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Characterisation of unidirectional fibre reinforced grout as a strengthening material for RC structures

2017-04-15Journal article Restricted access
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dc.contributor.authorGião, Rita
dc.contributor.authorLucio, Valter
dc.contributor.authorChastre, Carlos
dc.date.accessioned2017-02-13T10:06:48Z
dc.date.available2017-02-13T10:06:48Z
dc.date.issued2017-04-15
dc.description.abstractThe main goal of the present research work is to characterise a unidirectional fibre reinforced grout (UFRG), developed as an alternative material to strengthen RC structures using small thickness jacketing. A high performance cementitious grout reinforced with continuous and unidirectional non-woven steel fibre mat has been developed for this purpose. It was expected that the optimization of the percentage and alignment of the steel fibres would yield a more efficient fibre grout. In fact, the composite should attain higher tensile strength with continuous fibres since the fibre embedment length is enough to prevent fibre pull-out. An experimental programme was carried out to characterise the UFRG’s mechanical properties. Compressive tests were conducted on small thickness tubular specimens to enable the determination of the compressive strength and the static modulus of elasticity. The tensile strength was obtained from splitting tests performed on cubic specimens (DIN 1048-5). Semi-empirical equations, based on the experimental results, are proposed to estimate UFRG’s modulus of elasticity, compressive strength and tensile strength. Two strengthening solutions for RC structures using small thickness CFRP jacketing are presented.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationGIÃO, Rita; LÚCIO, Valter; CHASTRE, Carlos – Characterisation of unidirectional fibre reinforced grout as a strengthening material for RC structures. Construction and Building Materials. ISSN 0950-0618. Vol. 137 (2017), pp. 272–287pt_PT
dc.identifier.doihttp://dx.doi.org/10.1016/j.conbuildmat.2017.01.131pt_PT
dc.identifier.issn0950-0618
dc.identifier.urihttp://hdl.handle.net/10400.21/6794
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.relation.publisherversionhttp://ac.els-cdn.com/S0950061817301277/1-s2.0-S0950061817301277-main.pdf?_tid=67dfd302-f1d1-11e6-a758-00000aacb35e&acdnat=1486979417_80a0596b22715643416592bd34ab96e0pt_PT
dc.subjectUnidirectional steel fibrespt_PT
dc.subjectFibre reinforced groutpt_PT
dc.subjectStructuralpt_PT
dc.subjectStrengtheningpt_PT
dc.subjectExperimentalpt_PT
dc.titleCharacterisation of unidirectional fibre reinforced grout as a strengthening material for RC structurespt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage287pt_PT
oaire.citation.startPage272pt_PT
oaire.citation.titleConstruction and Building Materialspt_PT
oaire.citation.volume137pt_PT
person.familyNameGião
person.familyNameLúcio
person.familyNameChastre
person.givenNameRita
person.givenNameVálter
person.givenNameCarlos
person.identifier2687516
person.identifier.ciencia-id561D-59FE-0017
person.identifier.ciencia-idB21A-5BED-AAE7
person.identifier.orcid0000-0003-0257-3163
person.identifier.orcid0000-0002-5864-551X
person.identifier.orcid0000-0002-7708-6995
person.identifier.ridH-4228-2016
person.identifier.ridF-8046-2014
person.identifier.ridC-6746-2008
person.identifier.scopus-author-id55484420900
person.identifier.scopus-author-id25927360600
person.identifier.scopus-author-id36008057200
rcaap.rightsrestrictedAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublicationadb75989-2846-467a-898e-dd3a606377fd
relation.isAuthorOfPublication3bf70064-2de6-4205-93f8-6dde591d61da
relation.isAuthorOfPublicationf632d2fc-caf8-4621-9e21-858a26ffcfd1
relation.isAuthorOfPublication.latestForDiscovery3bf70064-2de6-4205-93f8-6dde591d61da

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