Influence of PFA on proportion of free chlorides in salt contaminated concrete.

R. K. Dhir, M. R. Jones

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This paper considers the occurrence of chlorides in hardened concrete. It shows how the presence of pulverized-fuel ash (pfa) is potentially beneficial in reducing the proportion of water-soluble chlorides. This effect increases with concrete maturity. Acid- soluble chloride proportions are shown to be variable depending on the rigour of the acid-extraction techniques. Contrary to this, water- extraction of chlorides appears to be less variable, provided that the extraction period is greater than about 24 hours. (A)

Original languageEnglish
Title of host publicationCorrosion of reinforcement in concrete
Subtitle of host publicationpapers presented at the Third International Symposium on "Corrosion of Reinforcement in Concrete Construction", held at the Belfry Hotel, Wishaw, Warwickshire, UK, 21-24 May 1990
EditorsC. L. Page, K.W.J. Treadaway, P.B. Bamforth
Place of PublicationLondon
PublisherElsevier
Pages227-236
Number of pages10
ISBN (Print)1851664874, 9781851664870
Publication statusPublished - 1990

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Dhir, R. K., & Jones, M. R. (1990). Influence of PFA on proportion of free chlorides in salt contaminated concrete. In C. L. Page, K. W. J. Treadaway, & P. B. Bamforth (Eds.), Corrosion of reinforcement in concrete: papers presented at the Third International Symposium on "Corrosion of Reinforcement in Concrete Construction", held at the Belfry Hotel, Wishaw, Warwickshire, UK, 21-24 May 1990 (pp. 227-236). Elsevier.