Design and development of low cost lightweight concrete composites with mixture of fly ash and concrete sludge aggregate

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Bibliographic Details
Main Author:	Ooi, Wei Hong
Other Authors:	Norlia Mohamad Ibrahim
Format:	Learning Object
Language:	English
Published:	Universiti Malaysia Perlis (UniMAP) 2015
Subjects:	Lightweight concrete Fly ash Concrete sludge aggregates (CSA) Concrete
Online Access:	http://dspace.unimap.edu.my:80/xmlui/handle/123456789/40692
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Institution:	Universiti Malaysia Perlis
Language:	English

id	my.unimap-40692
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spelling	my.unimap-406922015-12-31T08:39:51Z Design and development of low cost lightweight concrete composites with mixture of fly ash and concrete sludge aggregate Ooi, Wei Hong Norlia Mohamad Ibrahim Lightweight concrete Fly ash Concrete sludge aggregates (CSA) Concrete Access is limited to UniMAP community. In this research, fly ash and concrete sludge aggregates (CSA) as partial replacement have introduced into lightweight foam concrete where these materials play an important role to enhance the properties of concrete. Fly ashes are finely residue from the combustion powdered coal for generating electric purpose. On the other hand, recycle aggregates play a main key role in reducing the need for landfill waste disposal and converse natural aggregates to protect environment. Mainly, the effect of CSA can be determined by substituted 10%, 30%, and 50% as partial replacement of coarse aggregates with the fix amount of 15% fly ash and 50% of foam in the mixing ratio 1:1:2 of concrete. Then, the suitable of amount fly ash can be added into concrete is 15%, 20%, 25% and 30% as partial replacement of cement with the fixed amount of 30% CSA and 50% of foam. Based on the result obtained, the lightweight foam concretes achieved density from 1798 kg/m3 to 2305 kg/m3. Besides that, water absorption of the lightweight foam concretes varies from 6.508% to 14.013%. Next, the samples achieved vary in compression strength at 28 days from 9.584 MPa to 32.229 MPa. In conclusion, the optimum content of fly ash and CSA can be used in this research are 25% and 30% as partial replacement of cement and coarse aggregates to achieve the highest compression strength compared to other mixing ratio. This sample achieved bulk density 1844 kg/m3 which can be categorized as lightweight concrete and with the highest compression strength of 16.970 MPa. 2015-12-31T08:39:51Z 2015-12-31T08:39:51Z 2013-06 Learning Object http://dspace.unimap.edu.my:80/xmlui/handle/123456789/40692 en Universiti Malaysia Perlis (UniMAP) School of Environmental Engineering
institution	Universiti Malaysia Perlis
building	UniMAP Library
collection	Institutional Repository
continent	Asia
country	Malaysia
content_provider	Universiti Malaysia Perlis
content_source	UniMAP Library Digital Repository
url_provider	http://dspace.unimap.edu.my/
language	English
topic	Lightweight concrete Fly ash Concrete sludge aggregates (CSA) Concrete
spellingShingle	Lightweight concrete Fly ash Concrete sludge aggregates (CSA) Concrete Ooi, Wei Hong Design and development of low cost lightweight concrete composites with mixture of fly ash and concrete sludge aggregate
description	Access is limited to UniMAP community.
author2	Norlia Mohamad Ibrahim
author_facet	Norlia Mohamad Ibrahim Ooi, Wei Hong
format	Learning Object
author	Ooi, Wei Hong
author_sort	Ooi, Wei Hong
title	Design and development of low cost lightweight concrete composites with mixture of fly ash and concrete sludge aggregate
title_short	Design and development of low cost lightweight concrete composites with mixture of fly ash and concrete sludge aggregate
title_full	Design and development of low cost lightweight concrete composites with mixture of fly ash and concrete sludge aggregate
title_fullStr	Design and development of low cost lightweight concrete composites with mixture of fly ash and concrete sludge aggregate
title_full_unstemmed	Design and development of low cost lightweight concrete composites with mixture of fly ash and concrete sludge aggregate
title_sort	design and development of low cost lightweight concrete composites with mixture of fly ash and concrete sludge aggregate
publisher	Universiti Malaysia Perlis (UniMAP)
publishDate	2015
url	http://dspace.unimap.edu.my:80/xmlui/handle/123456789/40692
_version_	1643799456925089792

Design and development of low cost lightweight concrete composites with mixture of fly ash and concrete sludge aggregate

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