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Evaluation of Self-Compacting Concrete Strength with Non-Destructive Tests for Concrete Structures

2019Journal article Open access
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dc.contributor.authorNepomuceno, Miguel
dc.contributor.authorBernardo, Luís
dc.date.accessioned2020-01-22T12:28:32Z
dc.date.available2020-01-22T12:28:32Z
dc.date.issued2019
dc.description.abstractSelf-compacting concrete (SCC) shows to have some specificities when compared to normal vibrated concrete (NVC), namely higher cement paste dosage and smaller volume of coarse aggregates. In addition, the maximum size of coarse aggregates is also reduced in SCC to prevent blocking effect. Such specificities are likely to affect the results of non-destructive tests when compared to those obtained in NVC with similar compressive strength and materials. This study evaluates the applicability of some non-destructive tests to estimate the compressive strength of SCC. Selected tests included the ultrasonic pulse velocity test (PUNDIT), the surface hardness test (Schmidt rebound hammer type N), the pull-out test (Lok-test), and the concrete maturity test (COMA-meter). Seven sets of SCC specimens were produced in the laboratory from a single mixture and subjected to standard curing. The tests were applied at different ages, namely: 1, 2, 3, 7, 14, 28, and 94 days. The concrete compressive strength ranged from 45 MPa (at 24 h) to 97 MPa (at 94 days). Correlations were established between the non-destructive test results and the concrete compressive strength. A test variability analysis was performed and the 95% confidence limits for the obtained correlations were computed. The obtained results for SCC showed good correlations between the concrete compressive strength and the non-destructive tests results, although some differences exist when compared to the correlations obtained for NVC.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationMiguel C. S. Nepomuceno, Luís F. A. Bernardo, Evaluation of self-compacting concrete strength with non-destructive tests for concrete structures, Applied Sciences 9(23) (2019) 5109. doi:10.3390/app9235109.pt_PT
dc.identifier.doi10.3390/app9235109pt_PT
dc.identifier.issn2076-3417
dc.identifier.urihttp://hdl.handle.net/10400.6/8583
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherMDPI AG, Basel, Switzerlandpt_PT
dc.relationCentre of Materials and Building Technologies
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectSelf-compacting concretept_PT
dc.subjectNon-destructive test methodspt_PT
dc.subjectCompressive strengthpt_PT
dc.subjectUltrasonic pulse velocity testpt_PT
dc.subjectSurface hardness testpt_PT
dc.subjectPull-out testpt_PT
dc.subjectMaturity testpt_PT
dc.subjectWithin-test variabilitypt_PT
dc.subjectNormal vibrated concretept_PT
dc.titleEvaluation of Self-Compacting Concrete Strength with Non-Destructive Tests for Concrete Structurespt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleCentre of Materials and Building Technologies
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UID%2FECI%2F04082%2F2019/PT
oaire.citation.issue23pt_PT
oaire.citation.startPage5109pt_PT
oaire.citation.titleApplied Sciencespt_PT
oaire.citation.volume9pt_PT
oaire.fundingStream6817 - DCRRNI ID
person.familyNameNepomuceno
person.familyNameBernardo
person.givenNameMiguel Costa Santos
person.givenNameLuís
person.identifierhttp://scholar.google.pt/citations?user=IguykP4AAAAJ
person.identifier305712
person.identifier.ciencia-idF710-57AF-521F
person.identifier.ciencia-id031F-9022-653B
person.identifier.orcid0000-0003-3865-490X
person.identifier.orcid0000-0003-0484-350X
person.identifier.ridO-3212-2013
person.identifier.scopus-author-idhttp://www.scopus.com/authid/detail.url?authorId=36246411800
person.identifier.scopus-author-id8070435300
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublicationd93f6f35-204d-4bd1-a38a-5ec3c39a31e3
relation.isAuthorOfPublicationc4e886be-b010-4e16-8bec-de3d9ff793e1
relation.isAuthorOfPublication.latestForDiscoveryd93f6f35-204d-4bd1-a38a-5ec3c39a31e3
relation.isProjectOfPublication679cce01-6c74-4cb0-8bdb-6ba9a32795fe
relation.isProjectOfPublication.latestForDiscovery679cce01-6c74-4cb0-8bdb-6ba9a32795fe

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