Avaliação das propriedades mecânicas e microestrutura de concreto de ultra alto desempenho com adições minerais e resíduos industriais
Ano de defesa: | 2020 |
---|---|
Autor(a) principal: | |
Orientador(a): | |
Banca de defesa: | , , , |
Tipo de documento: | Tese |
Tipo de acesso: | Acesso aberto |
Idioma: | por |
Instituição de defesa: |
Universidade Federal de Santa Maria
Centro de Tecnologia |
Programa de Pós-Graduação: |
Programa de Pós-Graduação em Engenharia Civil
|
Departamento: |
Engenharia Civil
|
País: |
Brasil
|
Palavras-chave em Português: | |
Palavras-chave em Inglês: | |
Área do conhecimento CNPq: | |
Link de acesso: | http://repositorio.ufsm.br/handle/1/19866 |
Resumo: | With the increase in the world population, civil construction is the largest consumer of resources, with great environmental impact. One of the ways to reduce this impact is to increase the mechanical strength of the concrete, reducing the resistant sections of the structural parts, dematerializing them from the emanation of greenhouse gases. The use of industrial and pozzolan waste in concrete, in addition to the packaging of particles, are concrete actions that reduce environmental impacts, increasing sustainability. Thus, the general objective of this research was to analyze the microstructure and physical-mechanical properties of ultra high performance concrete (UHPC) with hydrated lime, foundry sand, pozzolanic and inert mineral additions, through the packaging effects of the particles. The specific objectives were: to evaluate the workability of UHPC with rice husk ash (RHA), fly ash (FA), lime CH I, limestone filler (LF), quartz powder and foundry sand, in relation to the reference concrete, with structural white cement, silica fume (SF), quartz powder and sand industrial; study the packaging of particles by the modified Andreassen method; analyze the performance of variables related to the mechanical strength of concrete in wet and thermal cures: axial compression, modulus of elasticity and instrumented breaks; and analyze the microstructure of UHPC mixtures by: X-Ray Diffraction (XRD), Thermogravimetric Analysis (TG/DTG), Fourier Transform Infrared (FTIR) and Scanning Electron Microscopy (SEM/EDS). The greatest resistance for all ages was the REF mixture. The efficiency of thermal curing was verified, mainly in early ages, with emphasis on the mixture with 15% partial replacement of cement with rice husk ash (RHA15). For mixtures with mineral additions, the similar behavior was noticeable. This performance confirms that the physical effect was representative, because, even with changes in levels and types of mineral additions, the average clinker intensity did not vary significantly. The elasticity modules showed the same trend of resistance behavior. In instrumented breaks, the stresses were proportional to the specific deformations in almost the entire test. In mixtures with mineral additions (RHA15, FA15, RHA10-FA5 and RHA10-LF5), the deformations were greater, attesting to the less fragile behavior. In XRD, the presence of non-hydrated compounds (alite and belite) was observed due to the low a / mc ratio. In mixtures with the addition of lime there was an increase in the peaks of portlandite and calcite, showing that a portion of the lime did not react with the pozzolana. In TG-DTG, mixtures with mineral additions had higher levels of combined water, calcium hydroxide (CH) and carbonates than REF, attesting that the lime partially reacted with the pozzolan. In FTIR, the REF mixture showed low peaks of portlandite, the opposite behavior of mixtures with mineral additions. In SEM, it was found that mixtures with mineral additions showed higher levels of Ca / Si ratio when compared to the reference concrete. |
