Soluble pozzolanic materials from coal bottom ash as cement replacement material
Nowadays, intensive research in production of highly reactive pozzolanic materials from industrial waste to replace cement is crucial. This action expected to increase industrial waste recycling rate and at the same time reduce extraction of non-renewable resources of limestone. Unique characteri...
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| Format: | Conference or Workshop Item |
| Language: | en |
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2021
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| Online Access: | http://eprints.uthm.edu.my/1872/1/P12610_0314d0b3f68a0b5780fb5db64288eb41.pdf http://eprints.uthm.edu.my/1872/ https://doi.org/10.4028/www.scientific.net/KEM.879.68 |
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| author | Embong, Rahimah Kusbiantoro, Andri Abd Wahab, Azrina Muthusamy, Khairunisa |
| author_facet | Embong, Rahimah Kusbiantoro, Andri Abd Wahab, Azrina Muthusamy, Khairunisa |
| author_sort | Embong, Rahimah |
| building | UTHM Library |
| collection | Institutional Repository |
| content_provider | Universiti Tun Hussein Onn Malaysia |
| content_source | UTHM Institutional Repository |
| continent | Asia |
| country | Malaysia |
| description | Nowadays, intensive research in production of highly reactive pozzolanic materials from
industrial waste to replace cement is crucial. This action expected to increase industrial waste
recycling rate and at the same time reduce extraction of non-renewable resources of limestone.
Unique characteristics of coal bottom ash as one of the industrial based pozzolan gained less
popularity because of its low reactivity and heavy metal leaching due to conventional method used
for disposal. Therefore, an alternative approach was deliberated in this research to utilize coal
bottom ash into soluble form and enhance the quality of bottom ash as pozzolanic material. Coal
bottom ash after the acid washing with optimum parameter was then undergoes solution-gelification
process with various alkali based solution for 2 hours soaking durations. The conversion of coal
bottom ash into soluble silica in this study demonstrates good pozzolanic performance in a state of
siliceous gel pozzolan compared to the raw ones. 5% of cement replacement by soluble silica from
CBA shows good strength development from early and later age. The physical dispersion effect is
the cumulative effect of enhancement cement hydration due to the availability of increased the
nucleation sites on soluble silica particles. |
| format | Conference or Workshop Item |
| id | my.uthm.eprints-1872 |
| institution | Universiti Tun Hussein Onn Malaysia |
| language | en |
| publishDate | 2021 |
| record_format | eprints |
| spelling | my.uthm.eprints-18722021-10-20T07:23:56Z http://eprints.uthm.edu.my/1872/ Soluble pozzolanic materials from coal bottom ash as cement replacement material Embong, Rahimah Kusbiantoro, Andri Abd Wahab, Azrina Muthusamy, Khairunisa TA401-492 Materials of engineering and construction. Mechanics of materials Nowadays, intensive research in production of highly reactive pozzolanic materials from industrial waste to replace cement is crucial. This action expected to increase industrial waste recycling rate and at the same time reduce extraction of non-renewable resources of limestone. Unique characteristics of coal bottom ash as one of the industrial based pozzolan gained less popularity because of its low reactivity and heavy metal leaching due to conventional method used for disposal. Therefore, an alternative approach was deliberated in this research to utilize coal bottom ash into soluble form and enhance the quality of bottom ash as pozzolanic material. Coal bottom ash after the acid washing with optimum parameter was then undergoes solution-gelification process with various alkali based solution for 2 hours soaking durations. The conversion of coal bottom ash into soluble silica in this study demonstrates good pozzolanic performance in a state of siliceous gel pozzolan compared to the raw ones. 5% of cement replacement by soluble silica from CBA shows good strength development from early and later age. The physical dispersion effect is the cumulative effect of enhancement cement hydration due to the availability of increased the nucleation sites on soluble silica particles. 2021 Conference or Workshop Item PeerReviewed text en http://eprints.uthm.edu.my/1872/1/P12610_0314d0b3f68a0b5780fb5db64288eb41.pdf Embong, Rahimah and Kusbiantoro, Andri and Abd Wahab, Azrina and Muthusamy, Khairunisa (2021) Soluble pozzolanic materials from coal bottom ash as cement replacement material. In: Key Engineering Materials. https://doi.org/10.4028/www.scientific.net/KEM.879.68 |
| spellingShingle | TA401-492 Materials of engineering and construction. Mechanics of materials Embong, Rahimah Kusbiantoro, Andri Abd Wahab, Azrina Muthusamy, Khairunisa Soluble pozzolanic materials from coal bottom ash as cement replacement material |
| title | Soluble pozzolanic materials from coal bottom ash as cement
replacement material |
| title_full | Soluble pozzolanic materials from coal bottom ash as cement
replacement material |
| title_fullStr | Soluble pozzolanic materials from coal bottom ash as cement
replacement material |
| title_full_unstemmed | Soluble pozzolanic materials from coal bottom ash as cement
replacement material |
| title_short | Soluble pozzolanic materials from coal bottom ash as cement
replacement material |
| title_sort | soluble pozzolanic materials from coal bottom ash as cement
replacement material |
| topic | TA401-492 Materials of engineering and construction. Mechanics of materials |
| url | http://eprints.uthm.edu.my/1872/1/P12610_0314d0b3f68a0b5780fb5db64288eb41.pdf http://eprints.uthm.edu.my/1872/ https://doi.org/10.4028/www.scientific.net/KEM.879.68 |
| url_provider | http://eprints.uthm.edu.my/ |