Influence of recycled aggregates on properties of self-consolidating concretes

cic.isFulltexttruees
cic.isPeerReviewedtruees
cic.lugarDesarrolloUniversidad Nacional de La Plata es
cic.versioninfo:eu-repo/semantics/submittedVersiones
dc.date.accessioned2016-11-18T11:07:53Z
dc.date.available2016-11-18T11:07:53Z
dc.identifier.urihttps://digital.cic.gba.gob.ar/handle/11746/4736
dc.titleInfluence of recycled aggregates on properties of self-consolidating concretesen
dc.typeDocumento de conferenciaes
dcterms.abstractRecycled aggregates are made from crushed waste concretes and can be used as a replacement of natural aggregates in concrete production. Despite having lower density and higher absorption than natural aggregates, they can be used to manufacture conventional concretes with good performance if they are added in the proper amounts. To make self-consolidating concretes, the same aggregates used to manufacture conventional concretes can be used, but in order to increase segregation resistance and keep mix cohesion, a large amount of fine aggregates and a suitable admixture are required. The main goal of this work is to study the influence of recycled aggregates on self-consolidating concrete. Concretes were mixed with 50% of the coarse aggregate replaced by recycled aggregates (Patagonia gravel) and with 20% of the fine aggregate (natural sand) replaced by crushed concrete powders. Fresh concrete properties were tested, and physical and mechanical properties were determined in the hardened state. The petrographic composition of the concrete was examined to assess the interfacial transition zone and the contribution of the powders to the mortar microtexture. The results vary depending on the type of admixture and aggregate. However, it is shown that the inclusion of these crushed aggregates to make good selfconsolidating concrete is feasible.es
dcterms.creator.authorSeñas, Liliaes
dcterms.creator.authorPriano, Carlaes
dcterms.creator.authorMarfil, Silvina Andreaes
dcterms.extent8 p.es
dcterms.isPartOf.issuevol. 113es
dcterms.isPartOf.seriesConstruction and Building Materialses
dcterms.issued2016
dcterms.languageIngléses
dcterms.licenseAttribution 4.0 International (BY 4.0)es
dcterms.subjectSelf-consolidating concrete (SCC)en
dcterms.subjectRecycled aggregatesen
dcterms.subjectAdmixturesen
dcterms.subject.materiaGeologíaes

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