Effect of the incorporation of aggregates with high sulfide content on the mechanical and microstructural properties of concrete with slag cement

Detalhes bibliográficos
Autor(a) principal: Gomides, Maria de Jesus
Data de Publicação: 2017
Outros Autores: Dal Molin, Denise Carpena Coitinho, Rêgo, João Henrique da Silva
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFRGS
Texto Completo: http://hdl.handle.net/10183/184451
Resumo: The mineralogical change in the sulfides present in many aggregates can affect their stability, which may undermine the performance of the concrete. This is a complex process and there is limited research in this area. In this study, we examined the influence of aggregates containing a high sulfide content on the performance of concrete containing slag cement. The sulfides present in the aggregates were initially identified and quantified. The changes at the microstructural level of the concrete caused by the sulfide-containing aggregates were then examined. These included volume changes, as well as their effect on the compressive strength and modulus of elasticity. The results show that slag cement does not reduce expansion, and it is this expansion that affects the mechanical properties of concrete.
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spelling Gomides, Maria de JesusDal Molin, Denise Carpena CoitinhoRêgo, João Henrique da Silva2018-11-08T02:46:42Z20171517-7076http://hdl.handle.net/10183/184451001080053The mineralogical change in the sulfides present in many aggregates can affect their stability, which may undermine the performance of the concrete. This is a complex process and there is limited research in this area. In this study, we examined the influence of aggregates containing a high sulfide content on the performance of concrete containing slag cement. The sulfides present in the aggregates were initially identified and quantified. The changes at the microstructural level of the concrete caused by the sulfide-containing aggregates were then examined. These included volume changes, as well as their effect on the compressive strength and modulus of elasticity. The results show that slag cement does not reduce expansion, and it is this expansion that affects the mechanical properties of concrete.application/pdfengRevista matéria [recurso eletrônico]. Rio de Janeiro, RJ. Vol. 22, n. 3 (2017), artigo e-11851, [13 p.]ConcreteEngenhariaSulfideOxidationExpansionStrengthEffect of the incorporation of aggregates with high sulfide content on the mechanical and microstructural properties of concrete with slag cementEfeito da incorporação de agregados com alto teor de sulfetos nas propriedades mecânicas e microestruturais de concretos com cimento de escória info:eu-repo/semantics/articleinfo:eu-repo/semantics/otherinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSTEXT001080053.pdf.txt001080053.pdf.txtExtracted Texttext/plain36502http://www.lume.ufrgs.br/bitstream/10183/184451/2/001080053.pdf.txtb55ad94e5ce814cfb09f73e506fa3478MD52ORIGINAL001080053.pdfTexto completo (inglês)application/pdf1068397http://www.lume.ufrgs.br/bitstream/10183/184451/1/001080053.pdff55eff399e48dba16485905b3597120eMD5110183/1844512018-11-09 02:45:50.149567oai:www.lume.ufrgs.br:10183/184451Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2018-11-09T04:45:50Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false
dc.title.pt_BR.fl_str_mv Effect of the incorporation of aggregates with high sulfide content on the mechanical and microstructural properties of concrete with slag cement
dc.title.alternative.pt.fl_str_mv Efeito da incorporação de agregados com alto teor de sulfetos nas propriedades mecânicas e microestruturais de concretos com cimento de escória
title Effect of the incorporation of aggregates with high sulfide content on the mechanical and microstructural properties of concrete with slag cement
spellingShingle Effect of the incorporation of aggregates with high sulfide content on the mechanical and microstructural properties of concrete with slag cement
Gomides, Maria de Jesus
Concrete
Engenharia
Sulfide
Oxidation
Expansion
Strength
title_short Effect of the incorporation of aggregates with high sulfide content on the mechanical and microstructural properties of concrete with slag cement
title_full Effect of the incorporation of aggregates with high sulfide content on the mechanical and microstructural properties of concrete with slag cement
title_fullStr Effect of the incorporation of aggregates with high sulfide content on the mechanical and microstructural properties of concrete with slag cement
title_full_unstemmed Effect of the incorporation of aggregates with high sulfide content on the mechanical and microstructural properties of concrete with slag cement
title_sort Effect of the incorporation of aggregates with high sulfide content on the mechanical and microstructural properties of concrete with slag cement
author Gomides, Maria de Jesus
author_facet Gomides, Maria de Jesus
Dal Molin, Denise Carpena Coitinho
Rêgo, João Henrique da Silva
author_role author
author2 Dal Molin, Denise Carpena Coitinho
Rêgo, João Henrique da Silva
author2_role author
author
dc.contributor.author.fl_str_mv Gomides, Maria de Jesus
Dal Molin, Denise Carpena Coitinho
Rêgo, João Henrique da Silva
dc.subject.En.fl_str_mv Concrete
topic Concrete
Engenharia
Sulfide
Oxidation
Expansion
Strength
dc.subject.por.fl_str_mv Engenharia
dc.subject.eng.fl_str_mv Sulfide
Oxidation
Expansion
Strength
description The mineralogical change in the sulfides present in many aggregates can affect their stability, which may undermine the performance of the concrete. This is a complex process and there is limited research in this area. In this study, we examined the influence of aggregates containing a high sulfide content on the performance of concrete containing slag cement. The sulfides present in the aggregates were initially identified and quantified. The changes at the microstructural level of the concrete caused by the sulfide-containing aggregates were then examined. These included volume changes, as well as their effect on the compressive strength and modulus of elasticity. The results show that slag cement does not reduce expansion, and it is this expansion that affects the mechanical properties of concrete.
publishDate 2017
dc.date.issued.fl_str_mv 2017
dc.date.accessioned.fl_str_mv 2018-11-08T02:46:42Z
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dc.identifier.uri.fl_str_mv http://hdl.handle.net/10183/184451
dc.identifier.issn.pt_BR.fl_str_mv 1517-7076
dc.identifier.nrb.pt_BR.fl_str_mv 001080053
identifier_str_mv 1517-7076
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url http://hdl.handle.net/10183/184451
dc.language.iso.fl_str_mv eng
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dc.relation.ispartof.pt_BR.fl_str_mv Revista matéria [recurso eletrônico]. Rio de Janeiro, RJ. Vol. 22, n. 3 (2017), artigo e-11851, [13 p.]
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reponame_str Repositório Institucional da UFRGS
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