Effect of cooling regime on the residual performance of high-volume palm oil fuel ash concrete exposed to high temperatures
This paper presents the experimental findings of a study on the effect of cooling method on the residual performance of concrete containing a high volume of palm oil fuel ash (POFA) exposed to high temperatures. In this study, concrete samples were made in which the ordinary Portland cement was repl...
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| Format: | Article |
| Language: | English |
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Elsevier
2015
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| Online Access: | http://eprints.uthm.edu.my/5365/ http://eprints.uthm.edu.my/5365/1/AJ%202017%20%28775%29.pdf |
| _version_ | 1848888534612574208 |
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| author | Abdul Awal, A.S.M. Shehu, I.A. Ismail, Mohammad |
| author_facet | Abdul Awal, A.S.M. Shehu, I.A. Ismail, Mohammad |
| author_sort | Abdul Awal, A.S.M. |
| building | UTHM Institutional Repository |
| collection | Online Access |
| description | This paper presents the experimental findings of a study on the effect of cooling method on the residual performance of concrete containing a high volume of palm oil fuel ash (POFA) exposed to high temperatures. In this study, concrete samples were made in which the ordinary Portland cement was replaced by 50%, 60% and 70% POFA. The test specimens were then thermally treated to elevated temperatures of 200, 400, 600 and 800 �C in an electric furnace for a period of 1 h. The specimens were cured by air cooling or water cooling and examined for ultrasonic pulse velocity and changes in weight and residual compressive strength. At higher temperatures, the reduction in the ultrasonic pulse velocity of concrete was higher for all of the mixes. Along with the loss of weight, the residual compressive strength of concrete was also reduced. Of the two regimes, the air-cooling system exhibited better performance in recovering the structural properties of concrete containing a high volume of POFA. |
| first_indexed | 2025-11-15T20:11:49Z |
| format | Article |
| id | uthm-5365 |
| institution | Universiti Tun Hussein Onn Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T20:11:49Z |
| publishDate | 2015 |
| publisher | Elsevier |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | uthm-53652022-01-09T04:56:54Z http://eprints.uthm.edu.my/5365/ Effect of cooling regime on the residual performance of high-volume palm oil fuel ash concrete exposed to high temperatures Abdul Awal, A.S.M. Shehu, I.A. Ismail, Mohammad TH1000-1725 Systems of building construction. Including fireproof construction, concrete construction This paper presents the experimental findings of a study on the effect of cooling method on the residual performance of concrete containing a high volume of palm oil fuel ash (POFA) exposed to high temperatures. In this study, concrete samples were made in which the ordinary Portland cement was replaced by 50%, 60% and 70% POFA. The test specimens were then thermally treated to elevated temperatures of 200, 400, 600 and 800 �C in an electric furnace for a period of 1 h. The specimens were cured by air cooling or water cooling and examined for ultrasonic pulse velocity and changes in weight and residual compressive strength. At higher temperatures, the reduction in the ultrasonic pulse velocity of concrete was higher for all of the mixes. Along with the loss of weight, the residual compressive strength of concrete was also reduced. Of the two regimes, the air-cooling system exhibited better performance in recovering the structural properties of concrete containing a high volume of POFA. Elsevier 2015 Article PeerReviewed text en http://eprints.uthm.edu.my/5365/1/AJ%202017%20%28775%29.pdf Abdul Awal, A.S.M. and Shehu, I.A. and Ismail, Mohammad (2015) Effect of cooling regime on the residual performance of high-volume palm oil fuel ash concrete exposed to high temperatures. Construction and Building Materials, 98 (NIL). pp. 875-883. ISSN 0950-0618 http://dx.doi.org/10.1016/j.conbuildmat.2015.09.001 |
| spellingShingle | TH1000-1725 Systems of building construction. Including fireproof construction, concrete construction Abdul Awal, A.S.M. Shehu, I.A. Ismail, Mohammad Effect of cooling regime on the residual performance of high-volume palm oil fuel ash concrete exposed to high temperatures |
| title | Effect of cooling regime on the residual performance of high-volume palm oil fuel ash concrete exposed to high temperatures |
| title_full | Effect of cooling regime on the residual performance of high-volume palm oil fuel ash concrete exposed to high temperatures |
| title_fullStr | Effect of cooling regime on the residual performance of high-volume palm oil fuel ash concrete exposed to high temperatures |
| title_full_unstemmed | Effect of cooling regime on the residual performance of high-volume palm oil fuel ash concrete exposed to high temperatures |
| title_short | Effect of cooling regime on the residual performance of high-volume palm oil fuel ash concrete exposed to high temperatures |
| title_sort | effect of cooling regime on the residual performance of high-volume palm oil fuel ash concrete exposed to high temperatures |
| topic | TH1000-1725 Systems of building construction. Including fireproof construction, concrete construction |
| url | http://eprints.uthm.edu.my/5365/ http://eprints.uthm.edu.my/5365/ http://eprints.uthm.edu.my/5365/1/AJ%202017%20%28775%29.pdf |