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Studying of salt diffusion coefficient in brick—Analytical and numerical methods

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Abstract

The salt diffusion in fully saturated brick at isothermal condition is investigated. A commonly used experiment methodology, diffusion cell method, is adopted to estimate the salt diffusion coefficient. The mathematical model is developed. An approximate analytical solution is given. The solution agrees with the numerical solution. The analytical solution has applications in a wide number of fields with diffusion cell method. Furthermore, the diffusion coefficients of different types of salt for different types of brick are discussed.

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Authors and Affiliations

  1. Laboratory of Structural Engineering and Building Physics, Department of Civil and Environmental Engineering, Helsinki University of Technology, P.O. Box 2100, FIN-02150, Espoo, Finland

    Xiaoshu Lü

  2. Laboratory of Physical Chemistry and Electrochemistry, Department of Chemical Technology, Helsinki University of Technology, P.O. Box 6100, FIN-02150, Espoo, Finland

    Jori Ahl

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  1. Xiaoshu Lü
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  2. Jori Ahl
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Correspondence to Jori Ahl.

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Lü, X., Ahl, J. Studying of salt diffusion coefficient in brick—Analytical and numerical methods. J Mater Sci 40, 3795–3802 (2005). https://doi.org/10.1007/s10853-005-3321-9

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  • DOI: https://doi.org/10.1007/s10853-005-3321-9

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