Performance and radiological implications of using residue from TiO2 production as a component of coating mortars

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dc.contributor.authorRIBEIRO, DANIEL V.pt_BR
dc.contributor.authorAMORIM JUNIOR, NILSON S.pt_BR
dc.contributor.authorANDRADE NETO, JOSE S.pt_BR
dc.contributor.authorALBUQUERQUE, DIANA D.M.pt_BR
dc.contributor.authorMAZZILLI, BARBARA P.pt_BR
dc.coverageInternacionalpt_BR
dc.date.accessioned2021-12-30T12:11:01Z
dc.date.available2021-12-30T12:11:01Z
dc.date.issued2021pt_BR
dc.description.abstractThe objective of this study was to investigate the effect of the addition of residue from the production of TiO2, namely, unreacted ore waste (UOW), on the properties of coating mortars as well as evaluate its radiological impact. The properties of the mixed cement lime mortars were evaluated after the addition of 5%, 10%, and 15% of UOW, in relation to the cement mass, with respect to the reference mortar. The coating mortars were evaluated for rheology, dynamic elastic modulus, and mechanical strength. Tests in the applied state were performed using panels. From the point of view of radiological protection, the concentration of natural radionuclides in the residue, components of the mortar, and ready mortar were determined. In addition, the concentration of radon in the air and the exposure of dwellers living in a standard room coated with mortar were evaluated. The results obtained indicated that UOW did not compromise the use of coating mortars, presenting no significant effect on the properties of fresh, hardened, and applied states. Although the UOW presented high concentration of radionuclides, mortars with 5%, 10%, and 15% of UOW led to a gamma exposition and indoor radon concentration (average values of 0.20 mSv.a-1 and 71 Bq.m−3, respectively) below the recommended limits (1 mSv.a-1 and 100 Bq.m−3). Thus, it is concluded that UOW can be incorporated into coating mortars without presenting risks to the health of users due to radiation exposure.pt_BR
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)pt_BR
dc.description.sponsorshipIDCNPq: 300835/95-7; 301133/2018-2pt_BR
dc.format.extent1-12pt_BR
dc.identifier.citationRIBEIRO, DANIEL V.; AMORIM JUNIOR, NILSON S.; ANDRADE NETO, JOSE S.; ALBUQUERQUE, DIANA D.M.; MAZZILLI, BARBARA P. Performance and radiological implications of using residue from TiO2 production as a component of coating mortars. <b>Construction and Building Materials</b>, v. 306, p. 1-12, 2021. DOI: <a href="https://dx.doi.org/10.1016/j.conbuildmat.2021.124885">10.1016/j.conbuildmat.2021.124885</a>. Disponível em: http://repositorio.ipen.br/handle/123456789/32587.
dc.identifier.doi10.1016/j.conbuildmat.2021.124885pt_BR
dc.identifier.issn0950-0618pt_BR
dc.identifier.orcid0000-0001-7174-9703pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0001-7174-9703
dc.identifier.percentilfi88.83pt_BR
dc.identifier.percentilfiCiteScore92.00pt_BR
dc.identifier.urihttp://repositorio.ipen.br/handle/123456789/32587
dc.identifier.vol306pt_BR
dc.relation.ispartofConstruction and Building Materialspt_BR
dc.rightsopenAccesspt_BR
dc.subjectbuilding materials
dc.subjectmortars
dc.subjectore concentrates
dc.subjecttitanium oxides
dc.titlePerformance and radiological implications of using residue from TiO2 production as a component of coating mortarspt_BR
dc.typeArtigo de periódicopt_BR
dspace.entity.typePublication
ipen.autorBARBARA PACI MAZZILLI
ipen.codigoautor45
ipen.contributor.ipenauthorBARBARA PACI MAZZILLI
ipen.date.recebimento21-12
ipen.identifier.fi7.693pt_BR
ipen.identifier.fiCiteScore10.6pt_BR
ipen.identifier.ipendoc28355pt_BR
ipen.identifier.iwosWoSpt_BR
ipen.range.fi6.000 ou mais
ipen.range.percentilfi75.00 - 100.00
ipen.type.genreArtigo
relation.isAuthorOfPublication7e8b6143-512f-4b43-87a9-eb5ea497807f
relation.isAuthorOfPublication.latestForDiscovery7e8b6143-512f-4b43-87a9-eb5ea497807f
sigepi.autor.atividadeMAZZILLI, BARBARA P.:45:340:Npt_BR
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