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dc.contributor.authorBrowning, JoAnn
dc.contributor.authorDarwin, David
dc.contributor.authorReynolds, Diane
dc.contributor.authorPendergrass, Benjamin
dc.date.accessioned2017-03-02T20:55:52Z
dc.date.available2017-03-02T20:55:52Z
dc.date.issued2011
dc.identifier.citationBrowning, J., Darwin, D., Reynolds, D., and Pendergrass, B., “Lightweight Aggregate as Internal Curing Agent to Limit Concrete Shrinkage,” ACI Materials Journal, Vol. 108, No. 6, Nov.-Dec. 2011, pp. 638-644.en_US
dc.identifier.urihttp://hdl.handle.net/1808/23331
dc.description.abstractThe effectiveness of prewetted, vacuum-saturated (PVS) lightweight aggregate (LWA) as an internal curing agent to reduce concrete shrinkage is evaluated for curing periods of 7 and 14 days. Normalweight aggregate is replaced by LWA at volume replacement levels ranging from 8.9 to 13.8%. Some mixtures contain a partial replacement of portland cement with slag cement while maintaining the paste content at approximately 24.1% of concrete volume. Comparisons are made with mixtures containing low-absorption granite and high absorption limestone normalweight coarse aggregates. At the replacement levels used in this study, PVS LWA results in a small reduction in concrete density, no appreciable effect on concrete compressive strength, and a substantial decrease in concrete shrinkage for drying periods up to 365 days. Increasing the curing period from 7 to 14 days reduces concrete shrinkage. Thirty and 60% volume replacements of portland cement by slag cement result in reduced shrinkage when used with a porous LWA or normalweight aggregate. After 30 and 365 days of drying, all mixtures with LWA exhibited less shrinkage than the mixtures with either low- or high-absorption normalweight aggregates.en_US
dc.publisherAmerican Concrete Instituteen_US
dc.relation.isversionofhttps://iri.ku.edu/reportsen_US
dc.subjectBridge decksen_US
dc.subjectCrackingen_US
dc.subjectCuringen_US
dc.subjectDrying shrinkageen_US
dc.subjectLightweight aggregateen_US
dc.subjectSlag cementen_US
dc.subjectVacuum saturationen_US
dc.titleLightweight Aggregate as Internal Curing Agent to Limit Concrete Shrinkageen_US
dc.typeArticleen_US
kusw.kuauthorDarwin, David
kusw.kudepartmentCivil/Environ/Arch Engineeringen_US
kusw.oanotes2016/01/06: The institute granted permission to share these on KU Scholarworks: From: Lequesne, Remy D Sent: Wednesday, January 06, 2016 10:13 AM To: Reed, Marianne A. <mreed@ku.edu> Subject: RE: Question re: digital publishing

Marianne,

I’ve heard nothing but favorable feedback about getting the reports at http://iri.ku.edu/reports into KU Scholarworks.

How do we get started? Can we try a couple and see how it goes?

Thanks

************************************************ Rémy Lequesne, PhD
en_US
kusw.oastatusna
dc.identifier.orcidhttps://orcid.org/0000-0001-5039-3525
dc.rights.accessrightsopenAccess


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