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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Main Authors:	Abdul Awal, A. S. M., Shehu, I. A., Ismail, Mohammad
Format:	Article
Published:	Elsevier 2015
Subjects:	TA401-492 Materials of engineering and construction. Mechanics of materials
Online Access:	ecohttp:// dx.doi.org/10.1016/j.conbuildmat.2015.09.001 ecohttp:// dx.doi.org/10.1016/j.conbuildmat.2015.09.001

id	uthm-9487
recordtype	eprints
spelling	uthm-94872017-12-04T04:03:27Z 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 TA401-492 Materials of engineering and construction. Mechanics of materials 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 ecohttp:// dx.doi.org/10.1016/j.conbuildmat.2015.09.001 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 . pp. 875-883. ISSN 09500618 http://eprints.uthm.edu.my/9487/
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Tun Hussein Onn Malaysia
building	UTHM Institutional Repository
collection	Online Access
topic	TA401-492 Materials of engineering and construction. Mechanics of materials
spellingShingle	TA401-492 Materials of engineering and construction. Mechanics of materials 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
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.
format	Article
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.
title	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_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_sort	effect of cooling regime on the residual performance of high-volume palm oil fuel ash concrete exposed to high temperatures
publisher	Elsevier
publishDate	2015
url	ecohttp:// dx.doi.org/10.1016/j.conbuildmat.2015.09.001 ecohttp:// dx.doi.org/10.1016/j.conbuildmat.2015.09.001
first_indexed	2018-09-05T11:51:09Z
last_indexed	2018-09-05T11:51:09Z
_version_	1610768207719694336

Effect of cooling regime on the residual performance of high-volume palm oil fuel ash concrete exposed to high temperatures

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