Chloride ingress in cement paste and mortar

Ole Mejlhede Jensen, Per Freiesleben Hansen, Alison M. Coats, Fred P. Glasser

    Research output: Contribution to journalJournal articleResearchpeer-review

    Abstract

    In this paper chloride ingress in cement paste and mortar is followed by electron probe microanalysis. The influence of several paste and exposure parameters on chloride ingress are examined (e.g., water-cement ratio, silica fume addition, exposure time, and temperature), The measurements are modelled on Fick's law modified by a term for chloride binding. Inclusion of chloride binding significantly improves the profile shape of the modelled ingress profiles. The presence of fine aggregate and formation of interfacial transition zones at paste-aggregate boundaries does not significantly affect diffusion rates. (C) 1999 Elsevier Science Ltd. All rights reserved.
    Original languageEnglish
    JournalCement and Concrete Research
    Volume29
    Issue number9
    Pages (from-to)1497-1504
    ISSN0008-8846
    DOIs
    Publication statusPublished - 1999

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