Concreto aditivado com pseudoboemita e poliacrilato de sódio
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Tipo de documento: | Tese |
Idioma: | por |
Título da fonte: | Biblioteca Digital de Teses e Dissertações do Mackenzie |
Texto Completo: | https://dspace.mackenzie.br/handle/10899/28439 |
Resumo: | Pseudoboemite is a hydrated aluminum oxyhydroxide obtained from inorganic precursors by the sol-gel process and is used as a precursor to alumina as a reinforcement in obtaining nanocomposites. In this work, pseudoboemite with the addition of sodium polyacrylate was used in order to promote an increase in the spacing of the particles of pseudoboemite, which agglomerate in the material. The material obtained was added to the concrete in order to improve its workability and strength. The new concrete obtained was characterized by means of rheological, mechanical and microstructural tests. The results showed that the addition of pseudoboemite with sodium polyacrylate significantly increased the compressive strength and improved the workability of the concrete. In order to evaluate these properties, tests were made on cone trunk abatement, compression resistance test, ultrasound and characterization of the nanomaterial. The compressive strength data showed a tendency to increase the compressive strength with the addition of pseudoboemite and sodium polyacrylate. |
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2021-12-15T19:31:43Z2021-12-15T19:31:43Z2020-04-16PACHECO, Caroline Valadão. Concreto aditivado com pseudoboemita e poliacrilato de sódio. 2020. 95 f. Tese (Engenharia de Materiais e Nanotecnologia) - Universidade Presbiteriana Mackenzie, São Paulo, 2020.https://dspace.mackenzie.br/handle/10899/28439Pseudoboemite is a hydrated aluminum oxyhydroxide obtained from inorganic precursors by the sol-gel process and is used as a precursor to alumina as a reinforcement in obtaining nanocomposites. In this work, pseudoboemite with the addition of sodium polyacrylate was used in order to promote an increase in the spacing of the particles of pseudoboemite, which agglomerate in the material. The material obtained was added to the concrete in order to improve its workability and strength. The new concrete obtained was characterized by means of rheological, mechanical and microstructural tests. The results showed that the addition of pseudoboemite with sodium polyacrylate significantly increased the compressive strength and improved the workability of the concrete. In order to evaluate these properties, tests were made on cone trunk abatement, compression resistance test, ultrasound and characterization of the nanomaterial. The compressive strength data showed a tendency to increase the compressive strength with the addition of pseudoboemite and sodium polyacrylate.A pseudoboemita é um oxihidróxido hidratado de alumínio obtido a partir de precursores inorgânicos pelo processo sol-gel sendo utilizado como precursor da alumina e como reforço na obtenção de nanocompósitos. Neste trabalho foi utilizado pseudoboemita com adição de poliacrilato de sódio com a finalidade de promover um aumento no espaçamento das particulasde pseudoboemita, que tendem a se aglomerar no material. O material obtido foi adicionado ao concreto com o objetivo de melhorar a sua trabalhabilidade e a sua resistência. O novo concreto obtido foi caracterizado por meio de ensaio reológicos, mecânicos e microestruturais. Os resultados mostraram que a adição da pseudoboemita com o poliacrilato de sódio aumentou a significadamente a resistência a compressão e melhorou a trabalhabilidade do concreto. Para avaliação destas propriedades foram realizados ensaios de abatimento tronco cone, ensaio de resistência à compressão, ultrassom e caracterização do nanomaterial. Os dados de resistência a compressão mostraram uma tendência de aumento da resistência adicionado ao concreto a compressão com adição de pseudoboemita e poliacrilato de sódio.application/pdfporUniversidade Presbiteriana MackenzieEngenharia de Materiais e NanotecnologiaUPMBrasilEscola de Engenharia Mackenzie (EE)http://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessnanomateriaispseudoboemitaconcretopoliacrilato de sódioCNPQ::ENGENHARIAS::ENGENHARIA CIVILConcreto aditivado com pseudoboemita e poliacrilato de sódioinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/doctoralThesisMunhoz Junior, Antônio Hortênciohttp://lattes.cnpq.br/8233884614933594Miranda, Leila Figueiredo dehttp://lattes.cnpq.br/0218222413589119Valenzuela Diaz, Francisco Rolandohttp://lattes.cnpq.br/3539158603053300Antunes, Maria Lúcia Pereirahttp://lattes.cnpq.br/9040916399114048Setz, Luiz Fernando Grespanhttp://lattes.cnpq.br/0573757321543624http://lattes.cnpq.br/7023353178397954Pacheco, Caroline Valadãonanomaterialspseudoboemiteconcretesodium polyacrylatereponame:Biblioteca Digital de Teses e Dissertações do Mackenzieinstname:Universidade Presbiteriana Mackenzie (MACKENZIE)instacron:MACKENZIEORIGINALCAROLINE VALADÃO PACHECO.pdfCAROLINE VALADÃO 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Digital de Teses e Dissertaçõeshttp://tede.mackenzie.br/jspui/PRI |
dc.title.por.fl_str_mv |
