The use of thermogravimetric analysis to characterize the metallic slag aggregates in structural concrete
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , , , , , |
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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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:29462024-08-05T17:17:19.426895Repositório 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 |
|
_version_ |
1808128785131765760 |