id |
UFSM_cb1522b29efeaae0b4f900e8f9656e59 |
---|---|
oai_identifier_str |
oai:repositorio.ufsm.br:1/19866 |
network_acronym_str |
UFSM |
network_name_str |
Biblioteca Digital de Teses e Dissertações do UFSM |
repository_id_str |
|
spelling |
2020-05-15T16:18:15Z2020-05-15T16:18:15Z2020-01-07http://repositorio.ufsm.br/handle/1/19866With the increase in the world population, civil construction is the largest consumer of resources, with great environmental impact. One of the ways to reduce this impact is to increase the mechanical strength of the concrete, reducing the resistant sections of the structural parts, dematerializing them from the emanation of greenhouse gases. The use of industrial and pozzolan waste in concrete, in addition to the packaging of particles, are concrete actions that reduce environmental impacts, increasing sustainability. Thus, the general objective of this research was to analyze the microstructure and physical-mechanical properties of ultra high performance concrete (UHPC) with hydrated lime, foundry sand, pozzolanic and inert mineral additions, through the packaging effects of the particles. The specific objectives were: to evaluate the workability of UHPC with rice husk ash (RHA), fly ash (FA), lime CH I, limestone filler (LF), quartz powder and foundry sand, in relation to the reference concrete, with structural white cement, silica fume (SF), quartz powder and sand industrial; study the packaging of particles by the modified Andreassen method; analyze the performance of variables related to the mechanical strength of concrete in wet and thermal cures: axial compression, modulus of elasticity and instrumented breaks; and analyze the microstructure of UHPC mixtures by: X-Ray Diffraction (XRD), Thermogravimetric Analysis (TG/DTG), Fourier Transform Infrared (FTIR) and Scanning Electron Microscopy (SEM/EDS). The greatest resistance for all ages was the REF mixture. The efficiency of thermal curing was verified, mainly in early ages, with emphasis on the mixture with 15% partial replacement of cement with rice husk ash (RHA15). For mixtures with mineral additions, the similar behavior was noticeable. This performance confirms that the physical effect was representative, because, even with changes in levels and types of mineral additions, the average clinker intensity did not vary significantly. The elasticity modules showed the same trend of resistance behavior. In instrumented breaks, the stresses were proportional to the specific deformations in almost the entire test. In mixtures with mineral additions (RHA15, FA15, RHA10-FA5 and RHA10-LF5), the deformations were greater, attesting to the less fragile behavior. In XRD, the presence of non-hydrated compounds (alite and belite) was observed due to the low a / mc ratio. In mixtures with the addition of lime there was an increase in the peaks of portlandite and calcite, showing that a portion of the lime did not react with the pozzolana. In TG-DTG, mixtures with mineral additions had higher levels of combined water, calcium hydroxide (CH) and carbonates than REF, attesting that the lime partially reacted with the pozzolan. In FTIR, the REF mixture showed low peaks of portlandite, the opposite behavior of mixtures with mineral additions. In SEM, it was found that mixtures with mineral additions showed higher levels of Ca / Si ratio when compared to the reference concrete.Com o aumento da população mundial, a construção civil é a maior consumidora de recursos, com grande impacto ambiental. Uma das maneiras de diminuir esse impacto é aumentar a resistência mecânica do concreto, reduzindo as seções resistentes das peças estruturais, desmaterializando-as da emanação dos gases do efeito estufa. A utilização no concreto de