수정 반응률 상수 모델에 의한 콘크리트의 강도의 예측Prediction of Concrete Strength by a Modified Rate Constant Model

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This paper discusses the validity of models to predict the compressive strength of concrete subjected to various temperature histories and the shortcomings of existing rate constant model and apparent activation energy concept. Based on the discussion, a modified rate constant model is proposed. The modified rate constant model, in which apparent activation energy is a nonlinear function of curing temperature and age, accurately estimates the development of the experimental compressive strengths by a few researches. Also, the apparent activation energy of concrete cured with high temperature decreases rapidly with age, but that cured with low temperature decreases gradually with age. Finally a generalized model to predict apparent activation energy and compressive strength is proposed, which is based on the regression results.
Publisher
한국콘크리트학회
Issue Date
1999-10
Language
KOR
Citation

1999 한국콘크리트학회 가을 학술대회, pp.155 - 158

URI
http://hdl.handle.net/10203/138122
Appears in Collection
CE-Conference Papers(학술회의논문)
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