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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 한국콘크리트학회 International Journal of Concrete Structures and Materials International Journal of Concrete Structures and Materials Vol.15 No.3
- 발행연도
- 2021.5
- 수록면
- 283 - 302 (20page)
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초록· 키워드
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In this study, the effect of curing temperature on the properties of slag cement concrete after high-temperature exposure was studied, and elevated curing temperature (45 ± 2 ℃ and 95% relative humidity (RH)) was selected to compare with the standard curing temperature (20 ± 2 ℃ and 95%RH). Four different concrete mixes with the same mix proportion, except for different slag replacement ratios, were used: 0% (reference), 30% (slag), 50% (slag), and 70% (slag). After high-temperature exposure at 200, 400, 600, and 800 ℃, the effect of slag replacement, high temperature, and curing temperature on the compressive strength and mineralogical and microstructural properties of slag cement concrete were studied. Test results indicated that the compressive strength of concrete cured for 7 d at elevated temperatures increased by 28.2, 20.7, 28.8, and 14.7% compared with that cured at the standard curing condition at slag percentages of 0, 70, 50, and 30%, respectively. X-ray diffraction (XRD) and Scanning electron microscope (SEM) results revealed that concrete cured at elevated temperatures exhibited a more condensed phase and contained a higher percentage of hydrates than that cured for 7 d in the standard curing condition. However, after 56 d of curing, concrete in the standard curing condition exhibited a more stable phase and a higher concentration of hydrates.
목차
Abstract
1 Introduction
2 Materials and Mix Design
3 Experimental Process
4 Results and Discussion
5 Conclusion
References
참고문헌 (55)
참고문헌 신청
Akca, A. H. / 2018 / Effects of re-curing on microstructure of concrete after high temperature exposure / Construction and Building Materials 168:431~441
Albrektsson, J. / 2011 / Assessment of concrete structures after fire
Aldea, C. -M. / 2000 / Effects of curing conditions on properties of concrete using slag replacement / Cement and Concrete Research 30(3):465~472
Annerel, E. / 2011 / Methods to quantify the colour development of concrete exposed to fire / Construction and Building Materials 25(10):3989~3997
Arioz, O. / 2007 / Effects of elevated temperatures on properties of concrete / Fire Safety Journal 42(8):516~522
Albrektsson, J. / 2011 / Assessment of concrete structures after fire
Aldea, C. -M. / 2000 / Effects of curing conditions on properties of concrete using slag replacement / Cement and Concrete Research 30(3):465~472
Annerel, E. / 2011 / Methods to quantify the colour development of concrete exposed to fire / Construction and Building Materials 25(10):3989~3997
Arioz, O. / 2007 / Effects of elevated temperatures on properties of concrete / Fire Safety Journal 42(8):516~522
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