Aggregate expansivity due to sulfied oxidation - I. Reaction system and rate model

Casanova Hormaechea, Ignasi; Agulló Fité, Luís; Aguado de Cea, Antonio

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Casanova Hormaechea, Ignasi

Agulló Fité, Luís

Aguado de Cea, Antonio

Document typeArticle

Defense date1996

PublisherAggregate expansivity due to sulfied oxidation - I. Reaction system and rate model

Rights accessOpen Access

Except where otherwise noted, content on this work is licensed under a Creative Commons license : Attribution-NonCommercial-NoDerivs 3.0 Spain

Abstract

Oxidation and hydration of sulfides in aggregate materials can yield to expansive reactions that affect the durability of concrete. This process is, in principle, independent from the potential alkali-aggregate reactivity, and the oxidation of the sulfide is the rate-limiting reaction. A model is presented to evaluate the kinetic evolution of expansion due to sulfide oxidation, and subsequent sulfate attack on the paste.

CitationCasanova, I.; Agulló, L.; Aguado, A. Aggregate expansivity due to sulfied oxidation - I. Reaction system and rate model. Cement and concrete research. 1996, vol. 26, no. 7, pp. 993-998.

URIhttp://hdl.handle.net/2117/2490

Publisher versionhttp://www.elsevier.com/wps/find/journaldescription.cws_home/352/description#description

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