An experimental and numerical study on water permeability of concrete
作者： Xinxin Li , Qing Xu , Shenghong Chen
DOI: 10.1016/J.CONBUILDMAT.2015.12.184
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摘要: Abstract Durability of concrete depends largely on its water permeability, which is dominated by the composition and difficultly evaluated. This paper presents a three-dimensional (3D) FE algorithm to investigate transport performance in concrete. model possesses three-phase mesostructure consisting coarse aggregates, mortar matrix, interfacial transition zone (ITZ) practically modeled zero-thickness interface element. A series numerical tests with regard samples containing different volume fractions aggregates are conducted. The calculated permeability coefficients reasonable accordance physical experiment data. Effects ITZ also quantitatively studied test. It proved that proposed capable modeling permeable characteristics affected greatly heterogeneous mesostructure.
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