Application of the Poisson-Nernst-Planck equations to the migration test

Kristian Krabbenhøft, Jørgen Krabbenhøft

    Research output: Contribution to journalJournal articleResearchpeer-review


    The Poisson-Nernst-Planck (PNP) equations are applied to model the migration test. A detailed analysis of the equations is presented and the effects of a number of common, simplifying assumptions are quantified. In addition, closed-form solutions for the effective chloride diffusivity based on the full PNP equations are derived, a number of experiments are analyzed in detail, and a new, truly accelerated migration test is proposed. Finally, we present a finite element procedure for numerical solution of the PNP equations.
    Original languageEnglish
    JournalCement and Concrete Research
    Issue number1
    Pages (from-to)77-88
    Publication statusPublished - 2008


    • diffusion
    • analytical solution
    • Poisson-Nernst-Planck
    • numerical analysis
    • chloride
    • migration test
    • cement
    • PNP
    • electro-diffusion


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