Transport in Porous Media

, Volume 49, Issue 2, pp 241–246 | Cite as

Determination of Salt Diffusion Coefficient in Brick: Analytical Methods

  • X. Lü
  • M. Viljanen


This paper presents an investigation into salt diffusion in new, fully saturated brick under isothermal conditions. A commonly used experiment methodology, diffusion cell method, is adopted. The analytical and numerical solutions are obtained. The analytical solution is simple and straightforward, which determines temporally salt concentrations in the monitored chamber. It enables us to estimate salt diffusion coefficients in a fast and accurate way.

salt diffusion coefficient brick diffusion cell analytical solution 


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  1. Andrade, C.: 1993, Calculation of chloride diffusion coefficients in concrete from ionic migration measurements, Cement Concrete Res. 23, 724.Google Scholar
  2. Bear, J.: 1972, Dynamics of Fluids in Porous Media, Dover, New York.Google Scholar
  3. Geankoplis, C. J.: 1983, Transport Processes: Momentum, Heat, and Mass,Allyn andBacon Inc., U.S.A.Google Scholar
  4. Hornain, H., Marchand, J., Duhot, V. and Moranill-Regourd, M.: 1995, Diffusion of chloride ions in limestone filler blender cement pastes and mortars, Cement Concrete Res. 25, 1667.Google Scholar
  5. Kunetz, J. and Hench, L.: 1998, Restricted diffusion of chromium nitrate sate solutions into porous sol-gel-silica monoliths, J. Am. Ceramic Soc. 81, 877.Google Scholar
  6. Larsen, E. S. and Nielsen, C. B.: 1990, Decay of bricks due to salt, Mater. Struct. 23, 16.Google Scholar
  7. Lempinen, A., Fechner, H. and Grunewald, J.: 1996, Salt diffusion in building materials, In: Building Physics 96’ – 4th Nordic Symposium, 619.Google Scholar
  8. Moridis G. J.: 1999, Semianalytical solutions for parameter estimation in diffusion cell experiments, Water Resour. Res. 35, 1729.Google Scholar
  9. Truc, O., Ollivier, J. P. and Carcasses, M.: 2000, A new way for determining the chloride diffusion coefficient in concrete from steady state migration test, Cement Concrete Res. 30, 217.Google Scholar

Copyright information

© Kluwer Academic Publishers 2002

Authors and Affiliations

  • X. Lü
    • 1
  • M. Viljanen
    • 1
  1. 1.Laboratory of Structural Engineering and Building PhysicsHelsinki University of TechnologyFinland

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