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Title |
Performance Based Evaluation of Concrete Strength and Freeze-Thaw Resistance from Wind Speed - Sunlight Exposure Time Effect
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Authors |
김태균(Tae-Kyun Kim) ; 최승재(Seung-Jai Choi) ; 최지훈(Ji-Hun Choi) ; 김장호(Jang-Ho Jay Kim) |
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DOI |
https://doi.org/10.11112/jksmi.2017.21.1.049 |
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Keywords |
기후변화 ; 콘크리트 동결융해 ; 만족도 곡선 ; 성능 중심 평가 Climate change ; Concrete freeze-thaw ; Satisfaction curve ; Performance based evaluation |
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Abstract |
The phenomena that we experience in everyday life such as snow, rain, wind, and temperature are referred to as weather, and the average state of atmospheric phenomena that occur over a long period of time in a specific region is referred to as climate. In addition, significant variation of climate compared to the average state is referred to as climate change. Concrete structures can have various problems when exposed to elements. Among the problems, the freeze-thaw problem due to extreme climatic factors such as heavy rain and snowfall has become a particularly significant issue recently. The concrete that has been subjected to repeated freeze-thaw rather than too high or low temperature shows serious degradation of durability, and the performance of structures with degraded performance is difficult to recover. Therefore, in this study, concrete durability performance with respect to freeze-thaw from curing conditions change due to wind speed and sunshine exposure time. Concrete freeze-thaw experiment are performed. using wind speed and sunlight exposure time. Also, performance based evaluation through the satisfaction curve based on the freeze-thaw test results are performed.
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