Reduction Of Sulphate In Waste Recycle Aggregate Using Bacillus Subtilis

Waste concrete aggregate (WCA) is highly potential to be re-utilised as a recycled material as it is applicable to numerous functions. Attached cement paste on WCA surface has limited the potential WCA to be recycled as a part of raw construction materials. Low density, high in water absorption...

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Bibliographic Details
Main Author:	Abdul Aziz, Nurhanim
Format:	Thesis
Language:	English
Published:	2018
Subjects:	T173.2-174.5 Technological change
Online Access:	http://eprints.usm.my/61205/1/Reduction%20of%20sulphate%20in%20waste%20cut.pdf
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id	my-usm-ep.61205
record_format	uketd_dc
spelling	my-usm-ep.612052024-09-24T02:41:51Z Reduction Of Sulphate In Waste Recycle Aggregate Using Bacillus Subtilis 2018-07 Abdul Aziz, Nurhanim T173.2-174.5 Technological change Waste concrete aggregate (WCA) is highly potential to be re-utilised as a recycled material as it is applicable to numerous functions. Attached cement paste on WCA surface has limited the potential WCA to be recycled as a part of raw construction materials. Low density, high in water absorption and sulphate content are identified as the major contributing factors for this limitation. The sulphate content in delayed ettringite formation (DEF) from high water absorption of attached cement paste leads to DEF expansion and forms a micro-crack, causing a mass loss and affects the mechanical strength (compressive strength) of the concrete. 2018-07 Thesis http://eprints.usm.my/61205/ http://eprints.usm.my/61205/1/Reduction%20of%20sulphate%20in%20waste%20cut.pdf application/pdf en public phd doctoral Universiti Sains Malaysia Pusat Pengajian Teknologi Industri
institution	Universiti Sains Malaysia
collection	USM Institutional Repository
language	English
topic	T173.2-174.5 Technological change
spellingShingle	T173.2-174.5 Technological change Abdul Aziz, Nurhanim Reduction Of Sulphate In Waste Recycle Aggregate Using Bacillus Subtilis
description	Waste concrete aggregate (WCA) is highly potential to be re-utilised as a recycled material as it is applicable to numerous functions. Attached cement paste on WCA surface has limited the potential WCA to be recycled as a part of raw construction materials. Low density, high in water absorption and sulphate content are identified as the major contributing factors for this limitation. The sulphate content in delayed ettringite formation (DEF) from high water absorption of attached cement paste leads to DEF expansion and forms a micro-crack, causing a mass loss and affects the mechanical strength (compressive strength) of the concrete.
format	Thesis
qualification_name	Doctor of Philosophy (PhD.)
qualification_level	Doctorate
author	Abdul Aziz, Nurhanim
author_facet	Abdul Aziz, Nurhanim
author_sort	Abdul Aziz, Nurhanim
title	Reduction Of Sulphate In Waste Recycle Aggregate Using Bacillus Subtilis
title_short	Reduction Of Sulphate In Waste Recycle Aggregate Using Bacillus Subtilis
title_full	Reduction Of Sulphate In Waste Recycle Aggregate Using Bacillus Subtilis
title_fullStr	Reduction Of Sulphate In Waste Recycle Aggregate Using Bacillus Subtilis
title_full_unstemmed	Reduction Of Sulphate In Waste Recycle Aggregate Using Bacillus Subtilis
title_sort	reduction of sulphate in waste recycle aggregate using bacillus subtilis
granting_institution	Universiti Sains Malaysia
granting_department	Pusat Pengajian Teknologi Industri
publishDate	2018
url	http://eprints.usm.my/61205/1/Reduction%20of%20sulphate%20in%20waste%20cut.pdf
_version_	1811772892042493952

Reduction Of Sulphate In Waste Recycle Aggregate Using Bacillus Subtilis

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