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Title |
Size Effect of Concrete Compressive Strength Considering Dried Unit Weight of Concrete
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Authors |
심재일(Jae-Il Sim) ; 양근혁(Keun-Hyeok Yang) ; 이성태(Seong-Tae Yi) |
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DOI |
http://dx.doi.org/10.4334/JKCI.2015.27.2.169 |
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Keywords |
크기효과 ; 압축강도 ; 기건단위질량 ; 예측모델 size effect ; compressive strength ; dried unit weight ; prediction model |
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Abstract |
Since the size effect law announced currently has been based on the normal weight concrete, for light weight concrete having different fracture characteristics, its application is questionable. Accordingly, in this study, a model equation to predict the effect of dried unit weight of the concrete on size effect of its compressive strength was developed and a database using existing research results was created. After determining the experimental constants of prediction models of Ba?ant based on nonlinear fracture mechanics, Kim and Eo, and this study using the database, their results are mutually compared. Finally, it was found that the prediction model of this study considered dried unit weight of concrete predicted well the test results for light weight concrete than that of the models of Ba?ant and Kim and Eo.
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