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NRC Publications Archive Archives des publications du CNRCThis publication could be one of several versions: author's original, accepted manuscript or the publisher's version. / La version de cette publication peut être l'une des suivantes : la version prépublication de l'auteur, la version acceptée du manuscrit ou la version de l'éditeur. For the publisher's version, please access the DOI link below./ Pour consulter la version de l'éditeur, utilisez le lien DOI ci-dessous.http://dx.doi.org/10.1016/j.cemconres. 2008.02.001 Cement and Concrete Research, 38, 6, pp. 757-765, 2008-06-01 Internal curing of high-performance concrete with pre-soaked lightweight aggregate sand for prevention of autogenous shrinkage cracking Cusson, D.; Hoogeveen, T. J.http://irc.nrc-cnrc.gc.caInternal curing of high-performance concrete with pre-soaked lightweight aggregate sand for prevention of autogenous shrinkage cracking
NRCC-50026Cusson, D.; Hoogeveen, T.A version of this document is published in / Une version de ce document se trouve dans: Cement and Concrete Research, v. 38, no. 6, pp. 757-765 doi: 10.1016Research, v. 38, no. 6, pp. 757-765 doi: 10. /j.cemconres.2008 The material in this document is covered by the provisions of the Copyright Act, by Canadian laws, policies, regulations and international agreements. Such provisions serve to identify the information source and, in specific instances, to prohibit reproduction of materials without written permission. shown that the risk of concrete cracking could be conservatively estimated from the extent of free shrinkage strain occurring after the peak expansion strain that may develop at very early ages.Autogenous expansion, observed during the first day for high levels of internal curing, can significantly reduce the risk of cracking in concrete structures, as both the elastic and creep strains develop initially in compression, enabling the tensile strength to increase further before tensile stresses start to initiate later.