resíduos industriais e pozolana, além do empacotamento das partículas, são ações concretas que diminuem os impactos ambientais, aumentando a sustentabilidade. Assim, o objetivo geral desta pesquisa foi analisar a microestrutura e propriedades físico-mecânicas de concreto de ultra alto desempenho (CUAD) com cal hidratada, areia de fundição, adições minerais pozolânicas e inerte, através dos efeitos de empacotamento das partículas. Os objetivos específicos foram: avaliar a trabalhabilidade do CUAD com cinza de casca de arroz (CCA), cinza volante (CV), cal CH I, fíler calcário, pó de quartzo e areia de fundição, em relação ao concreto de referência, com cimento branco estrutural, sílica ativa, pó de quartzo e areia industrial; estudar o empacotamento das partículas pelo método de Andreassen modificado; analisar o desempenho das variáveis relacionadas com a resistência mecânica do concreto em curas úmida e térmica: compressão axial, módulo de elasticidade e rompimentos instrumentados; analisar a microestrutura das misturas do CUAD por: Difração de Raios X (DRX), Análise termogravimétrica (TG/DTG), Infravermelho com transformada de Fourier (FTIR) e Microscopia Eletrônica de Varredura MEV/EDS. As maiores resistências para todas as idades foram da mistura REF. Verificou-se a eficiência da cura térmica, principalmente em idades iniciais, com destaque para a mistura com 15% de substituição parcial de cimento por cinza de casca de arroz (CCA15). Para as misturas com adições minerais, ficou perceptível o comportamento semelhante. Esse desempenho ratifica que o efeito físico foi representativo, pois, mesmo com alterações de teores e de tipos de adições minerais, a intensidade de clínquer média não variou significativamente. Os módulos de elasticidade apresentaram a mesma tendência de comportamento da resistência. Nos rompimentos instrumentados as tensões foram proporcionais às deformações específicas em quase todo o ensaio. Nas misturas com adições minerais (CCA15, CV15, CCA10-CV5 e CCA10-FC5), as deformações foram maiores, atestando o comportamento menos frágil. No DRX, observou-se presença de compostos não hidratados (alita e belita) devido à baixa relação a/mc. Nas misturas com adição de cal houve acréscimo nos picos de portlandita e calcita, evidenciando que uma parcela da cal não reagiu com a pozolana. No TG-DTG as misturas com adições minerais tiveram maiores níveis de água combinada, hidróxido de cálcio (CH) e carbonatos que a REF, atestando que a cal reagiu parcialmente com a pozolana. No FTIR a mistura REF apresentou baixos picos de portlandita, comportamento oposto das misturas com adições minerais. No MEV, verificou-se que as misturas com adições minerais apresentaram níveis mais elevados de relação Ca/Si quando comparados ao concreto referência.porUniversidade Federal de Santa MariaCentro de TecnologiaPrograma de Pós-Graduação em Engenharia CivilUFSMBrasilEngenharia CivilAttribution-NonCommercial-NoDerivatives 4.0 Internationalhttp://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessConcreto de ultra alto desempenhoPropriedades mecânicasMicroestruturaSustentabilidadePozolanasEmpacotamento de partículasMicrostructureUltra high performance concreteMechanical propertiesSustainabilityPozzolansParticles packingCNPQ::ENGENHARIAS::ENGENHARIA CIVILAvaliação das propriedades mecânicas e microestrutura de concreto de ultra alto desempenho com adições minerais e resíduos industriaisEvaluation of mechanical properties and microstructure of ultra high performance concrete with mineral additions and industrial wasteinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/doctoralThesisIsaia, Geraldo Cechellahttp://lattes.cnpq.br/8260652949733370Tutikian, Bernardo Fonsecahttp://lattes.cnpq.br/9916860252080305Hoppe