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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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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
score 13.211869

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