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Synthesis and characterization of fly ash based geopolymer ceramics: effect of NaOH concentration

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Main Authors: Romisuhani, Ahmad, Wan Mastura, Wan Ibrahim, Mohd Mustafa Al Bakri, Abdullah, Sandu, Andrei Victor, Nurul Aida, Mohd Mortar, Noratikah, Hashim, Warid Wazien, Ahmad Zailani
Other Authors: romisuhani@unimap.edu.my
Format: Article
Language:English
Published: IOP Publishing Ltd 2022
Subjects:
Geopolymers
Geopolymer ceramic
Online Access:http://dspace.unimap.edu.my:80/xmlui/handle/123456789/74706
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spelling my.unimap-747062022-03-17T03:23:12Z Synthesis and characterization of fly ash based geopolymer ceramics: effect of NaOH concentration Romisuhani, Ahmad Romisuhani, Ahmad Wan Mastura, Wan Ibrahim Mohd Mustafa Al Bakri, Abdullah Sandu, Andrei Victor Nurul Aida, Mohd Mortar Noratikah, Hashim Warid Wazien, Ahmad Zailani romisuhani@unimap.edu.my Faculty of Engineering Technology, Universiti Malaysia Perlis (UniMAP) Center of Excellence Geopolymer and Green Technology (CEGeoGTech), School of Materials Engineering, Universiti Malaysia Perlis (UniMAP) Faculty of Materials Science and Engineering, Gheorghe Asachi Technical University of Iasi Faculty of Civil Engineering, Universiti Teknologi MARA (UiTM) Geopolymers Geopolymer ceramic Link to publisher's homepage at https://iopscience.iop.org/ Ceramic materials have demonstrated impressive performance under severe conditions in a wide number of areas including health, energy and environment, transportation and electronic applications. In order to meet the growing demand of specific properties of ceramics, the use of geopolymer method were introduced as an alternate way by providing new material to fabricate geopolymer as ceramic precursor and moving towards green technology. Geopolymer ceramic was produced using fly ash as source materials. Different molarities of sodium hydroxide solution in the range of 8 M to 14 M were used in the preparation of fly ash geopolymer ceramic. The ratio of fly ash/alkaline solution and alkaline activator were kept constant at 2.0 and 2.5 respectively. Physical and mechanical properties such as density, flexural strength and shrinkage were determined. The optimum flexural strength of 61.6 MPa is obtained at the sodium hydroxide concentration of 12 M with the density of 2.21 g/cm³. The formation of almost fully crystalline phase with appearance of albite contribute to the flexural strength of fly ash geopolymer ceramic. Microstructure image result shows that a presence of pores due to sintering effect and smoother matrix which gives denser structure as supported by the excellent density. 2022 2022-03-17T03:23:12Z 2022-03-17T03:23:12Z 2020-02 Article IOP Conference Services: Material Sciences Engineering, vol.743, 2020, 8 pages 1757-899x (online) http://dspace.unimap.edu.my:80/xmlui/handle/123456789/74706 https://doi.org/10.1088/1757-899x/743/1/012014 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
Geopolymer ceramic
spellingShingle Geopolymers
Geopolymer ceramic
Romisuhani, Ahmad
Romisuhani, Ahmad
Wan Mastura, Wan Ibrahim
Mohd Mustafa Al Bakri, Abdullah
Sandu, Andrei Victor
Nurul Aida, Mohd Mortar
Noratikah, Hashim
Warid Wazien, Ahmad Zailani
Synthesis and characterization of fly ash based geopolymer ceramics: effect of NaOH concentration
description Link to publisher's homepage at https://iopscience.iop.org/
author2 romisuhani@unimap.edu.my
author_facet romisuhani@unimap.edu.my
Romisuhani, Ahmad
Romisuhani, Ahmad
Wan Mastura, Wan Ibrahim
Mohd Mustafa Al Bakri, Abdullah
Sandu, Andrei Victor
Nurul Aida, Mohd Mortar
Noratikah, Hashim
Warid Wazien, Ahmad Zailani
format Article
author Romisuhani, Ahmad
Romisuhani, Ahmad
Wan Mastura, Wan Ibrahim
Mohd Mustafa Al Bakri, Abdullah
Sandu, Andrei Victor
Nurul Aida, Mohd Mortar
Noratikah, Hashim
Warid Wazien, Ahmad Zailani
author_sort Romisuhani, Ahmad
title Synthesis and characterization of fly ash based geopolymer ceramics: effect of NaOH concentration
title_short Synthesis and characterization of fly ash based geopolymer ceramics: effect of NaOH concentration
title_full Synthesis and characterization of fly ash based geopolymer ceramics: effect of NaOH concentration
title_fullStr Synthesis and characterization of fly ash based geopolymer ceramics: effect of NaOH concentration
title_full_unstemmed Synthesis and characterization of fly ash based geopolymer ceramics: effect of NaOH concentration
title_sort synthesis and characterization of fly ash based geopolymer ceramics: effect of naoh concentration
publisher IOP Publishing Ltd
publishDate 2022
url http://dspace.unimap.edu.my:80/xmlui/handle/123456789/74706
_version_ 1729704794635894784
score 13.222552

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