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dc.contributor.authorGschwenter, Viviane Lopes da Silvapt_BR
dc.contributor.authorTubino, Rejane Maria Candiotapt_BR
dc.contributor.authorAmbrós, Weslei Monteiropt_BR
dc.contributor.authorMiltzarek, Gerson Luispt_BR
dc.contributor.authorSampaio, Carlos Hoffmannpt_BR
dc.contributor.authorOliva Moncunill, Joseppt_BR
dc.contributor.authorCazacliu, Bogdanpt_BR
dc.contributor.authorDal Molin, Denise Carpena Coitinhopt_BR
dc.date.accessioned2022-07-07T04:58:44Zpt_BR
dc.date.issued2022pt_BR
dc.identifier.issn2075-163Xpt_BR
dc.identifier.urihttp://hdl.handle.net/10183/242016pt_BR
dc.description.abstractThe use of recycled aggregates (RA) to replace natural aggregates (NA) in new concrete production has been pointed out as one of the main strategies to close the loop of construction materials. However, producing RA with properties similar to those of NA has been challenging, since current recycling methods struggle to remove contaminants like ceramics and mortar, whose presence impairs RA properties. In this study, a processing route consisting of a two-stage separation in hydraulic jig was tested, aiming to produce RA from a representative sample of Brazilian construction and demolition waste. All material streams generated in the tests were characterized in terms of composition, size distribution, density, shape index, and water absorption. The results indicated the possibility to produce a high-quality RA, containing more than 99.5% mass of concrete, with adequate properties to replace NA in new concrete production. Also, a conventional RA with suitable properties for downcycling uses (for example, base and sub-base material) could be obtained as a co-product. Finally, the results showed it was possible to recover more than 75% of the original concrete in Construction and Demolition Waste CDW, avoiding its disposal as waste.en
dc.format.mimetypeapplication/pdfpt_BR
dc.language.isoengpt_BR
dc.relation.ispartofMinerals [recurso eletrônico]. Basel, SZ. Vol. 12, no. 5 (2022), art. 532, 15 p.pt_BR
dc.rightsOpen Accessen
dc.subjectAgregados para construção civilpt_BR
dc.subjectRecycled aggregatesen
dc.subjectJiggingen
dc.subjectResíduos da construção civilpt_BR
dc.subjectReaproveitamento de resíduospt_BR
dc.subjectConstruction wasteen
dc.subjectRecyclingen
dc.subjectJigagempt_BR
dc.subjectDensity-based separationen
dc.titleProduction of high-quality coarse recycled aggregates through a two-stage jigging processpt_BR
dc.typeArtigo de periódicopt_BR
dc.identifier.nrb001140944pt_BR
dc.type.originEstrangeiropt_BR


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