Thermal behaviour of mixed blended ashes aerated concrete

This research investigated the used of bottom ash and palm oil fuel ash (POFA) from Tanjung Bin Power Plant and Kahang Palm Oil Mill respectively as sand replacement to produce mixed blended ashes aerated concrete. The goal is to determine characterization and thermal behaviour of the product and to...

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Main Author:	Zalani, Rahmah
Format:	Thesis
Language:	English
Published:	2015
Subjects:	TA Engineering (General) Civil engineering (General)
Online Access:	http://eprints.utm.my/id/eprint/78418/1/RahmahZalaniMSPS2015.pdf
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id	my-utm-ep.78418
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spelling	my-utm-ep.784182018-08-26T04:56:30Z Thermal behaviour of mixed blended ashes aerated concrete 2015-09 Zalani, Rahmah TA Engineering (General). Civil engineering (General) This research investigated the used of bottom ash and palm oil fuel ash (POFA) from Tanjung Bin Power Plant and Kahang Palm Oil Mill respectively as sand replacement to produce mixed blended ashes aerated concrete. The goal is to determine characterization and thermal behaviour of the product and to compare the best POFA ratio replacement with existing commercial products. POFA was used as sand replacement at 0%, 10%, 20% and 30% by weight with fixed amount of bottom ash. A small-scale wall structure models was developed to study thermal behaviour of product through conduction and convection mechanism heat transfer for seven sunny days at 24-hour. The result showed that thermal conductivity of P30% achieved 0.48 W/mK, 81% lower than conventional concrete. P30% gave the best insulation result among different POFA ratio replacement with 122 minutes in time lag. As for the comparison with commercial aerated concrete, P30% achieved fastest thermal absorption rate with an hour earlier to reach absorption peak and 50% more in thermal mass. This gave better indoor thermal comfort. P30% also exhibited fastest adiabatic state rate with two hour earlier compared to commercial aerated concrete. Good insulation property also gave better result in lessen Urban Heat Island effect at night. However, the stored heat inside the wall contributed towards hotter indoor temperature compared to commercial aerated concrete. Further study in building design alteration might help in mitigating this drawback such as providing better air circulation with cooling chimney and window. 2015-09 Thesis http://eprints.utm.my/id/eprint/78418/ http://eprints.utm.my/id/eprint/78418/1/RahmahZalaniMSPS2015.pdf application/pdf en public http://dms.library.utm.my:8080/vital/access/manager/Repository/vital:105109 masters Universiti Teknologi Malaysia, School of Graduate Studies School of Graduate Studies
institution	Universiti Teknologi Malaysia
collection	UTM Institutional Repository
language	English
topic	TA Engineering (General) Civil engineering (General)
spellingShingle	TA Engineering (General) Civil engineering (General) Zalani, Rahmah Thermal behaviour of mixed blended ashes aerated concrete
description	This research investigated the used of bottom ash and palm oil fuel ash (POFA) from Tanjung Bin Power Plant and Kahang Palm Oil Mill respectively as sand replacement to produce mixed blended ashes aerated concrete. The goal is to determine characterization and thermal behaviour of the product and to compare the best POFA ratio replacement with existing commercial products. POFA was used as sand replacement at 0%, 10%, 20% and 30% by weight with fixed amount of bottom ash. A small-scale wall structure models was developed to study thermal behaviour of product through conduction and convection mechanism heat transfer for seven sunny days at 24-hour. The result showed that thermal conductivity of P30% achieved 0.48 W/mK, 81% lower than conventional concrete. P30% gave the best insulation result among different POFA ratio replacement with 122 minutes in time lag. As for the comparison with commercial aerated concrete, P30% achieved fastest thermal absorption rate with an hour earlier to reach absorption peak and 50% more in thermal mass. This gave better indoor thermal comfort. P30% also exhibited fastest adiabatic state rate with two hour earlier compared to commercial aerated concrete. Good insulation property also gave better result in lessen Urban Heat Island effect at night. However, the stored heat inside the wall contributed towards hotter indoor temperature compared to commercial aerated concrete. Further study in building design alteration might help in mitigating this drawback such as providing better air circulation with cooling chimney and window.
format	Thesis
qualification_level	Master's degree
author	Zalani, Rahmah
author_facet	Zalani, Rahmah
author_sort	Zalani, Rahmah
title	Thermal behaviour of mixed blended ashes aerated concrete
title_short	Thermal behaviour of mixed blended ashes aerated concrete
title_full	Thermal behaviour of mixed blended ashes aerated concrete
title_fullStr	Thermal behaviour of mixed blended ashes aerated concrete
title_full_unstemmed	Thermal behaviour of mixed blended ashes aerated concrete
title_sort	thermal behaviour of mixed blended ashes aerated concrete
granting_institution	Universiti Teknologi Malaysia, School of Graduate Studies
granting_department	School of Graduate Studies
publishDate	2015
url	http://eprints.utm.my/id/eprint/78418/1/RahmahZalaniMSPS2015.pdf
_version_	1747817984153354240

Thermal behaviour of mixed blended ashes aerated concrete

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