- Title
- Application of the Poisson-Nernst-Planck equations to the migration test
- Creator
- Krabbenhøft, K.; Krabbenhøft, J.
- Relation
- Cement and Concrete Research Vol. 38, Issue 1, p. 77-88
- Publisher Link
- http://dx.doi.org/10.1016/j.cemconres.2007.08.006
- Publisher
- Elsevier
- Resource Type
- journal article
- Date
- 2008
- Description
- 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.
- Subject
- migration test; Poisson-Nernst-Planck (PNP); cement; chloride; diffusion; electro-diffusion; analytical solution; numerical analysis
- Identifier
- http://hdl.handle.net/1959.13/41596
- Identifier
- uon:4883
- Identifier
- ISSN:0008-8846
- Language
- eng
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