Chloride binding in GGBS concrete

R.K. Dhir, M.A.K. El-Mohr, T.D. Dyer

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    177 Citations (Scopus)

    Abstract

    This paper reports the results of chloride binding measurements of GGBS pastes, as well as chloride diffusion and permeability measurements of GGBS concrete mixes. Chloride binding capacity was found to increase with increasing GGBS replacement levels and the chloride exposure concentration. Thermal analysis measurements suggest that much of the improvement in chloride binding is a result of high aluminate levels in GGBS leading to the production of higher quantities of Friedel's salt. When concrete mixes with relatively similar permeabilities are used the chloride binding capacity of the cement matrix becomes a major determining factor in how resistant the concrete is to chloride permeation.
    Original languageEnglish
    Pages (from-to)1767-1773
    Number of pages7
    JournalCement and Concrete Research
    Volume26
    Issue number12
    DOIs
    Publication statusPublished - 1 Dec 1996

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