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Durability evaluation of self-compacting concrete with recycled aggregates from the precast industry

2019-12Journal article Open access
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dc.contributor.authorSantos, Sara Almeida
dc.contributor.authorRaposeiro Da Silva, Pedro
dc.contributor.authorDe Brito, Jorge
dc.date.accessioned2020-03-12T10:14:20Z
dc.date.available2020-03-12T10:14:20Z
dc.date.issued2019-12
dc.description.abstractThis paper describes an experimental campaign developed with the aim of evaluating the influence of the incorporation of fine and coarse recycled aggregates (FRA and CRA, respectively) on the durability properties of selfcompacting concrete (SCC). The main objective is to provide the precast industry with an alternative way of disposal and recovery of self-generated waste, minimising the consumption of natural resources and, consequently, significantly reducing the environmental impact associated with the manufacture of concrete. For this purpose, two families of concrete were produced, distinct in terms of the compressive strength of the source concrete of the recycled aggregates (45 MPa and 65 MPa), with FRA/CRA incorporation ratios of 0/0%, 25/25%, 50/50%, 0/100% and 100/0%. To evaluate the durability of the concretes, tests for water absorption, capillary absorption, oxygen permeability, electrical resistivity, chloride penetration and carbonation resistance were performed in the hardened state. The results revealed that the concrete mixes with recycled aggregate incorporated showed worse performance than the reference mixes. However, taking all the studied properties into account, it is possible to conclude that recycled aggregates from the precast concrete industry are of very good quality and can be incorporated in the production of SCC with ratios of 25/25% and 0/100% as recommended limits.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationSANTOS, Sara Almeida; SILVA, Pedro Raposeiro da; BRITO, Jorge de – Durability evaluation of self-compacting concrete with recycled aggregates from the precast industry. Magazine of Concrete Research. ISSN 0024-9831. Vol. 71, N.º 24 (2019), pp. 1265-1282pt_PT
dc.identifier.doihttps://doi.org/10.1680/jmacr.18.00225pt_PT
dc.identifier.issn0024-9831
dc.identifier.issn1751-763X
dc.identifier.urihttp://hdl.handle.net/10400.21/11234
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherICE Publishingpt_PT
dc.relationSFRH/PROTEC/67426/2010 - FCTpt_PT
dc.relation.publisherversionhttps://www.icevirtuallibrary.com/doi/pdf/10.1680/jmacr.18.00225pt_PT
dc.subjectAggregatespt_PT
dc.subjectDurability-related propertiespt_PT
dc.subjectSustainabilitypt_PT
dc.titleDurability evaluation of self-compacting concrete with recycled aggregates from the precast industrypt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage1282pt_PT
oaire.citation.issue24pt_PT
oaire.citation.startPage1265pt_PT
oaire.citation.titleMagazine of Concrete Researchpt_PT
oaire.citation.volume71pt_PT
person.familyNameSoares Raposeiro da Silva
person.familyNameCaliço Lopes de Brito
person.givenNamePedro Miguel
person.givenNameJorge Manuel
person.identifierA-4299-2008
person.identifier.ciencia-idFC17-45FB-A606
person.identifier.ciencia-id921D-3921-8308
person.identifier.orcid0000-0001-8770-8439
person.identifier.orcid0000-0001-6766-2736
person.identifier.ridA-1832-2012
person.identifier.scopus-author-id56585411500
person.identifier.scopus-author-id7003285554
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication94ce96d2-f413-4edc-90e7-3bf4f5ea6ab6
relation.isAuthorOfPublicationebc80e57-531a-4fe5-ac87-4d8382b7de2e
relation.isAuthorOfPublication.latestForDiscoveryebc80e57-531a-4fe5-ac87-4d8382b7de2e

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