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An Experimental Study on the Permeability of Reinforcement Concrete on Consideration of Pre-loading  

Han, Byoung-Young (전북대학교 토목공학과 대학원)
Bae, Ju-Seong (전북대학교 공과대학 토목공학과)
Publication Information
Journal of the Korea institute for structural maintenance and inspection / v.9, no.3, 2005 , pp. 87-92 More about this Journal
Abstract
The permeability of concrete affects largely on the durability of concrete, therefore it is required that the correct assessment and improvement of permeability. Therefore it is rational method that the permeability of concrete structures is estimated in the common use states under loading than in the early sound conditions. In this study, to improve the permeable efficiency of concrete, some kinds of fiber and resin are mixed in making of concrete specimens. And also, for the reasonable assessment of permeability, after 50% and 70% pre-loadings of its compressive strength were acted on the specimens, the tests were executed. From the results of this study, in the case of 50% pre-loading coefficients of permeability were increased about 1.4times against the nonpre-loading specimens and in the case of 70% pre-loading they were increased about 17.8times. And it turned out that hybrid steel fiber reinforcement is most effective for the improvement of permeable efficiency of concrete.
Keywords
Coefficient of permeability; Permeability pre-loading; Hybrid fiber reinforcement;
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