Time-dependent water permeation behavior of concrete under constant hydraulic pressure |
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| Authors: | Fang Yonghao Wang Zhongli Zhou Yue |
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| Affiliation: | College of Materials Science and Engineering, Hohai University, Nanjing 210098, P. R. China |
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| Abstract: | In the present work, a concrete permeability testing setup was designed to study the behavior of hydraulic concrete subjected to constant hydraulic pressure. The results show that when concrete is subjected to high enough constant hydraulic pressure, it will be permeated, and after it reaches its maximum permeation rate, the permeability coefficient will gradually decrease towards a stable value. A time-dependent model of permeability coefficient for concrete subjected to hydraulic pressure is proposed. It is indicated that the decrease of the permeability coefficient with permeation time conforms well to the negative-exponential decrease model. |
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| Keywords: | concrete permeability permeability testing setup time-dependent model |
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