Microstructural analysis of fly ash-based geopolymers with various alkali concentration
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2022
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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 |
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Institutional Repository |
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Asia |
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Malaysia |
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Universiti Malaysia Perlis |
| content_source |
UniMAP Library Digital Repository |
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http://dspace.unimap.edu.my/ |
| language |
English |
| topic |
Geopolymers Fly ash geopolymers |
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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 |
13.214268 |