Effect of using micropalm oil fuel ash as partial replacement of cement on the properties of cement mortar
This study investigates the effects of micropalm oil fuel ash (mPOFA) on compressive strength and pore structure of cement mortar. Various experimental techniques, such as compression test, isothermal calorimetry, mercury intrusion porosimetry, and X-ray diffraction, are performed to figure out the...
| Main Authors: | , , , , |
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| Format: | Journal Article |
| Published: |
Hindawi Publishing Corporation
2018
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| Online Access: | http://hdl.handle.net/20.500.11937/74197 |
| _version_ | 1848763206130991104 |
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| author | Wi, K. Lee, H. Lim, S. Ismail, Mohamed Hussin, M. |
| author_facet | Wi, K. Lee, H. Lim, S. Ismail, Mohamed Hussin, M. |
| author_sort | Wi, K. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | This study investigates the effects of micropalm oil fuel ash (mPOFA) on compressive strength and pore structure of cement mortar. Various experimental techniques, such as compression test, isothermal calorimetry, mercury intrusion porosimetry, and X-ray diffraction, are performed to figure out the effect of using mPOFA as partial replacement of cement on the hydration of cement and determine its optimal replacement level to increase mechanical property of the mortar specimens. 10 wt.% of cement replacement with mPOFA is found to give the highest level of compressive strength, achieving a 23% increase over the control specimens after 3 days of curing. High K2O contents in mPOFA stimulate C3S in cement to form C-S-H at early ages, and high surface area of mPOFA acts as a nucleus to develop C-S-H. Also, small mPOFA particles and C-S-H formed by pozzolanic reaction fill the pores and lead to reduction in large capillary pores. In XRD analysis, a decrease in Ca(OH)2 and SiO2 contents with age confirmed a high pozzolanic reactivity of mPOFA. |
| first_indexed | 2025-11-14T10:59:46Z |
| format | Journal Article |
| id | curtin-20.500.11937-74197 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T10:59:46Z |
| publishDate | 2018 |
| publisher | Hindawi Publishing Corporation |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-741972021-01-08T07:54:27Z Effect of using micropalm oil fuel ash as partial replacement of cement on the properties of cement mortar Wi, K. Lee, H. Lim, S. Ismail, Mohamed Hussin, M. This study investigates the effects of micropalm oil fuel ash (mPOFA) on compressive strength and pore structure of cement mortar. Various experimental techniques, such as compression test, isothermal calorimetry, mercury intrusion porosimetry, and X-ray diffraction, are performed to figure out the effect of using mPOFA as partial replacement of cement on the hydration of cement and determine its optimal replacement level to increase mechanical property of the mortar specimens. 10 wt.% of cement replacement with mPOFA is found to give the highest level of compressive strength, achieving a 23% increase over the control specimens after 3 days of curing. High K2O contents in mPOFA stimulate C3S in cement to form C-S-H at early ages, and high surface area of mPOFA acts as a nucleus to develop C-S-H. Also, small mPOFA particles and C-S-H formed by pozzolanic reaction fill the pores and lead to reduction in large capillary pores. In XRD analysis, a decrease in Ca(OH)2 and SiO2 contents with age confirmed a high pozzolanic reactivity of mPOFA. 2018 Journal Article http://hdl.handle.net/20.500.11937/74197 10.1155/2018/5164030 http://creativecommons.org/licenses/by/4.0/ Hindawi Publishing Corporation fulltext |
| spellingShingle | Wi, K. Lee, H. Lim, S. Ismail, Mohamed Hussin, M. Effect of using micropalm oil fuel ash as partial replacement of cement on the properties of cement mortar |
| title | Effect of using micropalm oil fuel ash as partial replacement of cement on the properties of cement mortar |
| title_full | Effect of using micropalm oil fuel ash as partial replacement of cement on the properties of cement mortar |
| title_fullStr | Effect of using micropalm oil fuel ash as partial replacement of cement on the properties of cement mortar |
| title_full_unstemmed | Effect of using micropalm oil fuel ash as partial replacement of cement on the properties of cement mortar |
| title_short | Effect of using micropalm oil fuel ash as partial replacement of cement on the properties of cement mortar |
| title_sort | effect of using micropalm oil fuel ash as partial replacement of cement on the properties of cement mortar |
| url | http://hdl.handle.net/20.500.11937/74197 |