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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2024.3
- 수록면
- 255 - 264 (10page)
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초록· 키워드
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This study examines the potential use of coal gasification slag (CGS) as a fine aggregate in concrete mixtures, considering different combinations of cement types and mix designs. Test results revealed that concrete flowability increases with changes in cement composition and CGS replacement ratio, while reducing air content necessitates higher doses of air-entraining agent. The initial compressive strength of concrete is notably high with cement, with greater long-term strength observed in combinations involving binary or ternary blended mineral admixtures. However, a slight decrease of 1-5% in compressive strength is noted with an increased CGS replacement ratio. Durability fluctuations, mostly minor, vary with cement type, generally showing positive results associated with the CGS replacement ratio. Nonetheless, reduced frost resistance is observed only in the TBC+CGS 50% mixture, suggesting air content"s predominant influence over CGS"s impact on frost resistance. Overall, CGS use as a fine aggregate of up to 50% poses no adverse effects on concrete"s comprehensive physical properties and durability. However, additional research is necessary to devise methods for maintaining optimal air content in CGS materials.
목차
Abstract
1. 서론
2. 실험계획 및 방법
3. 실험결과 및 분석
4. 결론
REFERENCES
참고문헌 (21)
참고문헌 신청
Aperador, W., Mejía de Gutiérrez, R., & Bastidas, D. M. (2009). Steel corrosion behaviour in carbonated alkali-activated slag concrete, Corrosion Science, 51(9), 2027-2033.
Bakharev, T., Sanjayan, J. G., & Cheng, Y. B. (2001). Resistance of alkali-activated slag concrete to carbonation, Cement and Concrete Research, 31(9), 1277-1283.
Choi, I. K., & Han, M. C. (2020). “Analysis of Fundamental Properties and Durability of Concrete Using Coal Gasification Slag as a Combined Aggregate”, Journal of the Korea Institute of Building Construction, 20(4), 331-338.
Escalante, J. I., Gómez, L. Y., Johal, K. K., Mendoza, G., Mancha, H., & Méndez, J. (2001). Reactivity of blast-furnace slag in Portland cement blends hydrated under different conditions, Cement and Concrete Research, 31, 1403-1409.
Han, M. C., Choi, I. K. (2020). A Study on the Fundamental and Heat of Hydration Properties of Fly Ash Replacement Concrete Mixed with Coal Gasification Slag for Fine Aggregate, Journal of the Architectural Institute of Korea Structure & Construction, 36(1), 155-162.
Bakharev, T., Sanjayan, J. G., & Cheng, Y. B. (2001). Resistance of alkali-activated slag concrete to carbonation, Cement and Concrete Research, 31(9), 1277-1283.
Choi, I. K., & Han, M. C. (2020). “Analysis of Fundamental Properties and Durability of Concrete Using Coal Gasification Slag as a Combined Aggregate”, Journal of the Korea Institute of Building Construction, 20(4), 331-338.
Escalante, J. I., Gómez, L. Y., Johal, K. K., Mendoza, G., Mancha, H., & Méndez, J. (2001). Reactivity of blast-furnace slag in Portland cement blends hydrated under different conditions, Cement and Concrete Research, 31, 1403-1409.
Han, M. C., Choi, I. K. (2020). A Study on the Fundamental and Heat of Hydration Properties of Fly Ash Replacement Concrete Mixed with Coal Gasification Slag for Fine Aggregate, Journal of the Architectural Institute of Korea Structure & Construction, 36(1), 155-162.
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