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Effect of different ratio of geopolymer paste based fly ash-metakaolin on compressive strength and water absorption

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Main Authors: Nor Shida Dalila, Mohd Azhar, Farah Farhana, Zainal, Mohd Mustafa Al Bakri, Abdullah
Other Authors: Center of Excellence Geopolymer and Green Technology (CEGeoGTech), School of Materials Engineering, Universiti Malaysia Perlis (UniMAP)
Format: Article
Language:English
Published: IOP Publishing Ltd 2022
Subjects:
Geopolymers
Fly ash
Online Access:http://dspace.unimap.edu.my:80/xmlui/handle/123456789/74685
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spelling my.unimap-746852022-03-16T01:04:35Z Effect of different ratio of geopolymer paste based fly ash-metakaolin on compressive strength and water absorption Nor Shida Dalila, Mohd Azhar Farah Farhana, Zainal Mohd Mustafa Al Bakri, Abdullah Center of Excellence Geopolymer and Green Technology (CEGeoGTech), School of Materials Engineering, Universiti Malaysia Perlis (UniMAP) Geopolymers Fly ash Link to publisher's homepage at https://iopscience.iop.org/ This paper presents the effect of different solid to solid (S/S) ratio by mixing the fly ash and metakaolin as geopolymer paste on the compressive strength and water absorption. Fly ash is a waste materials produced by combustion of coal at power plant while metakaolin was obtained by calcining the kaolin at 750 °C for 4 hours. Different weight percentage of S/S ratio of fly ash/metakaolin used were 50%:50% (Mix 1), 70%:30% (Mix 2) and 90%:10% (Mix 3). Alkaline activators that act as binder were sodium hydroxide (NaOH) and sodium silicate (Na₂SiO₃) solutions. The ratio of Na₂SiO₃/NaOH is 2.5 to 1. The mixture then placed into cylinder mould and left for 7, 14 and 28 days before it be tested. The product obtained were observed and it shows that Mix 2 has highest compressive strength for 28 days that was 41.22 MPa and has lower water absorption. The pore size decreases and permeability also decreases hence the strength potentially improve 2022 2022-03-16T01:04:35Z 2022-03-16T01:04:35Z 2019-12 Article IOP Conference Services: Material Sciences Engineering, vol.701, 2019, 7 pages 1757-899x (online) http://dspace.unimap.edu.my:80/xmlui/handle/123456789/74685 https://doi.org/10.1088/1757-899x/701/1/012010 en IOP Publishing Ltd
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 Geopolymers
Fly ash
spellingShingle Geopolymers
Fly ash
Nor Shida Dalila, Mohd Azhar
Farah Farhana, Zainal
Mohd Mustafa Al Bakri, Abdullah
Effect of different ratio of geopolymer paste based fly ash-metakaolin on compressive strength and water absorption
description Link to publisher's homepage at https://iopscience.iop.org/
author2 Center of Excellence Geopolymer and Green Technology (CEGeoGTech), School of Materials Engineering, Universiti Malaysia Perlis (UniMAP)
author_facet Center of Excellence Geopolymer and Green Technology (CEGeoGTech), School of Materials Engineering, Universiti Malaysia Perlis (UniMAP)
Nor Shida Dalila, Mohd Azhar
Farah Farhana, Zainal
Mohd Mustafa Al Bakri, Abdullah
format Article
author Nor Shida Dalila, Mohd Azhar
Farah Farhana, Zainal
Mohd Mustafa Al Bakri, Abdullah
author_sort Nor Shida Dalila, Mohd Azhar
title Effect of different ratio of geopolymer paste based fly ash-metakaolin on compressive strength and water absorption
title_short Effect of different ratio of geopolymer paste based fly ash-metakaolin on compressive strength and water absorption
title_full Effect of different ratio of geopolymer paste based fly ash-metakaolin on compressive strength and water absorption
title_fullStr Effect of different ratio of geopolymer paste based fly ash-metakaolin on compressive strength and water absorption
title_full_unstemmed Effect of different ratio of geopolymer paste based fly ash-metakaolin on compressive strength and water absorption
title_sort effect of different ratio of geopolymer paste based fly ash-metakaolin on compressive strength and water absorption
publisher IOP Publishing Ltd
publishDate 2022
url http://dspace.unimap.edu.my:80/xmlui/handle/123456789/74685
_version_ 1729704792228364288
score 13.222552

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