Filho, Juarezhttp://lattes.cnpq.br/8692521256968834Vargas, Alexandre Silva dehttp://lattes.cnpq.br/6501148372644975Lübeck, Andréhttp://lattes.cnpq.br/7511022637484145http://lattes.cnpq.br/8038983210001144Sokolovicz, Bóris Casanova3001000000036006005d5ff349-6e1b-45f0-a3fc-dfb31b446decc5c762b4-ae1d-451d-b3c8-3433bb3acd5bf18993ee-de36-4b05-b08c-ecae584ce62aa11aafd1-61d8-4a76-adf1-858f7f7146efe6a60716-9532-480b-817e-af617f323759ef9b6201-2cb1-40a2-80fa-d9652b40742areponame:Biblioteca Digital de Teses e Dissertações do UFSMinstname:Universidade Federal de Santa Maria (UFSM)instacron:UFSMORIGINALTES_PPGEC_2020_SOKOLOVICZ _BORIS_CASANOVA.pdfTES_PPGEC_2020_SOKOLOVICZ _BORIS_CASANOVA.pdfTese de Doutoradoapplication/pdf22900659http://repositorio.ufsm.br/bitstream/1/19866/1/TES_PPGEC_2020_SOKOLOVICZ%20_BORIS_CASANOVA.pdf762d483296218a57f43aac00481d7345MD51CC-LICENSElicense_rdflicense_rdfapplication/rdf+xml; charset=utf-8805http://repositorio.ufsm.br/bitstream/1/19866/2/license_rdf4460e5956bc1d1639be9ae6146a50347MD52LICENSElicense.txtlicense.txttext/plain; charset=utf-816http://repositorio.ufsm.br/bitstream/1/19866/3/license.txt6eeec7985884eb94336b41cc5308bf0fMD53TEXTTES_PPGEC_2020_SOKOLOVICZ _BORIS_CASANOVA.pdf.txtTES_PPGEC_2020_SOKOLOVICZ _BORIS_CASANOVA.pdf.txtExtracted texttext/plain436411http://repositorio.ufsm.br/bitstream/1/19866/4/TES_PPGEC_2020_SOKOLOVICZ%20_BORIS_CASANOVA.pdf.txt69108f1a30df390ebcae403951dbbf57MD54THUMBNAILTES_PPGEC_2020_SOKOLOVICZ _BORIS_CASANOVA.pdf.jpgTES_PPGEC_2020_SOKOLOVICZ _BORIS_CASANOVA.pdf.jpgIM Thumbnailimage/jpeg4450http://repositorio.ufsm.br/bitstream/1/19866/5/TES_PPGEC_2020_SOKOLOVICZ%20_BORIS_CASANOVA.pdf.jpg1451edef4c7b6c1b4532b42a1bbb523aMD551/198662021-04-26 15:05:20.871oai:repositorio.ufsm.br:1/19866Q3JlYXRpdmUgQ29tbXVucw==Biblioteca Digital de Teses e Dissertaçõeshttps://repositorio.ufsm.br/ONGhttps://repositorio.ufsm.br/oai/requestatendimento.sib@ufsm.br||tedebc@gmail.comopendoar:2021-04-26T18:05:20Biblioteca Digital de Teses e Dissertações do UFSM - Universidade Federal de Santa Maria (UFSM)false |
dc.title.por.fl_str_mv |
Avaliação das propriedades mecânicas e microestrutura de concreto de ultra alto desempenho com adições minerais e resíduos industriais |
dc.title.alternative.eng.fl_str_mv |
Evaluation of mechanical properties and microstructure of ultra high performance concrete with mineral additions and industrial waste |
title |
Avaliação das propriedades mecânicas e microestrutura de concreto de ultra alto desempenho com adições minerais e resíduos industriais |
spellingShingle |
Avaliação das propriedades mecânicas e microestrutura de concreto de ultra alto desempenho com adições minerais e resíduos industriais Sokolovicz, Bóris Casanova Concreto de ultra alto desempenho Propriedades mecânicas Microestrutura Sustentabilidade Pozolanas Empacotamento de partículas Microstructure Ultra high performance concrete Mechanical properties Sustainability Pozzolans Particles packing CNPQ::ENGENHARIAS::ENGENHARIA CIVIL |
title_short |
Avaliação das propriedades mecânicas e microestrutura de concreto de ultra alto desempenho com adições minerais e resíduos industriais |
title_full |
Avaliação das propriedades mecânicas e microestrutura de concreto de ultra alto desempenho com adições minerais e resíduos industriais |
title_fullStr |
Avaliação das propriedades mecânicas e microestrutura de concreto de ultra alto desempenho com adições minerais e resíduos industriais |
title_full_unstemmed |
Avaliação das propriedades mecânicas e microestrutura de concreto de ultra alto desempenho com adições minerais e resíduos industriais |
title_sort |
Avaliação das propriedades mecânicas e microestrutura de concreto de ultra alto desempenho com adições minerais e resíduos industriais |
