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

Detalhes bibliográficos
Autor(a) principal: de Medeiros, Tiziana Azario
Data de Publicação: 2020
Outros Autores: Fischer, Eliane Kujat, Amoresi, Rafael Aparecido Ciola [UNESP], Zaghete, Maria Aparecida [UNESP], Stropa, Jusinei Meireles, de Oliveira, Lincoln Carlos Silva, Cavalheiro, Alberto Adriano
Tipo de documento: Artigo de conferência
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.4028/www.scientific.net/MSF.1012.272
http://hdl.handle.net/11449/205512
Resumo: Structural 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.
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spelling The use of thermogravimetric analysis to characterize the metallic slag aggregates in structural concretePortland cementSlag metallic aggregateStructural concreteStructural 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.CDTEQ – UEMS, Rua Emílio Mascoli, 275 CentroCERNA UEMS, Rod. Dourados-Itahum, Km, 12. POBox 351LIEC –UNESP, Rua Francisco Degni, 55 QuitandinhaLIEC –UNESP, Rua Francisco Degni, 55 QuitandinhaUniversidade Estadual de Mato Grosso do Sul (UEMS)Universidade Estadual Paulista (Unesp)de Medeiros, Tiziana AzarioFischer, Eliane KujatAmoresi, Rafael Aparecido Ciola [UNESP]Zaghete, Maria Aparecida [UNESP]Stropa, Jusinei Meirelesde Oliveira, Lincoln Carlos SilvaCavalheiro, Alberto Adriano2021-06-25T10:16:37Z2021-06-25T10:16:37Z2020-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObject272-277http://dx.doi.org/10.4028/www.scientific.net/MSF.1012.272Materials Science Forum, v. 1012 MSF, p. 272-277.1662-97520255-5476http://hdl.handle.net/11449/20551210.4028/www.scientific.net/MSF.1012.2722-s2.0-85096501959Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengMaterials Science Foruminfo:eu-repo/semantics/openAccess2021-10-23T14:48:08Zoai:repositorio.unesp.br:11449/205512Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462021-10-23T14:48:08Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv The use of thermogravimetric analysis to characterize the metallic slag aggregates in structural concrete
title The use of thermogravimetric analysis to characterize the metallic slag aggregates in structural concrete
spellingShingle The use of thermogravimetric analysis to characterize the metallic slag aggregates in structural concrete
de Medeiros, Tiziana Azario
Portland cement
Slag metallic aggregate
Structural concrete
title_short The use of thermogravimetric analysis to characterize the metallic slag aggregates in structural concrete
title_full The use of thermogravimetric analysis to characterize the metallic slag aggregates in structural concrete
title_fullStr The use of thermogravimetric analysis to characterize the metallic slag aggregates in structural concrete
title_full_unstemmed The use of thermogravimetric analysis to characterize the metallic slag aggregates in structural concrete
title_sort The use of thermogravimetric analysis to characterize the metallic slag aggregates in structural concrete
author de Medeiros, Tiziana Azario
author_facet de Medeiros, Tiziana Azario
Fischer, Eliane Kujat
Amoresi, Rafael Aparecido Ciola [UNESP]
Zaghete, Maria Aparecida [UNESP]
Stropa, Jusinei Meireles
de Oliveira, Lincoln Carlos Silva
Cavalheiro, Alberto Adriano
author_role author
author2 Fischer, Eliane Kujat
Amoresi, Rafael Aparecido Ciola [UNESP]
Zaghete, Maria Aparecida [UNESP]
Stropa, Jusinei Meireles
de Oliveira, Lincoln Carlos Silva
Cavalheiro, Alberto Adriano
author2_role author
author
author
author
author
author
dc.contributor.none.fl_str_mv Universidade Estadual de Mato Grosso do Sul (UEMS)
Universidade Estadual Paulista (Unesp)
dc.contributor.author.fl_str_mv de Medeiros, Tiziana Azario
Fischer, Eliane Kujat
Amoresi, Rafael Aparecido Ciola [UNESP]
Zaghete, Maria Aparecida [UNESP]
Stropa, Jusinei Meireles
de Oliveira, Lincoln Carlos Silva
Cavalheiro, Alberto Adriano
dc.subject.por.fl_str_mv Portland cement
Slag metallic aggregate
Structural concrete
topic Portland cement
Slag metallic aggregate
Structural concrete
description Structural 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.
publishDate 2020
dc.date.none.fl_str_mv 2020-01-01
2021-06-25T10:16:37Z
2021-06-25T10:16:37Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/conferenceObject
format conferenceObject
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://dx.doi.org/10.4028/www.scientific.net/MSF.1012.272
Materials Science Forum, v. 1012 MSF, p. 272-277.
1662-9752
0255-5476
http://hdl.handle.net/11449/205512
10.4028/www.scientific.net/MSF.1012.272
2-s2.0-85096501959
url http://dx.doi.org/10.4028/www.scientific.net/MSF.1012.272
http://hdl.handle.net/11449/205512
identifier_str_mv Materials Science Forum, v. 1012 MSF, p. 272-277.
1662-9752
0255-5476
10.4028/www.scientific.net/MSF.1012.272
2-s2.0-85096501959
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Materials Science Forum
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 272-277
dc.source.none.fl_str_mv Scopus
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
repository.mail.fl_str_mv
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