Synthesis and characterization of fly ash based geopolymer ceramics: effect of NaOH concentration
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2022
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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 |
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Universiti Malaysia Perlis |
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Asia |
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Malaysia |
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Universiti Malaysia Perlis |
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English |
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Geopolymers Geopolymer ceramic |
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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 |
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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 |
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13.214268 |