淡江大學機構典藏:Item 987654321/52752
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    題名: The Nernst-Planck Equation in Cylindrical Space and Time Coordinates for the Chloride-Ion Transport Phenomenon in Concrete Materials Using Theoretical Study
    作者: Liang, Ming-te;Kao, Chin-sheng;Ou, Lin-hsuen;Cho, Shih-wei
    貢獻者: 淡江大學土木工程學系
    關鍵詞: Acceleration Chloride Migration Test;Mineral Admixtures;Nernst-Planck Equation;Transport Phenomenon
    日期: 2010-09-01
    上傳時間: 2010-12-01 10:28:46 (UTC+8)
    出版者: 臺北縣：淡江大學
    摘要: The effective evaluation of transport phenomenon of chloride-ions in concrete is required in any study of the durability problem of concrete members and structures. In this paper, the analytical solution of the Nernst-Planck equation in cylindrical space with radial symmetry and time coordinates compared with the results of the accelerated chloride migration test (ACMT) obtained from the literature were used to investigate the transport phenomenon of chloride-ions in concrete. The diffusion/migration coefficient of chloride ion was calculated by the analytical solution of the proposed method and compared with the previous results of the ACMT. The results of the present study show that the pozzolanic materials such as fly ash and slag could reduce the chloride permeability in concrete. Both the chloride concentration and migration rate versus time obtained by the calculation of the Nernst-Planck equation in two-dimensional cylindrical space and time coordinates are distinguishably in good agreement with the results measured from the experiment of the ACMT taken from the literature.
    關聯: 淡江理工學刊=Tamkang Journal of Science and Engineering 13(3)，頁257-266
    DOI: 10.6180/jase.2010.13.3.05
    顯示於類別:[土木工程學系暨研究所] 期刊論文

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