A method of ranking the aggressive nature of chloride contaminated concrete

In this work, previously reported titration data obtained on cement pastes and concretes are analysed. It is postulated that the inhibitive nature of concretes may be quantified by titrating a ground suspension to the endpoint indicated by phenolphthalein while the aggressive chloride content may be...

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Bibliographic Details
Published in:Corrosion science 2000-12, Vol.42 (12), p.2043-2049
Main Authors: Sergi, G., Glass, G.K.
Format: Article
Language:English
Subjects:
Acid neutralisation
Applied sciences
Buffering
Cement
Chloride threshold
Concrete
Corrosion
Corrosion environments
Exact sciences and technology
Metals. Metallurgy
Steel
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Summary:In this work, previously reported titration data obtained on cement pastes and concretes are analysed. It is postulated that the inhibitive nature of concretes may be quantified by titrating a ground suspension to the endpoint indicated by phenolphthalein while the aggressive chloride content may be determined from the soluble chloride at the endpoint of this titration. Thus, the aggressive nature of chloride contaminated concrete may be ranked using the ratio of the extracted chloride to acid neutralisation capacity. Not only is there a theoretical justification for this, but it is relatively simple to determine.
ISSN:0010-938X
1879-0496
DOI:10.1016/S0010-938X(00)00050-0