Abstract
Geopolymerization is widely used in the construction sector for its characteristics of strong compressive strengths, quick hardening, long-term durability, fire resistance, and erosion resistance. This paper has gone through the geopolymer performances utilizing coal bottom ash (CBA), CBA blended with fly ash (FA), CBA mixed together with slag, and CBA with rice husk ash (RHA). CBA shows a better performance than FA in the compressive strength. This paper has discovered several elements that influence geopolymerization, the curing time, the curing temperature, the silicate and hydroxide ratio, and grinding CBA surfaces. The combination of CBA and RHA is suitable for lightweight concrete, as the range of the volumetric weight is within 1192 kg/m3 to 1655 kg/m3. The slump result decreases, as the ratio of CBA and slag increases. Slag particles are uneven in shape, which increases water consumption and leads to a honeycombed structure, whereas CBA particles are spherical in shape, which enhances workability.
Original language | English |
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Title of host publication | Proceedings of The 2nd International Electronic Conference on Applied Sciences |
Publisher | MDPI AG |
Number of pages | 8 |
Volume | 11 |
Edition | 1 |
DOIs | |
Publication status | Published - 2021 |
Event | International Electronic Conference on Applied Sciences 2021 - online Duration: 15 Oct 2021 → 31 Oct 2021 Conference number: 2nd https://www.mdpi.com/2673-4591/11/1 |
Publication series
Name | Engineering Proceedings |
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Publisher | MDPI AG |
ISSN (Print) | 2673-4591 |
Conference
Conference | International Electronic Conference on Applied Sciences 2021 |
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Abbreviated title | ASEC 2021 |
Period | 15/10/21 → 31/10/21 |
Internet address |
Keywords
- CBA-based geopolymer
- fly ash
- geopolymer
- rice husk ash
- slag
- water glass solution (WGS)