author |
Sokolovicz, Bóris Casanova |
author_facet |
Sokolovicz, Bóris Casanova |
author_role |
author |
dc.contributor.advisor1.fl_str_mv |
Isaia, Geraldo Cechella |
dc.contributor.advisor1Lattes.fl_str_mv |
http://lattes.cnpq.br/8260652949733370 |
dc.contributor.referee1.fl_str_mv |
Tutikian, Bernardo Fonseca |
dc.contributor.referee1Lattes.fl_str_mv |
http://lattes.cnpq.br/9916860252080305 |
dc.contributor.referee2.fl_str_mv |
Hoppe Filho, Juarez |
dc.contributor.referee2Lattes.fl_str_mv |
http://lattes.cnpq.br/8692521256968834 |
dc.contributor.referee3.fl_str_mv |
Vargas, Alexandre Silva de |
dc.contributor.referee3Lattes.fl_str_mv |
http://lattes.cnpq.br/6501148372644975 |
dc.contributor.referee4.fl_str_mv |
Lübeck, André |
dc.contributor.referee4Lattes.fl_str_mv |
http://lattes.cnpq.br/7511022637484145 |
dc.contributor.authorLattes.fl_str_mv |
http://lattes.cnpq.br/8038983210001144 |
dc.contributor.author.fl_str_mv |
Sokolovicz, Bóris Casanova |
contributor_str_mv |
Isaia, Geraldo Cechella Tutikian, Bernardo Fonseca Hoppe Filho, Juarez Vargas, Alexandre Silva de Lübeck, André |
dc.subject.por.fl_str_mv |
Concreto de ultra alto desempenho Propriedades mecânicas Microestrutura Sustentabilidade Pozolanas Empacotamento de partículas Microstructure |
topic |
Concreto de ultra alto desempenho Propriedades mecânicas Microestrutura Sustentabilidade Pozolanas Empacotamento de partículas Microstructure Ultra high performance concrete Mechanical properties Sustainability Pozzolans Particles packing CNPQ::ENGENHARIAS::ENGENHARIA CIVIL |
dc.subject.eng.fl_str_mv |
Ultra high performance concrete Mechanical properties Sustainability Pozzolans Particles packing |
dc.subject.cnpq.fl_str_mv |
CNPQ::ENGENHARIAS::ENGENHARIA CIVIL |
description |
With the increase in the world population, civil construction is the largest consumer of resources, with great environmental impact. One of the ways to reduce this impact is to increase the mechanical strength of the concrete, reducing the resistant sections of the structural parts, dematerializing them from the emanation of greenhouse gases. The use of industrial and pozzolan waste in concrete, in addition to the packaging of particles, are concrete actions that reduce environmental impacts, increasing sustainability. Thus, the general objective of this research was to analyze the microstructure and physical-mechanical properties of ultra high performance concrete (UHPC) with hydrated lime, foundry sand, pozzolanic and inert mineral additions, through the packaging effects of the particles. The specific objectives were: to evaluate the workability of UHPC with rice husk ash (RHA), fly ash (FA), lime CH I, limestone filler (LF), quartz powder and foundry sand, in relation to the reference concrete, with structural white cement, silica fume (SF), quartz powder and sand industrial; study the packaging of particles by the modified Andreassen method; analyze the performance of variables related to the mechanical strength of concrete in wet and thermal cures: axial compression, modulus of elasticity and instrumented breaks; and analyze the microstructure of UHPC mixtures by: X-Ray Diffraction (XRD), Thermogravimetric Analysis (TG/DTG), Fourier Transform Infrared (FTIR) and Scanning Electron Microscopy (SEM/EDS). The greatest resistance for all ages was the REF mixture. The efficiency of thermal curing was verified, mainly in early ages, with emphasis on the mixture with 15% partial replacement of cement with rice husk ash (RHA15). For mixtures with mineral additions, the similar behavior was noticeable. This performance confirms that the physical effect was representative, because, even with changes in levels and types of mineral additions, the average clinker intensity