Modelling of chloride ingress into concrete from a saline environment

Yu Wang, Long Yuan Li, C. L. Page

    Research output: Contribution to journalArticle

    Abstract

    A mathematical model previously developed for the simulation of electrochemical chloride removal (ECR) process is utilised to predict the ionic mass transport associated with chloride ingress into concrete or hydrated cement paste from a saline environment by incorporating the convection of pore solution. Compared to the existing models, the present model has advantages in the aspect of numerical calculations as it avoids the difficulty of solving the Poisson equation about electrostatic potential. The significant effects of ionic interaction and the convection of pore solution on the chloride ingress are examined. Simulation results are compared with those obtained from the models using Fick's second law. The comparison shows that the present model is more detailed and accurate. It can be applied to various different cases with unified ionic diffusivities.

    Original languageEnglish
    Pages (from-to)1573-1582
    Number of pages10
    JournalBuilding and Environment
    Volume40
    Issue number12
    DOIs
    Publication statusPublished - 1 Dec 2005

    Fingerprint

    chloride
    Concretes
    modeling
    Adhesive pastes
    convection
    Poisson equation
    simulation
    present
    Electrostatics
    mass transport
    Cements
    Mass transfer
    diffusivity
    Mathematical models
    cement
    Law
    interaction
    Convection

    Keywords

    • Chloride ingress
    • Concrete
    • Diffusion
    • Finite element method
    • Mathematical model

    Cite this

    Wang, Yu ; Li, Long Yuan ; Page, C. L. / Modelling of chloride ingress into concrete from a saline environment. In: Building and Environment. 2005 ; Vol. 40, No. 12. pp. 1573-1582.
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    Modelling of chloride ingress into concrete from a saline environment. / Wang, Yu; Li, Long Yuan; Page, C. L.

    In: Building and Environment, Vol. 40, No. 12, 01.12.2005, p. 1573-1582.

    Research output: Contribution to journalArticle

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