Computers and Concrete

  • 제18권3호
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  • Pages.367-388
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  • 2016
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  • 1598-8198(pISSN)
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  • 1598-818X(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

A simple practical method for determination of moisture transfer coefficient of mature concrete using a combined experimental-numerical approach

  • 투고 : 2014.10.30
  • 심사 : 2016.04.20
  • 발행 : 2016.09.25
⟨ 이전 논문 다음 논문 ⟩

초록

In this paper, a simple practical method is introduced in which a simple weight measurement of concrete and finite element numerical analysis are used to determine the moisture transfer coefficient of concrete with a satisfactory accuracy. Six concrete mixtures with different water-to-cementitious material (w/cm) ratios and two pozzolanic materials including silica fume and zeolite were examined to validate the proposed method. The comparison between the distribution of the moisture content obtained from the model and the one from the experimental data during both the wetting and drying process properly validated the performance of the method.With the proposed method, it was also shown that the concrete moisture transfer coefficient considerably depends on the pore water saturation degree. The use of pozzolanic materials and also lowering w/cm ratio increased the moisture transfer coefficient during the initial sorption, and then, it significantly decreased with an increase in the water saturation degree.

키워드

과제정보

연구 과제 주관 기관 : University of Tehran

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