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Increased durability of concrete made with fine recycled concrete aggregates using superplasticizers

2016-02Journal article Restricted access
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dc.contributor.authorCartuxo, Francisco
dc.contributor.authorDe Brito, Jorge
dc.contributor.authorEvangelista, Luis
dc.contributor.authorRamon Jimenez, José
dc.contributor.authorLedesma, Enrique F.
dc.date.accessioned2017-07-19T13:49:23Z
dc.date.available2017-07-19T13:49:23Z
dc.date.issued2016-02
dc.description.abstractThis paper evaluates the influence of two superplasticizers (SP) on the durability properties of concrete made with fine recycled concrete aggregate (FRCA). For this purpose, three families of concrete were tested: concrete without SP, concrete made with a regular superplasticizer and concrete made with a high-performance superplasticizer. Five volumetric replacement ratios of natural sand by FRCA were tested: 0%, 10%, 30%, 50% and 100%. Two natural gravels were used as coarse aggregates. All mixes had the same particle size distribution, cement content and amount of superplasticizer. The w/c ratio was calibrated to obtain similar slump. The results showed that the incorporation of FRCA increased the water absorption by immersion, the water absorption by capillary action, the carbonation depth and the chloride migration coefficient, while the use of superplasticizers highly improved these properties. The incorporation of FRCA jeopardized the SP's effectiveness. This research demonstrated that, from a durability point of view, the simultaneous incorporation of FRCA and high-performance SP is a viable sustainable solution for structural concrete production.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationCARTUXO, Francisco [et al] - Increased durability of concrete made with fine recycled concrete aggregates using superplasticizers. Materials. ISSN: 1996-1944. Vol. 9, N.º 2 (2016), pp. 1-26pt_PT
dc.identifier.doi10.3390/ma9020098pt_PT
dc.identifier.issn1996-1944
dc.identifier.urihttp://hdl.handle.net/10400.21/7278
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.relation.publisherversionfile:///C:/Users/utilizador2/Downloads/materials-09-00098.pdfpt_PT
dc.subjectFine recycled aggregatept_PT
dc.subjectSuperplasticizerspt_PT
dc.subjectDurabilitypt_PT
dc.subjectWater absorptionpt_PT
dc.subjectChloridept_PT
dc.subjectResistancept_PT
dc.subjectcarbonation resistancept_PT
dc.titleIncreased durability of concrete made with fine recycled concrete aggregates using superplasticizerspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage26pt_PT
oaire.citation.issue2pt_PT
oaire.citation.startPage1pt_PT
oaire.citation.titleMaterialspt_PT
oaire.citation.volume9pt_PT
person.familyNameCaliço Lopes de Brito
person.familyNameFaria Rocha Evangelista
person.givenNameJorge Manuel
person.givenNameLuís Manuel
person.identifierA-4299-2008
person.identifierB-9864-2011
person.identifier.ciencia-id921D-3921-8308
person.identifier.ciencia-idA612-1A5B-D93D
person.identifier.orcid0000-0001-6766-2736
person.identifier.orcid0000-0001-8406-6864
person.identifier.scopus-author-id7003285554
person.identifier.scopus-author-id57201241744
rcaap.rightsclosedAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublicationebc80e57-531a-4fe5-ac87-4d8382b7de2e
relation.isAuthorOfPublication8463f3f2-8bac-44bf-82af-6d46db906c73
relation.isAuthorOfPublication.latestForDiscovery8463f3f2-8bac-44bf-82af-6d46db906c73

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