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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 한국계산역학회 Computers and Concrete, An International Journal Computers and Concrete, An International Journal Vol.20 No.1
- 발행연도
- 2017.1
- 수록면
- 77 - 84 (8page)
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초록· 키워드
오류제보하기
Shirasu, a pyroclastic flow deposit, showed considerable performance as aluminosilicate source in geopolymer, based on past research. However, the polymerization reactivity was somewhat lower compared to the traditional fly ash based geopolymer even though the long-term strength was fairly good. The present study concentrates on the development of higher initial strength performance of Shirasu based geopolymer by utilizing ground granulated blast furnace slag as an admixture. Mortars with various mix proportions were adopted to study the effect of parametric changes on strength development along with the addition of slag in different percentages. A combination of sodium hydroxide and sodium silicate was used as alkaline activators considering parameters like molar ratios of alkali to geopolymer water and silica to alkali molar ratio. The mortars were cured at elevated temperatures under different curing conditions to analyze the effect on strength development. Compressive strength test, mercury intrusion porosimetry and X-ray powder diffraction were carried out to assess the strength performance and microstructure of slag-Shirasu based geopolymer. Based on the experimental study, it was observed that the initial and long-term strength development of Slag-Shirasu geopolymer were improved by the addition of slag.
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참고문헌 (30)
참고문헌 신청
Bakharev, T. / 2005 / Geopolymeric materials prepared using class F fly ash and elevated temperature curing / Cement Concrete Res. 35(6):1224~1232
Bernal, S. A. / 2013 / Gel nanostructure in alkali-activated binders based on slag and fly ash, and effects of accelerated carbonation / Cement Concrete Res. 53:127~144
Deb, P. S. / 2014 / The effects of ground granulated blast-furnace slag blending with fly ash and activator content on the workability and strength properties of geopolymer concrete cured at ambient temperature / Mater. Des. 62:32~39
Djobo, J. N. Y. / 2014 / Synthesis of geopolymer composites from a mixture of volcanic scoria and metakaolin / J. Asian Ceram. Soc. 2(4):387~398
Duxson, P. / 2007 / Geopolymer technology : The current state of the art / J. Mater. Sci. 42(9):2917~2933
Bernal, S. A. / 2013 / Gel nanostructure in alkali-activated binders based on slag and fly ash, and effects of accelerated carbonation / Cement Concrete Res. 53:127~144
Deb, P. S. / 2014 / The effects of ground granulated blast-furnace slag blending with fly ash and activator content on the workability and strength properties of geopolymer concrete cured at ambient temperature / Mater. Des. 62:32~39
Djobo, J. N. Y. / 2014 / Synthesis of geopolymer composites from a mixture of volcanic scoria and metakaolin / J. Asian Ceram. Soc. 2(4):387~398
Duxson, P. / 2007 / Geopolymer technology : The current state of the art / J. Mater. Sci. 42(9):2917~2933
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