Publication:
Comparative mechanical and microstructural properties of high calcium fly ash one-part geopolymers activated with Na2SiO3-anhydrous and NaAlO2
Comparative mechanical and microstructural properties of high calcium fly ash one-part geopolymers activated with Na2SiO3-anhydrous and NaAlO2
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| cris.virtual.department | Universiti Malaysia Perlis | |
| cris.virtual.department | Universiti Malaysia Perlis | |
| cris.virtual.department | Universiti Malaysia Perlis | |
| cris.virtual.department | Universiti Malaysia Perlis | |
| cris.virtual.department | Universiti Malaysia Perlis | |
| cris.virtualsource.department | 9414f569-850d-45d8-8fa2-e5f2c4194711 | |
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| cris.virtualsource.department | cf5e21f6-0b2d-4e5b-a036-19627ea6386d | |
| dc.contributor.author | Ooi Wan-En | |
| dc.contributor.author | Liew Yun Ming | |
| dc.contributor.author | Heah Cheng Yong | |
| dc.contributor.author | Mohd. Mustafa Al Bakri Abdullah | |
| dc.contributor.author | Li L.Y. | |
| dc.contributor.author | Ho Li Ngee | |
| dc.contributor.author | Foo Kai Loong | |
| dc.contributor.author | Ong Shee-Ween | |
| dc.contributor.author | Ng Hui-Teng | |
| dc.contributor.author | Ng Yong-Sing | |
| dc.contributor.author | Nur Ain Jaya | |
| dc.date.accessioned | 2024-09-27T01:11:08Z | |
| dc.date.available | 2024-09-27T01:11:08Z | |
| dc.date.issued | 2021-11-01 | |
| dc.description.abstract | This paper investigates the effect of varying solid alkali activators on the fresh and hardened properties and microstructural changes of one-part geopolymers (OPGs). Single and binary solid alkali activators were used to activate high calcium fly ash. The alkali activators were either solely sodium metasilicate (Na2SiO3) or a combination of sodium aluminate (NaAlO2) and sodium metasilicate (Na2SiO3). The OPG activated with anhydrous Na2SiO3 achieved an excellent 28-day compressive strength of 83.6 MPa while OPG activated with NaAlO2 and Na2SiO3 attained a compressive strength of 45.1 MPa. The Na2SiO3-activated OPG demonstrated better fluidity than the OPG activated with NaAlO2 and Na2SiO3 due to the thixotropic behaviour caused by the NaAlO2. The Na2SiO3-activated OPG consisted of sodium-calcium aluminium silicate hydrate ((N,C)-A-S-H) gel phase, while the OPG activated with NaAlO2 and Na2SiO3 comprised of the coexistence of sodium aluminium silicate hydrate (N-A-S-H) and calcium aluminium silicate hydrate (C-A-S-H) gel phases. Regardless of the distinctive properties, the OPGs are adequate for building materials applications. | |
| dc.identifier.doi | 10.1016/j.jmrt.2021.10.018 | |
| dc.identifier.scopus | 2-s2.0-85117362638 | |
| dc.identifier.uri | https://hdl.handle.net/20.500.14170/3939 | |
| dc.relation.funding | Ministry of Higher Education, Malaysia | |
| dc.relation.grantno | FRGS/1/2020/TK01/UNIMAP/02/2 | |
| dc.relation.ispartof | Journal of Materials Research and Technology | |
| dc.relation.ispartofseries | Journal of Materials Research and Technology | |
| dc.relation.issn | 22387854 | |
| dc.rights | open access | |
| dc.subject | Anhydrous sodium metasilicate | High calcium fly ash | One-part geopolymer | Sodium aluminate | |
| dc.title | Comparative mechanical and microstructural properties of high calcium fly ash one-part geopolymers activated with Na2SiO3-anhydrous and NaAlO2 | |
| dc.type | Journal | |
| dspace.entity.type | Publication | |
| oaire.citation.endPage | 3866 | |
| oaire.citation.startPage | 3850 | |
| oaire.citation.volume | 15 | |
| oairecerif.affiliation.orgunit | Universiti Malaysia Perlis | |
| oairecerif.affiliation.orgunit | Universiti Malaysia Perlis | |
| oairecerif.affiliation.orgunit | Universiti Malaysia Perlis | |
| oairecerif.affiliation.orgunit | Universiti Malaysia Perlis | |
| oairecerif.affiliation.orgunit | University of Plymouth | |
| oairecerif.affiliation.orgunit | Universiti Malaysia Perlis | |
| oairecerif.affiliation.orgunit | Universiti Malaysia Perlis | |
| oairecerif.affiliation.orgunit | Universiti Malaysia Perlis | |
| oairecerif.affiliation.orgunit | Universiti Malaysia Perlis | |
| oairecerif.affiliation.orgunit | Universiti Malaysia Perlis | |
| oairecerif.affiliation.orgunit | Universiti Malaysia Perlis | |
| oairecerif.author.affiliation | Universiti Malaysia Perlis | |
| oairecerif.author.affiliation | Universiti Malaysia Perlis | |
| oairecerif.author.affiliation | Universiti Malaysia Perlis | |
| oairecerif.author.affiliation | Universiti Malaysia Perlis | |
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| oairecerif.author.affiliation | Universiti Malaysia Perlis | |
| oairecerif.author.affiliation | Universiti Malaysia Perlis | |
| oairecerif.author.affiliation | Universiti Malaysia Perlis | |
| oairecerif.author.affiliation | Universiti Malaysia Perlis | |
| oairecerif.author.affiliation | Universiti Malaysia Perlis | |
| oairecerif.author.affiliation | Universiti Malaysia Perlis | |
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| person.identifier.scopus-author-id | 57204242778 | |
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| person.identifier.scopus-author-id | 53164519100 | |
| person.identifier.scopus-author-id | 57202478752 | |
| person.identifier.scopus-author-id | 56684037400 | |
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| person.identifier.scopus-author-id | 57210916620 | |
| person.identifier.scopus-author-id | 57210912441 | |
| person.identifier.scopus-author-id | 56354805400 |
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