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- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 한양대학교 세라믹공정연구센터 Journal of Ceramic Processing Research Journal of Ceramic Processing Research 제21권 제3호
- 발행연도
- 2020.1
- 수록면
- 358 - 364 (7page)
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The effects of Na2O content, water to binder (W/B) ratio, and the modulus (Ms) of alkaline activator solution on a fly ash-basedgeopolymer paste (FGP) were investigated. The microstructure of the pastes was observed and characterised by Scanningelectron microscope and X-ray diffraction. The results showed that the increase of Na2O content and Ms resulted in an increasein compressive strength: an increase in the W/B ratios led to a decreased compressive strength. It was found that the highcompressive strength was achieved as Ms of the alkaline activator was 1.5, and the content of this activator was 8.0-12.0% bythe proportion of Na2O to fly ash. The compressive strength of these pastes was between 26.5-39.6 MPa at 28 days when theywere cured at 85 ºC for 1 h followed by curing under standard conditions. OH− concentration, determined by Na2O content,Ms, and water content, seemed to be a crucial parameter influencing the compressive strength. There was an optimal OH−concentration range, in which the appropriate strength of geopolymer paste would be achieved. An increased alkaline contentpromoted the reaction between the mineral phases of the fly ash with the alkaline activator and the formation of an additionalsodium aluminosilicate hydrate (N-A-S-H) gel.
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참고문헌 (44)
참고문헌 신청
M. Asadi / 2012 / Synthesis and microstructural properties of a geopolymer cement with high silica materials / Journal of Ceramic Processing Research 13(4):425~428
T. Luukkonen / 2018 / Cem. Concr. Res 103:21~34
K. Neupane / 2016 / Mech. Mater 103:110~122
J. Feng / 2015 / Mater. Des 65:529~533
김유택 / 2018 / Effect of addition of As-received IGCC slag in making geopolymer / Journal of Ceramic Processing Research 19(5):378~382
T. Luukkonen / 2018 / Cem. Concr. Res 103:21~34
K. Neupane / 2016 / Mech. Mater 103:110~122
J. Feng / 2015 / Mater. Des 65:529~533
김유택 / 2018 / Effect of addition of As-received IGCC slag in making geopolymer / Journal of Ceramic Processing Research 19(5):378~382
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