한국콘크리트학회:학술대회논문집 (Proceedings of the Korea Concrete Institute Conference)
- 한국콘크리트학회 2005년도 추계 학술발표회 제17권2호
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- Pages.785-788
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- 2005
콘크리트 슬래브의 소성수축균열에 대한 해석적 연구
A Numerical Study on Plastic Shrinkage Cracking of Concrete Slabs
- 발행 : 2005.11.01
초록
In this paper, the influence of many factors related to the concrete mixture and the weather condition on plastic shrinkage cracking are analyzed through parametric studies using the numerical models introduced in the companion paper. First of all, through a systematic calculation of bleeding, the relationship between the bleeding constants and concrete mixture is proposed on the basis of the experimental data obtained by many researchers. Moreover, an equation, which can directly determine a critical point at which the evaporation and bleeding is balanced, is introduced, and the efficiency of the introduced equation is verified through the correlation study between the obtained results by the introduced equation and those by the rigorous analyses. The introduced equation can effectively be used to predict and to prevent plastic shrinkage cracking without any rigorous analysis and, in advance, to cope with the sudden changes in the concrete mixture and/or weather condition.
키워드