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Microstructural analysis of fly ash-based geopolymers with various alkali concentration

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Main Authors: Cheng-Yong, Heah, Hui-Teng, Ng, Yun-Ming, Liew, Mohd Mustafa Al Bakri, Abdullah, Yong-Sing, Ng
Other Authors: cyheah@unimap.edu.my
Format: Article
Language:English
Published: IOP Publishing Ltd 2022
Subjects:
Geopolymers
Fly ash geopolymers
Online Access:http://dspace.unimap.edu.my:80/xmlui/handle/123456789/74675
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spelling my.unimap-746752022-03-15T08:41:10Z Microstructural analysis of fly ash-based geopolymers with various alkali concentration Cheng-Yong, Heah Hui-Teng, Ng Cheng-Yong, Heah Yun-Ming, Liew Mohd Mustafa Al Bakri, Abdullah Yong-Sing, Ng cyheah@unimap.edu.my Center of Excellence Geopolymer and Green Technology (CEGeoGTech), School of Materials Engineering, Universiti Malaysia Perlis (UniMAP) Geopolymers Fly ash geopolymers Link to publisher's homepage at https://iopscience.iop.org/ In the present work, a comparative study on the effect of different concentration of sodium hydroxide (NaOH) on fly ash-based geopolymer was investigated. The geopolymer synthesis by mixing fly ash with alkali activator (a mixture of NaOH and sodium silicate) at solid/liquid ratio of 2.5. The NaOH were used 6M, 8M, 10M, 12M and 14M with constant sodium silicate/NaOH ratio of 2.5. The geopolymers were cured at room temperature (29°C) for 24 hours and 60°C in oven for another 24 hours. The testing and analysis of the fly ash-based geopolymers were performed after 28 days. The adequate Na+ ions and densified microstructure were observed at optimum 8M-NaOH-activated fly ash-based geopolymers. 2022 2022-03-15T08:31:31Z 2022-03-15T08:31:31Z 2019-08 Article IOP Conference Services: Material Sciences Engineering, vol.551, 2019, 6 pages 1757-899x (online) http://dspace.unimap.edu.my:80/xmlui/handle/123456789/74675 https://doi.org/10.1088/1757-899x/551/1/012090 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 geopolymers
spellingShingle Geopolymers
Fly ash geopolymers
Cheng-Yong, Heah
Hui-Teng, Ng
Cheng-Yong, Heah
Yun-Ming, Liew
Mohd Mustafa Al Bakri, Abdullah
Yong-Sing, Ng
Microstructural analysis of fly ash-based geopolymers with various alkali concentration
description Link to publisher's homepage at https://iopscience.iop.org/
author2 cyheah@unimap.edu.my
author_facet cyheah@unimap.edu.my
Cheng-Yong, Heah
Hui-Teng, Ng
Cheng-Yong, Heah
Yun-Ming, Liew
Mohd Mustafa Al Bakri, Abdullah
Yong-Sing, Ng
format Article
author Cheng-Yong, Heah
Hui-Teng, Ng
Cheng-Yong, Heah
Yun-Ming, Liew
Mohd Mustafa Al Bakri, Abdullah
Yong-Sing, Ng
author_sort Cheng-Yong, Heah
title Microstructural analysis of fly ash-based geopolymers with various alkali concentration
title_short Microstructural analysis of fly ash-based geopolymers with various alkali concentration
title_full Microstructural analysis of fly ash-based geopolymers with various alkali concentration
title_fullStr Microstructural analysis of fly ash-based geopolymers with various alkali concentration
title_full_unstemmed Microstructural analysis of fly ash-based geopolymers with various alkali concentration
title_sort microstructural analysis of fly ash-based geopolymers with various alkali concentration
publisher IOP Publishing Ltd
publishDate 2022
url http://dspace.unimap.edu.my:80/xmlui/handle/123456789/74675
_version_ 1729704790833758208
score 13.222552

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