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2018 Volume 43 Issue 5
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TONG Hui-zhi. Concrete moisture transport tests based on non-saturated specimens[J]. Journal of Southwest China Normal University(Natural Science Edition), 2018, 43(5): 121-126. doi: 10.13718/j.cnki.xsxb.2018.05.020
Citation: TONG Hui-zhi. Concrete moisture transport tests based on non-saturated specimens[J]. Journal of Southwest China Normal University(Natural Science Edition), 2018, 43(5): 121-126. doi: 10.13718/j.cnki.xsxb.2018.05.020
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Concrete moisture transport tests based on non-saturated specimens

  • Department of Construction Engineering, Zhejiang Tongji Vocational College of Science and Technology, Hangzhou 311231, China

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  • Received Date: 09/05/2017
  • Concrete is a porous material, water or air can corrodeconcrete freely that reduced the durability of concrete. The permeability,one of the most important influence factors of concrete durability, was studied based on water saturated state mostly by water coefficient and chloride diffusion coefficient according extensive literature. Actually, most constructions are serving under unsaturated state, the unsaturation should be considered asone important factor that affects the permeability of concrete. And most tests are implemented by slicing the concrete specimens, it costs huge time and procedures,and the results are influenced by the condition and the process easily, neither with realtime and whole service life monitoring. This paper discussed the water transportation evaluation system on unsaturated concrete by self-designed permeability monitoring system under water pressure with 1MPa.The result shows that it can be monitored under 45% relative saturation through whole service life. The water arrival time points are linearly dependent on the low level load.
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Concrete moisture transport tests based on non-saturated specimens

  • Received Date: 09/05/2017

Abstract: Concrete is a porous material, water or air can corrodeconcrete freely that reduced the durability of concrete. The permeability,one of the most important influence factors of concrete durability, was studied based on water saturated state mostly by water coefficient and chloride diffusion coefficient according extensive literature. Actually, most constructions are serving under unsaturated state, the unsaturation should be considered asone important factor that affects the permeability of concrete. And most tests are implemented by slicing the concrete specimens, it costs huge time and procedures,and the results are influenced by the condition and the process easily, neither with realtime and whole service life monitoring. This paper discussed the water transportation evaluation system on unsaturated concrete by self-designed permeability monitoring system under water pressure with 1MPa.The result shows that it can be monitored under 45% relative saturation through whole service life. The water arrival time points are linearly dependent on the low level load.

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