• Title/Summary/Keyword: extreme heavy snowfall

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Performance Based Evaluation of Concrete Strength and Freeze-Thaw Resistance from Wind Speed - Sunlight Exposure Time Effect (풍속과 일조시간에 따른 콘크리트의 강도 및 동결융해 저항성 성능중심평가)

  • Kim, Tae-Kyun;Choi, Seung-Jai;Choi, Ji-Hun;Kim, Jang-Ho Jay
    • Journal of the Korea institute for structural maintenance and inspection
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    • v.21 no.1
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    • pp.49-58
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    • 2017
  • 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.