期刊
CERAMICS INTERNATIONAL
卷 42, 期 8, 页码 9613-9620出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.ceramint.2016.03.046
关键词
Sarawak fly ash; Gladstone fly ash; Geopolymer; Compressive strength; Morphology
资金
- Melbourne Sarawak Research Collaboration Scheme
Two types of fly ash sourced from Sarawak, Malaysia and Gladstone, Australia reflect differences in chemical compositions, mineral phase and particle size distributions. In this paper, the Sarawak fly ash was used to produce geopolymer in comparison to the well-developed Gladstone fly ash-based geopolymer. Characteristics of fly ash and mixtures proportions affecting compressive strength of the geopolymers were investigated. It is found that the variations of both fly ash types on particle size distributions, chemical compositions, morphology properties and amorphous phase correspond to the compressive strength. The results obtained show that after 7 days, geopolymer using Sarawak fly ash has lower compressive strength of about 55 MPa than geopolymer using Gladstone fly ash with strength of about 62 MPa. In comparison with Gladstone fly ash-based geopolymer, it showed that Sarawak fly ash-based geopolymer can be a potential construction material. Moreover, the production of Sarawak fly ash-based geopolymer aids to widen the application of Sarawak fly ash from being treated as industrial waste consequently discharging into the ash pond. (C) 2016 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
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