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Durability and shrinkage performance of concrete made with coarse multi-recycled concrete aggregates

2021-02-22Journal article Restricted access
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dc.contributor.authorSilva, Stefano
dc.contributor.authorEvangelista, Luis
dc.contributor.authorDe Brito, Jorge
dc.date.accessioned2021-02-22T14:45:48Z
dc.date.available2021-02-22T14:45:48Z
dc.date.issued2021-02-22
dc.description.abstractSince construction is one of the most environmental impacting activities in existence, it is important to study and develop solutions to make its processes more efficient. Thus, multiple-recycling of concrete presents itself as a possible alternative for the reutilization of construction and demolition waste (CDW) over a large period of time. This paper presents the results and conclusions obtained from an extensive experimental campaign intended to study the durability performance of concrete made with aggregates resulting from multiple recycling cycles. Concrete mixes with 25% and 100% of substitution of natural coarse aggregates with recycled coarse concrete aggregates obtained from one, two and three recycling cycles were produced. Tests such as sieve analysis, water absorption, particle density, shape index, particle bulk density and Los Angeles abrasion were made to study the recycled coarse aggregates properties. Additionally, the workability and bulk density of fresh concrete were measured, and water absorption by immersion and capillarity, carbonation and chloride penetration were assessed to evaluate the durability performance of hardened concrete, as well as shrinkage. The results obtained in the various tests show that, with the increase of recycling cycles, the recycled coarse aggregates demonstrate a quality decrease in their properties, resulting in a worse durability and shrinkage performance of the resulting concrete. Furthermore, it is shown that the decrease in performance tends to slow down with the increase of the recycling cycles, thus presenting an asymptotic behaviour. However, in most cases, it was not possible to establish that three recycling cycles were enough to stabilize the properties.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationSILVA, Stefano; EVANGELISTA, Luís; BRITO, Jorge de – Durability and shrinkage performance of concrete made with coarse multi-recycled concrete aggregates. Construction and Building Materials. ISSN 0950-0618. Vol. 272 (2021), pp. 1-9pt_PT
dc.identifier.doi10.1016/j.conbuildmat.2020.121645pt_PT
dc.identifier.issn0950-0618
dc.identifier.urihttp://hdl.handle.net/10400.21/12913
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.relation.publisherversionhttps://reader.elsevier.com/reader/sd/pii/S0950061820336497?token=8D01A6DF1475F456887EA7C2271DCACAD7393055C1914CE89B9AC5AE7B1A7239D8E9D975B5A07A339633FD9AAF80CD0Ept_PT
dc.subjectConcretept_PT
dc.subjectCoarse recycled aggregatespt_PT
dc.subjectMultiple recyclingpt_PT
dc.subjectDurabilitypt_PT
dc.subjectShrinkagept_PT
dc.subjectCarbonationpt_PT
dc.subjectChloride penetrationpt_PT
dc.subjectWater absorptionpt_PT
dc.titleDurability and shrinkage performance of concrete made with coarse multi-recycled concrete aggregatespt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage9pt_PT
oaire.citation.startPage1pt_PT
oaire.citation.titleConstruction and Building Materialspt_PT
oaire.citation.volume272pt_PT
person.familyNameFaria Rocha Evangelista
person.familyNameCaliço Lopes de Brito
person.givenNameLuís Manuel
person.givenNameJorge Manuel
person.identifierB-9864-2011
person.identifierA-4299-2008
person.identifier.ciencia-idA612-1A5B-D93D
person.identifier.ciencia-id921D-3921-8308
person.identifier.orcid0000-0001-8406-6864
person.identifier.orcid0000-0001-6766-2736
person.identifier.scopus-author-id57201241744
person.identifier.scopus-author-id7003285554
rcaap.rightsclosedAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication8463f3f2-8bac-44bf-82af-6d46db906c73
relation.isAuthorOfPublicationebc80e57-531a-4fe5-ac87-4d8382b7de2e
relation.isAuthorOfPublication.latestForDiscovery8463f3f2-8bac-44bf-82af-6d46db906c73

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