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

Publication: Research - peer-reviewJournal article – Annual report year: 2008

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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
Publication date2008
Volume38
Issue1
Pages77-88
ISSN0008-8846
DOIs
StatePublished
CitationsWeb of Science® Times Cited: 14

Keywords

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