did not vary significantly. The elasticity modules showed the same trend of resistance behavior. In instrumented breaks, the stresses were proportional to the specific deformations in almost the entire test. In mixtures with mineral additions (RHA15, FA15, RHA10-FA5 and RHA10-LF5), the deformations were greater, attesting to the less fragile behavior. In XRD, the presence of non-hydrated compounds (alite and belite) was observed due to the low a / mc ratio. In mixtures with the addition of lime there was an increase in the peaks of portlandite and calcite, showing that a portion of the lime did not react with the pozzolana. In TG-DTG, mixtures with mineral additions had higher levels of combined water, calcium hydroxide (CH) and carbonates than REF, attesting that the lime partially reacted with the pozzolan. In FTIR, the REF mixture showed low peaks of portlandite, the opposite behavior of mixtures with mineral additions. In SEM, it was found that mixtures with mineral additions showed higher levels of Ca / Si ratio when compared to the reference concrete. |
publishDate |
2020 |
dc.date.accessioned.fl_str_mv |
2020-05-15T16:18:15Z |
dc.date.available.fl_str_mv |
2020-05-15T16:18:15Z |
dc.date.issued.fl_str_mv |
2020-01-07 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/doctoralThesis |
format |
doctoralThesis |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://repositorio.ufsm.br/handle/1/19866 |
url |
http://repositorio.ufsm.br/handle/1/19866 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.cnpq.fl_str_mv |
300100000003 |
dc.relation.confidence.fl_str_mv |
600 600 |
dc.relation.authority.fl_str_mv |
5d5ff349-6e1b-45f0-a3fc-dfb31b446dec c5c762b4-ae1d-451d-b3c8-3433bb3acd5b f18993ee-de36-4b05-b08c-ecae584ce62a a11aafd1-61d8-4a76-adf1-858f7f7146ef e6a60716-9532-480b-817e-af617f323759 ef9b6201-2cb1-40a2-80fa-d9652b40742a |
dc.rights.driver.fl_str_mv |
Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/ info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/ |
eu_rights_str_mv |
openAccess |
dc.publisher.none.fl_str_mv |
Universidade Federal de Santa Maria Centro de Tecnologia |
dc.publisher.program.fl_str_mv |
Programa de Pós-Graduação em Engenharia Civil |
dc.publisher.initials.fl_str_mv |
UFSM |
dc.publisher.country.fl_str_mv |
Brasil |
dc.publisher.department.fl_str_mv |
Engenharia Civil |
publisher.none.fl_str_mv |
Universidade Federal de Santa Maria Centro de Tecnologia |
dc.source.none.fl_str_mv |
reponame:Biblioteca Digital de Teses e Dissertações do UFSM instname:Universidade Federal de Santa Maria (UFSM) instacron:UFSM |
instname_str |
Universidade Federal de Santa Maria (UFSM) |
instacron_str |
UFSM |
institution |
UFSM |
reponame_str |
Biblioteca Digital de Teses e Dissertações do UFSM |
collection |
Biblioteca Digital de Teses e Dissertações do UFSM |
bitstream.url.fl_str_mv |
http://repositorio.ufsm.br/bitstream/1/19866/1/TES_PPGEC_2020_SOKOLOVICZ%20_BORIS_CASANOVA.pdf http://repositorio.ufsm.br/bitstream/1/19866/2/license_rdf http://repositorio.ufsm.br/bitstream/1/19866/3/license.txt http://repositorio.ufsm.br/bitstream/1/19866/4/TES_PPGEC_2020_SOKOLOVICZ%20_BORIS_CASANOVA.pdf.txt http://repositorio.ufsm.br/bitstream/1/19866/5/TES_PPGEC_2020_SOKOLOVICZ%20_BORIS_CASANOVA.pdf.jpg |
bitstream.checksum.fl_str_mv |
762d483296218a57f43aac00481d7345 4460e5956bc1d1639be9ae6146a50347 6eeec7985884eb94336b41cc5308bf0f 69108f1a30df390ebcae403951dbbf57 1451edef4c7b6c1b4532b42a1bbb523a |
bitstream.checksumAlgorithm.fl_str_mv |
MD5 MD5 MD5 MD5 MD5 |
repository.name.fl_str_mv |
Biblioteca Digital de Teses e Dissertações do UFSM - Universidade Federal de Santa Maria (UFSM) |
repository.mail.fl_str_mv |
atendimento.sib@ufsm.br||tedebc@gmail.com |
_version_ |
1793240143280209920 |