Modelling of chloride binding related to hydration products in slag-blended cements

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Abstract

An improved hydration model of slag-blended cements, taking into account new insights, is used to estimate and quantify the hydration products of slag-blended cements. Individual chloride binding isotherms are used to correlate these amounts of hydration products with the amount of bound chlorides. A number of parameters are directly or indirectly taken into account when estimating the chloride binding ability of a slag-blended cement paste: cement composition, slag content, water/binder ratio, curing age, and free chloride concentration. The model allows the study of the breakdown of bound chlorides by hydration products and their source – either the OPC or the slag.
Original languageEnglish
Pages (from-to)421-430
Number of pages10
JournalConstruction and Building Materials
Volume64
DOIs
Publication statusPublished - 2014

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