurfaidhi Rizalman Abdul K. Mirasa |
| author_facet | Raihana Farahiyah Abd Rahman Hidayati Asrah Ahmad Nurfaidhi Rizalman Abdul K. Mirasa |
| author_sort | Raihana Farahiyah Abd Rahman |
| collection | UMS |
| description | Recently, spent bleaching earth ash (SBEA) which is extracted and calcined from spent bleaching earth waste from a palm oil refinery plant, has been used as partial cement replacement. In this study, the SBEA was ground into smaller particle sizes through a grinding process. The effect of unground spent bleaching earth ash (USBEA) and ground-spent bleaching earth ash (GSBEA) on the sulfate attack resistance of mortar was investigated in this study. The characterization of USBEA and GSBEA was determined in terms of particle size, specific surface area, chemical compositions, and microstructural properties. Their effects on pozzolanic activity were determined in terms of the strength activity index. Then, the expansion of the mortar bar containing 40% of USBEA and GSBEA due to sulfate attack was determined to investigate the sulfate attack resistance of mortar containing USBEA and GSBEA. The microstructural changes of mortar against sulfate attack were determined by using x-ray diffraction, scanning electron microscopy and thermogravimetric analysis. Results indicated that the strength activity index (SAI) value of mortar containing 40% of GSBEA was the highest among the specimens. Furthermore, the expansion of mortar bars containing 40% of GSBEA was the lowest, with 0.01% at 6 months. The microstructural results of mortar also confirmed that the incorporation of 40% of GSBEA with the compact microstructure with calcium silicate hydrate (CSH) and less ettringite was found compared to other specimens. This shows that the inclusion of GSBEA enhances the sulfate attack resistance of mortar |
| first_indexed | 2024-03-06T03:25:22Z |
| format | Article |
| id | ums.eprints-36812 |
| institution | Universiti Malaysia Sabah |
| language | English English |
| last_indexed | 2024-03-06T03:25:22Z |
| publishDate | 2023 |
| publisher | Geomate society |
| record_format | dspace |
| spelling | ums.eprints-368122023-09-14T02:25:54Z https://eprints.ums.edu.my/id/eprint/36812/ Performance of mortar containing ground spent Bleaching earth ash against sulfate attack Raihana Farahiyah Abd Rahman Hidayati Asrah Ahmad Nurfaidhi Rizalman Abdul K. Mirasa QR75-99.5 Bacteria TA401-492 Materials of engineering and construction. Mechanics of materials Recently, spent bleaching earth ash (SBEA) which is extracted and calcined from spent bleaching earth waste from a palm oil refinery plant, has been used as partial cement replacement. In this study, the SBEA was ground into smaller particle sizes through a grinding process. The effect of unground spent bleaching earth ash (USBEA) and ground-spent bleaching earth ash (GSBEA) on the sulfate attack resistance of mortar was investigated in this study. The characterization of USBEA and GSBEA was determined in terms of particle size, specific surface area, chemical compositions, and microstructural properties. Their effects on pozzolanic activity were determined in terms of the strength activity index. Then, the expansion of the mortar bar containing 40% of USBEA and GSBEA due to sulfate attack was determined to investigate the sulfate attack resistance of mortar containing USBEA and GSBEA. The microstructural changes of mortar against sulfate attack were determined by using x-ray diffraction, scanning electron microscopy and thermogravimetric analysis. Results indicated that the strength activity index (SAI) value of mortar containing 40% of GSBEA was the highest among the specimens. Furthermore, the expansion of mortar bars containing 40% of GSBEA was the lowest, with 0.01% at 6 months. The microstructural results of mortar also confirmed that the incorporation of 40% of GSBEA with the compact microstructure with calcium silicate hydrate (CSH) and less ettringite was found compared to other specimens. This shows that the inclusion of GSBEA enhances the sulfate attack resistance of mortar Geomate society 2023 Article NonPeerReviewed text en https://eprints.ums.edu.my/id/eprint/36812/1/ABSTRACT.pdf text en https://eprints.ums.edu.my/id/eprint/36812/2/FULL%20TEXT.pdf Raihana Farahiyah Abd Rahman and Hidayati Asrah and Ahmad Nurfaidhi Rizalman and Abdul K. Mirasa (2023) Performance of mortar containing ground spent Bleaching earth ash against sulfate attack. International Journal of GEOMATE, 25. pp. 1-8. ISSN 2186-2982 https://doi.org/10.21660/2023.108.3622 |
| spellingShingle | QR75-99.5 Bacteria TA401-492 Materials of engineering and construction. Mechanics of materials Raihana Farahiyah Abd Rahman Hidayati Asrah Ahmad Nurfaidhi Rizalman Abdul K. Mirasa Performance of mortar containing ground spent Bleaching earth ash against sulfate attack |
| title | Performance of mortar containing ground spent Bleaching earth ash against sulfate attack |
| title_full | Performance of mortar containing ground spent Bleaching earth ash against sulfate attack |
| title_fullStr | Performance of mortar containing ground spent Bleaching earth ash against sulfate attack |
| title_full_unstemmed | Performance of mortar containing ground spent Bleaching earth ash against sulfate attack |
| title_short | Performance of mortar containing ground spent Bleaching earth ash against sulfate attack |
| title_sort | performance of mortar containing ground spent bleaching earth ash against sulfate attack |
| topic | QR75-99.5 Bacteria TA401-492 Materials of engineering and construction. Mechanics of materials |
| url | https://eprints.ums.edu.my/id/eprint/36812/1/ABSTRACT.pdf https://eprints.ums.edu.my/id/eprint/36812/2/FULL%20TEXT.pdf |
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