Characterization and reuse of spent foundry sand in the production of concrete for interlocking pavement

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dc.contributor.authorSantos, L.F. dos [UNESP]
dc.contributor.authorMagalhães, R. S. [UNESP]
dc.contributor.authorBarreto, S. S. [UNESP]
dc.contributor.authorSantos, G. T.A. [UNESP]
dc.contributor.authorde Paiva, F. F.G.
dc.contributor.authorde Souza, A. E. [UNESP]
dc.contributor.authorTeixeira, S. R. [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUNOESTE
dc.date.accessioned2021-06-25T10:19:11Z
dc.date.available2021-06-25T10:19:11Z
dc.date.issued2021-04-01
dc.description.abstractThis paper presents the characterization of spent foundry sand mixtures (SFS-M) and a new use in the production of concrete blocks for interlocking pavement. Cylindrical and hexagonal concrete blocks were made with the total replacement of natural sand with SFS-M and their mechanical properties were evaluated. The fine aggregates were assessed by scanning electron microscopy, thermogravimetry, X-ray fluorescence and X-ray diffraction. The fresh and hardened concrete tests performed were slump, water absorption, void ratio and compressive strength. The compressive strength of samples with total replacement of natural sand with SFS-M was above 35 MPa. Water absorption was less than 6%, allowing its use as concrete pavement for light traffic. Thus, the results of this work indicated that the production of hexagonal concrete blocks with total replacement of natural sand with SFS-M is technically feasible and economically viable. The reuse of SFS reduces its disposal in landfills and also the use of natural resources resulting in less environmental impact.en
dc.description.affiliationSão Paulo State University UNESP Solid Waste Characterization and Management Laboratory, SWCML
dc.description.affiliationUniversity of Western São Paulo UNOESTE
dc.description.affiliationUnespSão Paulo State University UNESP Solid Waste Characterization and Management Laboratory, SWCML
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.description.sponsorshipCompanhia Energética de São Paulo
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipMinnesota Pharmacists Foundation
dc.identifierhttp://dx.doi.org/10.1016/j.jobe.2020.102098
dc.identifier.citationJournal of Building Engineering, v. 36.
dc.identifier.doi10.1016/j.jobe.2020.102098
dc.identifier.issn2352-7102
dc.identifier.scopus2-s2.0-85098591610
dc.identifier.urihttp://hdl.handle.net/11449/205663
dc.language.isoeng
dc.relation.ispartofJournal of Building Engineering
dc.sourceScopus
dc.subjectCompressive strength
dc.subjectConcrete blocks
dc.subjectFoundry waste reuse
dc.subjectIndustrial waste
dc.subjectSpent foundry sand
dc.titleCharacterization and reuse of spent foundry sand in the production of concrete for interlocking pavementen
dc.typeArtigo

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