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

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Title:	Aggregate expansivity due to sulfied oxidation - I. Reaction system and rate model
Author:	Casanova Hormaechea, Ignasi; Agulló Fité, Luís; Aguado de Cea, Antonio
Other authors:	Universitat Politècnica de Catalunya. Departament d'Enginyeria de la Construcció
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.
Abstract:	Peer Reviewed
Subject(s):	-Àrees temàtiques de la UPC::Enginyeria civil::Materials i estructures::Materials i estructures de formigó -Aggregates (Building materials) -Concrete -Alkali-aggregate reactions -Concrete -Aggregate -Experimental study -Hydration -Oxidation -Sulfides -Expansion -Alkali aggregate reaction -Formigó -Àrids -Oxidació
Rights:	Attribution-NonCommercial-NoDerivs 3.0 Spain http://creativecommons.org/licenses/by-nc-nd/3.0/es/
Document type:	Article
Published by:	Aggregate expansivity due to sulfied oxidation - I. Reaction system and rate model
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