National Taiwan Ocean University Institutional Repository:Item 987654321/32067
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题名: The relationship between pore structure and chloride diffusivity from ponding test in cement-based materials
作者: C. C. Yang;S. W. Cho;L. C. Wang
贡献者: NTOU:Institute of Materials Engineering
國立臺灣海洋大學:材料工程研究所
关键词: Cement-based materials;Diffusion coefficient;Porosity;Continuous pore diameter
日期: 2006-12-10
上传时间: 2012-06-15T07:16:33Z
出版者: Materials Chemistry and Physics
摘要: abstract:In this study, the total chloride contents at different penetration depth were measured after the 90-day ponding test, and the Fick's second law of diffusion was fitted to the data to determine the diffusion coefficient of concrete. The porosity and the continuous pore diameter of the same mortar in concrete were examined with the mercury intrusion porosimetry (MIP) method. The continuous pore diameter was used to assess the connectivity of cement-based materials. The diffusion coefficients obtained from ponding test were compared and correlated with the capillary porosity (pore diameter between 30 and 10000 nm) and the continuous pore diameter from the MIP testing. A good correlation between the capillary porosity and the diffusion coefficient of concrete has been determined. The continuous pore diameter is linearly related to the diffusion coefficient of concrete.
關聯: 100(2-3), pp.203-210
URI: http://ntour.ntou.edu.tw/handle/987654321/32067
显示于类别:[材料工程研究所] 期刊論文

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