The use of thermogravimetric analysis to characterize the metallic slag aggregates in structural concrete

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dc.contributor.authorde Medeiros, Tiziana Azario
dc.contributor.authorFischer, Eliane Kujat
dc.contributor.authorAmoresi, Rafael Aparecido Ciola [UNESP]
dc.contributor.authorZaghete, Maria Aparecida [UNESP]
dc.contributor.authorStropa, Jusinei Meireles
dc.contributor.authorde Oliveira, Lincoln Carlos Silva
dc.contributor.authorCavalheiro, Alberto Adriano
dc.contributor.institutionUniversidade Estadual de Mato Grosso do Sul (UEMS)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2021-06-25T10:16:37Z
dc.date.available2021-06-25T10:16:37Z
dc.date.issued2020-01-01
dc.description.abstractStructural concretes must have a set of chemical characteristics to present a satisfactory resistance to the degradation in environment conditions. Besides the several types of mineralogical compositions, the calcium-rich sulfates, silicates and aluminates phases appear as majority components, but the gypsum one seems to play the most important rule in morphological changes during the concrete cure. In this work, it was carried out several characterizations in commercial Portland cement and the structural concrete sample. Nitrogen adsorption isotherms at 77 K for Portland cement showed the thermal treatment at 500 ºC does not undergo significant decreasing in surface area due the high content of porous silicates and aluminates components. The additional resistance to the corrosion of structural concretes exposed at environment conditions can be associated to presence of slag metallic aggregates, which could be characterized successfully by thermal analysis. The amount of embedded metallic component in concrete sample was detected by typical weight gain originated form oxygen incorporation above 700 ºC.en
dc.description.affiliationCDTEQ – UEMS, Rua Emílio Mascoli, 275 Centro
dc.description.affiliationCERNA UEMS, Rod. Dourados-Itahum, Km, 12. POBox 351
dc.description.affiliationLIEC –UNESP, Rua Francisco Degni, 55 Quitandinha
dc.description.affiliationUnespLIEC –UNESP, Rua Francisco Degni, 55 Quitandinha
dc.format.extent272-277
dc.identifierhttp://dx.doi.org/10.4028/www.scientific.net/MSF.1012.272
dc.identifier.citationMaterials Science Forum, v. 1012 MSF, p. 272-277.
dc.identifier.doi10.4028/www.scientific.net/MSF.1012.272
dc.identifier.issn1662-9752
dc.identifier.issn0255-5476
dc.identifier.scopus2-s2.0-85096501959
dc.identifier.urihttp://hdl.handle.net/11449/205512
dc.language.isoeng
dc.relation.ispartofMaterials Science Forum
dc.sourceScopus
dc.subjectPortland cement
dc.subjectSlag metallic aggregate
dc.subjectStructural concrete
dc.titleThe use of thermogravimetric analysis to characterize the metallic slag aggregates in structural concreteen
dc.typeTrabalho apresentado em evento

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