Concreto aditivado com pseudoboemita e poliacrilato de sódio |
title |
Concreto aditivado com pseudoboemita e poliacrilato de sódio |
spellingShingle |
Concreto aditivado com pseudoboemita e poliacrilato de sódio Pacheco, Caroline Valadão nanomateriais pseudoboemita concreto poliacrilato de sódio CNPQ::ENGENHARIAS::ENGENHARIA CIVIL |
title_short |
Concreto aditivado com pseudoboemita e poliacrilato de sódio |
title_full |
Concreto aditivado com pseudoboemita e poliacrilato de sódio |
title_fullStr |
Concreto aditivado com pseudoboemita e poliacrilato de sódio |
title_full_unstemmed |
Concreto aditivado com pseudoboemita e poliacrilato de sódio |
title_sort |
Concreto aditivado com pseudoboemita e poliacrilato de sódio |
author |
Pacheco, Caroline Valadão |
author_facet |
Pacheco, Caroline Valadão |
author_role |
author |
dc.contributor.advisor1.fl_str_mv |
Munhoz Junior, Antônio Hortêncio |
dc.contributor.advisor1Lattes.fl_str_mv |
http://lattes.cnpq.br/8233884614933594 |
dc.contributor.referee1.fl_str_mv |
Miranda, Leila Figueiredo de |
dc.contributor.referee1Lattes.fl_str_mv |
http://lattes.cnpq.br/0218222413589119 |
dc.contributor.referee2.fl_str_mv |
Valenzuela Diaz, Francisco Rolando |
dc.contributor.referee2Lattes.fl_str_mv |
http://lattes.cnpq.br/3539158603053300 |
dc.contributor.referee3.fl_str_mv |
Antunes, Maria Lúcia Pereira |
dc.contributor.referee3Lattes.fl_str_mv |
http://lattes.cnpq.br/9040916399114048 |
dc.contributor.referee4.fl_str_mv |
Setz, Luiz Fernando Grespan |
dc.contributor.referee4Lattes.fl_str_mv |
http://lattes.cnpq.br/0573757321543624 |
dc.contributor.authorLattes.fl_str_mv |
http://lattes.cnpq.br/7023353178397954 |
dc.contributor.author.fl_str_mv |
Pacheco, Caroline Valadão |
contributor_str_mv |
Munhoz Junior, Antônio Hortêncio Miranda, Leila Figueiredo de Valenzuela Diaz, Francisco Rolando Antunes, Maria Lúcia Pereira Setz, Luiz Fernando Grespan |
dc.subject.por.fl_str_mv |
nanomateriais pseudoboemita concreto poliacrilato de sódio |
topic |
nanomateriais pseudoboemita concreto poliacrilato de sódio CNPQ::ENGENHARIAS::ENGENHARIA CIVIL |
dc.subject.cnpq.fl_str_mv |
CNPQ::ENGENHARIAS::ENGENHARIA CIVIL |
description |
Pseudoboemite is a hydrated aluminum oxyhydroxide obtained from inorganic precursors by the sol-gel process and is used as a precursor to alumina as a reinforcement in obtaining nanocomposites. In this work, pseudoboemite with the addition of sodium polyacrylate was used in order to promote an increase in the spacing of the particles of pseudoboemite, which agglomerate in the material. The material obtained was added to the concrete in order to improve its workability and strength. The new concrete obtained was characterized by means of rheological, mechanical and microstructural tests. The results showed that the addition of pseudoboemite with sodium polyacrylate significantly increased the compressive strength and improved the workability of the concrete. In order to evaluate these properties, tests were made on cone trunk abatement, compression resistance test, ultrasound and characterization of the nanomaterial. The compressive strength data showed a tendency to increase the compressive strength with the addition of pseudoboemite and sodium polyacrylate. |
publishDate |
2020 |
dc.date.issued.fl_str_mv |
2020-04-16 |
dc.date.accessioned.fl_str_mv |
2021-12-15T19:31:43Z |
dc.date.available.fl_str_mv |
2021-12-15T19:31:43Z |
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.citation.fl_str_mv |
PACHECO, Caroline Valadão. Concreto aditivado com pseudoboemita e poliacrilato de sódio. 2020. 95 f. Tese (Engenharia de Materiais e Nanotecnologia) - Universidade Presbiteriana Mackenzie, São Paulo, 2020. |
dc.identifier.uri.fl_str_mv |
https://dspace.mackenzie.br/handle/10899/28439 |
identifier_str_mv |
PACHECO, Caroline Valadão. Concreto aditivado com pseudoboemita e poliacrilato de sódio. 2020. 95 f. Tese (Engenharia de Materiais e Nanotecnologia) - Universidade Presbiteriana Mackenzie, São Paulo, 2020. |
url |
https://dspace.mackenzie.br/handle/10899/28439 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.rights.driver.fl_str_mv |
http://creativecommons.org/licenses/by-nc-nd/4.0/ info:eu-repo/semantics/openAccess |
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http://creativecommons.org/licenses/by-nc-nd/4.0/ |
eu_rights_str_mv |
openAccess |
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application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Presbiteriana Mackenzie |
dc.publisher.program.fl_str_mv |
Engenharia de Materiais e Nanotecnologia |
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UPM |
dc.publisher.country.fl_str_mv |
Brasil |
dc.publisher.department.fl_str_mv |
Escola de Engenharia Mackenzie (EE) |
publisher.none.fl_str_mv |
Universidade Presbiteriana Mackenzie |
dc.source.none.fl_str_mv |
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MACKENZIE |
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Biblioteca Digital de Teses e Dissertações do Mackenzie |
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Biblioteca Digital de Teses e Dissertações do Mackenzie |
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