Please use this identifier to cite or link to this item: http://hdl.handle.net/1822/43594

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dc.contributor.authorGranja, José Luís Duartepor
dc.contributor.authorAzenha, Miguelpor
dc.date.accessioned2016-12-21T11:57:53Z-
dc.date.issued2016-09-
dc.identifier.isbn9783035710441por
dc.identifier.issn1662-9795-
dc.identifier.urihttp://hdl.handle.net/1822/43594-
dc.description.abstractThis paper aims to demonstrate the feasibility of a recently proposed approach (termed VisCoDyn) to assess the viscoelastic behaviour of concrete from the earliest ages, by introducing a known dynamic excitation to a simply supported specimen. The method involves the continuous monitoring of the response of the tested sample in terms of amplitude (force and displacement), as well as the evaluation of the phase lag between the applied force and the response. The acquired data is then used to calculate the storage and loss moduli, according to procedures that are normally used in the context of material testing in polymer science. Indeed, the loss modulus is known to be relatable to the viscoelastic properties of materials. The paper presents the current state of development of the VisCoDyn test methodology together with several test results obtain in specimens that were tested during the first 24 hours of curing. Parallel testing with other techniques is also presented for referencepor
dc.description.sponsorshipFEDER funds through the Competitivity Factors Operational Programme - COMPETE and by national funds through FCT within the scope of the projects POCI-01-0145 -FEDER-007633 and POCI-01-0145-FEDER-016841 (IntegraCrete -PTDC/ECM-EST/1056/2014por
dc.language.isoengpor
dc.publisherTrans Tech Publicationspor
dc.relationPTDC/ECM-EST/1056/2014-
dc.rightsrestrictedAccesspor
dc.subjectConcretepor
dc.subjectEarly agespor
dc.subjectEarly agespor
dc.subjectViscoelastic propertiespor
dc.subjectMonitoringpor
dc.subjectDynamic testingpor
dc.titleAssessing viscoelastic properties of concrete during its early ages through forced dynamic excitation of test beamspor
dc.typeconferencePaper-
dc.peerreviewedyespor
dc.relation.publisherversionhttp://www.scientific.net/KEM.711.103por
dc.publicationstatusinfo:eu-repo/semantics/publishedVersionpor
sdum.event.date12 Set. - 14 Set. 2016por
sdum.event.typeconferencepor
degois.publication.firstPage103por
degois.publication.lastPage110por
degois.publication.locationLecco, Italypor
degois.publication.title8th International Conference on Concrete Under Severe Conditions – Environment & Loading (CONSEC 16)por
degois.publication.titleKey Engineering Materials-
degois.publication.volume711-
dc.identifier.doi10.4028/www.scientific.net/KEM.711.103por
sdum.subject.fosDomínio/Área científica::Engenharia e Tecnologia::Engenharia Civilpor
sdum.journalKey Engineering Materialspor
sdum.conferencePublication8th International Conference on Concrete Under Severe Conditions – Environment & Loading (CONSEC 16)por
Appears in Collections:ISISE - Comunicações a Conferências Internacionais

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