Staff View: Chemical distributions of different sodium hydroxide molarities on fly ash/dolomite-based geopolymer

Chemical distributions of different sodium hydroxide molarities on fly ash/dolomite-based geopolymer

Geopolymers are an inorganic material in an alkaline environment that is synthesized with alumina–silica gel. The structure of geopolymers consists of an inorganic chain of material and a covalent-bound molecular system. Currently, Ordinary Portland Cement (OPC) has caused carbon dioxide (CO2) emiss...

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Main Authors:	Wan Ibrahim, Wan Mastura, Abdullah, Mohd. Mustafa Al Bakri, Ahmad, Romisuhani, Sandu, Andrei Victor, Vizureanu, Petrica, Benjeddou, Omrane, Rahim, Afikah, Ibrahim, Masdiyana, Sauffi, Ahmad Syauqi
Format:	Article
Language:	English
Published:	MDPI 2022
Subjects:	TA Engineering (General). Civil engineering (General)
Online Access:	http://eprints.utm.my/102935/1/AfikahRahim2022_ChemicalDistributionsofDifferentSodiumHydroxide.pdf http://eprints.utm.my/102935/ http://dx.doi.org/10.3390/ma15176163
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spelling	my.utm.1029352023-10-12T08:15:59Z http://eprints.utm.my/102935/ Chemical distributions of different sodium hydroxide molarities on fly ash/dolomite-based geopolymer Wan Ibrahim, Wan Mastura Abdullah, Mohd. Mustafa Al Bakri Ahmad, Romisuhani Sandu, Andrei Victor Vizureanu, Petrica Benjeddou, Omrane Rahim, Afikah Ibrahim, Masdiyana Sauffi, Ahmad Syauqi TA Engineering (General). Civil engineering (General) Geopolymers are an inorganic material in an alkaline environment that is synthesized with alumina–silica gel. The structure of geopolymers consists of an inorganic chain of material and a covalent-bound molecular system. Currently, Ordinary Portland Cement (OPC) has caused carbon dioxide (CO2) emissions which causes greenhouse effects. This analysis investigates the impact on fly ash/dolomite-based-geopolymer with various molarities of sodium hydroxide solutions which are 6 M, 8 M, 10 M, 12 M and 14 M. The samples of fly ash/dolomite-based-geopolymer were prepared with the usage of solid to liquid of 2.0, by mass and alkaline activator ratio of 2.5, by mass. After that, the geopolymer was cast in 50 × 50 × 50 mm molds before testing after 7 days of curing. The samples were tested on compressive strength, density, water absorption, morphology, elemental distributions and phase analysis. From the results, the usage of 8 M of NaOH gave the optimum properties for the fly ash/dolomite-based geopolymer. The elemental distribution analysis exposes the Al, Si, Ca, Fe and Mg chemical distribution of the samples from the selected area. The distribution of the elements is related to the compressive strength and compared with the chemical composition of the fly ash and dolomite. MDPI 2022-09 Article PeerReviewed application/pdf en http://eprints.utm.my/102935/1/AfikahRahim2022_ChemicalDistributionsofDifferentSodiumHydroxide.pdf Wan Ibrahim, Wan Mastura and Abdullah, Mohd. Mustafa Al Bakri and Ahmad, Romisuhani and Sandu, Andrei Victor and Vizureanu, Petrica and Benjeddou, Omrane and Rahim, Afikah and Ibrahim, Masdiyana and Sauffi, Ahmad Syauqi (2022) Chemical distributions of different sodium hydroxide molarities on fly ash/dolomite-based geopolymer. Materials, 15 (17). pp. 1-15. ISSN 1996-1944 http://dx.doi.org/10.3390/ma15176163 DOI:10.3390/ma15176163
institution	Universiti Teknologi Malaysia
building	UTM Library
collection	Institutional Repository
continent	Asia
country	Malaysia
content_provider	Universiti Teknologi Malaysia
content_source	UTM Institutional Repository
url_provider	http://eprints.utm.my/
language	English
topic	TA Engineering (General). Civil engineering (General)
spellingShingle	TA Engineering (General). Civil engineering (General) Wan Ibrahim, Wan Mastura Abdullah, Mohd. Mustafa Al Bakri Ahmad, Romisuhani Sandu, Andrei Victor Vizureanu, Petrica Benjeddou, Omrane Rahim, Afikah Ibrahim, Masdiyana Sauffi, Ahmad Syauqi Chemical distributions of different sodium hydroxide molarities on fly ash/dolomite-based geopolymer
description	Geopolymers are an inorganic material in an alkaline environment that is synthesized with alumina–silica gel. The structure of geopolymers consists of an inorganic chain of material and a covalent-bound molecular system. Currently, Ordinary Portland Cement (OPC) has caused carbon dioxide (CO2) emissions which causes greenhouse effects. This analysis investigates the impact on fly ash/dolomite-based-geopolymer with various molarities of sodium hydroxide solutions which are 6 M, 8 M, 10 M, 12 M and 14 M. The samples of fly ash/dolomite-based-geopolymer were prepared with the usage of solid to liquid of 2.0, by mass and alkaline activator ratio of 2.5, by mass. After that, the geopolymer was cast in 50 × 50 × 50 mm molds before testing after 7 days of curing. The samples were tested on compressive strength, density, water absorption, morphology, elemental distributions and phase analysis. From the results, the usage of 8 M of NaOH gave the optimum properties for the fly ash/dolomite-based geopolymer. The elemental distribution analysis exposes the Al, Si, Ca, Fe and Mg chemical distribution of the samples from the selected area. The distribution of the elements is related to the compressive strength and compared with the chemical composition of the fly ash and dolomite.
format	Article
author	Wan Ibrahim, Wan Mastura Abdullah, Mohd. Mustafa Al Bakri Ahmad, Romisuhani Sandu, Andrei Victor Vizureanu, Petrica Benjeddou, Omrane Rahim, Afikah Ibrahim, Masdiyana Sauffi, Ahmad Syauqi
author_facet	Wan Ibrahim, Wan Mastura Abdullah, Mohd. Mustafa Al Bakri Ahmad, Romisuhani Sandu, Andrei Victor Vizureanu, Petrica Benjeddou, Omrane Rahim, Afikah Ibrahim, Masdiyana Sauffi, Ahmad Syauqi
author_sort	Wan Ibrahim, Wan Mastura
title	Chemical distributions of different sodium hydroxide molarities on fly ash/dolomite-based geopolymer
title_short	Chemical distributions of different sodium hydroxide molarities on fly ash/dolomite-based geopolymer
title_full	Chemical distributions of different sodium hydroxide molarities on fly ash/dolomite-based geopolymer
title_fullStr	Chemical distributions of different sodium hydroxide molarities on fly ash/dolomite-based geopolymer
title_full_unstemmed	Chemical distributions of different sodium hydroxide molarities on fly ash/dolomite-based geopolymer
title_sort	chemical distributions of different sodium hydroxide molarities on fly ash/dolomite-based geopolymer
publisher	MDPI
publishDate	2022
url	http://eprints.utm.my/102935/1/AfikahRahim2022_ChemicalDistributionsofDifferentSodiumHydroxide.pdf http://eprints.utm.my/102935/ http://dx.doi.org/10.3390/ma15176163
_version_	1781777619709067264
score	13.211869

Chemical distributions of different sodium hydroxide molarities on fly ash/dolomite-based geopolymer

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