Discussion Discussion of paper "Alkali-aggregate reaction in concrete containing high-alkali cement and granite aggregate" by Z. Owsiak

This is an interesting paper in that it reports the occurrence of alkali-silica reaction (ASR) and the formation of secondary ettringite in concrete prisms stored at 38 DGC and high humidity. To the best of my knowledge, this is the first report of the occurrence of secondary ettringite in concrete...

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Bibliographic Details
Published in:Cement and concrete research 2005-09, Vol.35 (9), p.1868-1869
Main Author: Grattan-Bellew, P E
Format: Article
Language:English
Online Access:Get full text
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Summary:This is an interesting paper in that it reports the occurrence of alkali-silica reaction (ASR) and the formation of secondary ettringite in concrete prisms stored at 38 DGC and high humidity. To the best of my knowledge, this is the first report of the occurrence of secondary ettringite in concrete prisms made with an alkali-silica reactive aggregate cured in the laboratory at 38 DGC. Lawrence reported that 75 DGC was the lowest curing temperature at which expansion due to delayed ettringite formation was reported. However, alkali-silica reaction and delayed ettringite formation are frequently associated in field concretes.
ISSN:0008-8846
DOI:10.1016/j.cemconres.2004.07.028