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Strategies to mitigate shrinkage in an intermediate strength self-compacting concrete

2020Journal article Restricted access
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dc.contributor.authorOliveira, M. J.
dc.contributor.authorBettencourt Ribeiro, Antonio
dc.contributor.authorBranco, Fernando G.
dc.date.accessioned2021-06-24T11:35:53Z
dc.date.available2021-06-24T11:35:53Z
dc.date.issued2020
dc.description.abstractSelf-compacting concrete (SCC) is a concrete that does not require vibration for casting and consolidation. It is able to flow under its own weight, completely filling the formwork and achieving full consolidation, even in the presence of congested reinforcement. SCC possesses special technical features and properties that recommend its application in a considerable amount of applications. Nevertheless, an inadequate behavior of the material at early ages has been observed in some situations, due to shrinkage. Shrinkage has a significant importance in the design, construction and in-service performance of concrete structures. The regulatory requirements were derived from experience with traditional concrete, which is not always suitable for SCC. In addition, the option of using new materials, such as binders with large amount of pozzolanic or latent hydraulic additions, strongly limits the validity of existing rules. In order to contribute for a better understanding of the major drawback of this material-its high potential shrinkage, experimental research was carried out using different commercial shrinkage-compensating products. This study focuses on the use of a shrinkage reducing admixture and an expansive agent. The results obtained demonstrate the efficiency of the individual or combined use of these products and allowed identifying three different strategies to control the shrinkage, with distinct levels of efficiency.
dc.description.sponsorshipFEDER funds through the Competitivity Factors Operational Programme-COMPETE
dc.description.sponsorshipFCT-Foundation for Science and TechnologyPortuguese Foundation for Science and Technology [POCI-01-0145-FEDER-007633]
dc.description.sponsorshipRegional Operational Programme CENTRO2020 [CENTRO-01-0145-FEDER-000006]
dc.description.versioninfo:eu-repo/semantics/publishedVersion
dc.identifier.doi10.1002/suco.201900456
dc.identifier.issn1464-4177
dc.identifier.urihttp://hdl.handle.net/10400.1/16566
dc.language.isoeng
dc.peerreviewedyes
dc.publisherWiley-VCH Verlag
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectExpansive binder
dc.subjectSelf-compacting concrete
dc.subjectShrinkage programmed concrete
dc.subjectShrinkage reducing admixtures
dc.subjectShrinkage reducing strategies
dc.subject.otherConstruction & Building Technology; Engineering
dc.titleStrategies to mitigate shrinkage in an intermediate strength self-compacting concrete
dc.typejournal article
dspace.entity.typePublication
oaire.citation.titleStructural Concrete
person.familyNameOliveira
person.givenNameMiguel José
person.identifier.ciencia-idE012-0342-0756
person.identifier.orcid0000-0002-3042-0802
person.identifier.ridT-2877-2017
person.identifier.scopus-author-id57205447350
rcaap.rightsrestrictedAccess
rcaap.typearticle
relation.isAuthorOfPublication5a5c455d-c0d4-4ba6-a582-45710631c42d
relation.isAuthorOfPublication.latestForDiscovery5a5c455d-c0d4-4ba6-a582-45710631c42d

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