The behavior of chloride ions introduced into concrete from concrete surface by marine environment and by use of marine aggregate was analyzed for a coastal concrete structure. A mathematical model including the diffusion of chloride ion in aqueous phase of pores, the adsorption and desorption of chloride ions to and from the surface of solid phase of concrete, and the chemical reactions of chloride ions with solid phase was presented. Finite element method was employed to carry out numerical analysis. Quantitative analysis was conducted to measure the distribution of the free chloride ion concentration in aqueous phase of concrete with potentiometric titration based on ASTM D 1820. The concentration profiles of chloride ions predicted by the mathematical model agreed favorably with the measured data. The results of this study may be used to predict the onset of reinforcement corrosion and to identify the maximum limit of chloride ions contained in concrete admixtures.


    Access

    Access via TIB

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Modeling of chloride ion ingress in coastal concrete


    Contributors:

    Published in:

    Publication date :

    2002


    Size :

    6 Seiten, 9 Quellen




    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




    Estimation of chloride ingress into concrete in marine environment

    Flis, K. / Kavcic, F. / Wessex Institute of Technology et al. | British Library Conference Proceedings | 2000


    Effect of metakaolin on the chloride ingress properties of concrete

    Ferreira, R. M. / Castro-Gomes, J. P. / Costa, P. et al. | Springer Verlag | 2015


    Performance Evaluation of Concrete Bridge Deck Affected by Chloride Ingress

    Konečný, P. / Tikalsky, P. J. / Tepke, D. G. | Transportation Research Record | 2007


    Effect of metakaolin on the chloride ingress properties of concrete

    Ferreira, R. M. / Castro-Gomes, J. P. / Costa, P. et al. | Online Contents | 2016