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High-performance self-compacting concrete with recycled aggregates from the precast industry: durability assessment

2020-06-26Journal article Open access
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dc.contributor.authorBarroqueiro, Tiago
dc.contributor.authorRaposeiro Da Silva, Pedro
dc.contributor.authorDe Brito, Jorge
dc.date.accessioned2020-07-03T15:51:41Z
dc.date.available2020-07-03T15:51:41Z
dc.date.issued2020-06-26
dc.description.abstractThe main objective of this paper is to provide the industry with a simple and practical way of disposing and recovering recycled waste from precast reinforced concrete elements rejected during the quality control process, while minimizing the consumption of natural resources in the production of concrete and, consequently, significantly reducing the environmental impact of both (construction and demolition waste and extracting natural aggregates). In other words, with this work, the intention is to evaluate the feasibility of producing high-performance self-compacting concrete with a less environmental impact, by replacing natural aggregates (NA) with fine and coarse recycled aggregates resulting from the precast industry, which allows the future use of this type of aggregates in the industrial process without reservations concerning the expected durability performance. To achieve these objectives, six types of self-compacting concrete (SCC) were produced incorporating diferente amounts of recycled aggregates. Six replacement ratios for fine recycled aggregates (FRA) and coarse recycled aggregates (CRA) were considered: (FRA/CRA) 0/0; 25/25; 50/50; 100/100; 0/100 and 100/0%. Six di_erent tests were carried out to characterize both the main concrete transport mechanisms and the main concrete degradation mechanisms, namely: the immersion water absorption test, capillary water absorption test, oxygen permeability test, chloride migration test, electrical resistivity test and carbonation test. The obtained results clearly demonstrate that, despite the negative influence of the inclusion of recycled aggregates, it is still possible to produce high-performance self-compacting concrete with perfectly acceptable durability properties.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationBARROQUEIRO, Tiago; SILVA, Pedro R. da; BRITO, Jorge de – High-performance self-compacting concrete with recycled aggregates from the precast industry: durability assessment. Buildings. ISSN 2075-5309. Vol. 10, N.º 6 (2020), pp. 1-22pt_PT
dc.identifier.doi10.3390/buildings10060113pt_PT
dc.identifier.issn2075-5309
dc.identifier.urihttp://hdl.handle.net/10400.21/12002
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherMDPIpt_PT
dc.relationSFRH/PROTEC/67426/2010 - FCTpt_PT
dc.subjectSelf-compacting concretept_PT
dc.subjectCoarse and fine recycled aggregates from the precast industrypt_PT
dc.subjectDurability propertiespt_PT
dc.titleHigh-performance self-compacting concrete with recycled aggregates from the precast industry: durability assessmentpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage22pt_PT
oaire.citation.issue6pt_PT
oaire.citation.startPage1pt_PT
oaire.citation.titleBuildingspt_PT
oaire.citation.volume10pt_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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