PFA concrete: Exposure temperature effects on chloride diffusion

R. K. Dhir, M. R. Jones, A. E. Elghaly

    Research output: Contribution to journalArticle

    13 Citations (Scopus)

    Abstract

    The results are discussed of a study into the effect of exposure temperature on the coefficient of chloride diffusion (D) of concrete, with PFA contents varying from 0 to 50%, strength from 20 to 60 N/mm2 and initial curing being in either water 20°C or in air 20°C/55% RH. The effect of PFA in reducing D is shown to increase with exposure temperature. This effect is greater than the effect of design strength and is more marked where the initial curing has been poor. The work shows that the diffusion test conditions must be chosen to reflect the exposure environment of the concrete structure, as it is possible to greatly over or underestimate the durability of concrete using the standard temperature of 20°C.

    Original languageEnglish
    Pages (from-to)1105-1114
    Number of pages10
    JournalCement and Concrete Research
    Volume23
    Issue number5
    DOIs
    Publication statusPublished - Sep 1993

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