Avaliação da substituição total de areia natural por RCD em revestimentos de argamassa

Detalhes bibliográficos
Autor(a) principal: Girardi, Aline Crispim Canedo
Data de Publicação: 2016
Tipo de documento: Dissertação
Idioma: por
Título da fonte: Repositório Institucional da UFG
dARK ID: ark:/38995/00130000052s7
Texto Completo: http://repositorio.bc.ufg.br/tede/handle/tede/5924
Resumo: Although the use of CDW in the aggregate production is studied in Brazil for more than two decades, there are still gaps regarding their use in mortars. In this sense, the present study aims to evaluate mortar for rendering masonry produced with full replacement of natural sand by recycled aggregate, seeking to correlate the various properties and characteristics of aggregates and mortars with the performance of rendering with regard to the adhesive strength and absorption/water permeability. For the development of the research three types of aggregates were used (natural sand, mixed recycled ceramic and cement and cementitious recycled) in two particle sizes, passers-by screens 3 mm and 1.18 mm, which were widely characterized. With the data obtained in the characterization of aggregates, different traces were formulated for mortars, keeping fixed the content of total fine plasticizers. The mortars were evaluated on their consistency, bulk density, dimensional instability (shrinkage), water absorption, compressive and flexural strength. The renderings were applied on ceramic blocks, which were selected for initial water absorption rate ranges, avoiding the variability of results due to changes in the suction of the substrate. Two types of preparation of the base were performed, lime solution and roughcast, the latter was used only for the rendering that showed the best performance among those produced with recycled aggregates. As the main results, it was found that using a sieve with an opening of 1.18 mm is effective for reducing the content of fine aggregate, however, mortars and renderings produced with these aggregates showed unsatisfactory performance, falling short of results in materials with through 3 mm sieve. Mortars and rendering produced with recycled aggregate cement did not show compatible performance with the others, at the expense of the initial assumptions, which provided that this aggregate would exceed the aggregate mixed. It was also noticed that the recycled aggregates mixed ceramic and cementitious material, passers the sieve 3 mm, despite the high content of fine and high water absorption, resemble very to the natural aggregate with the same granulometry, when comparing the characteristics of mortars they have produced, mainly for resistance to compression. When assessing the rendering produced by these two aggregates, both are equivalent in the question of adhesive strength and showed no cracking. In general, it can be concluded that it is feasible the production of efficient rendering with complete replacement of natural sand for mixed recycled aggregates since the RCD origin and characteristics are known, Provided that limited the packing factor of grain , which directly influence the properties of mortars and renderings.
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spelling Carasek, Helenahttp://lattes.cnpq.br/3023241186996790Carasek, HelenaBrandstetter, Maria CarolinaSilva, Vanessa Silveirahttp://lattes.cnpq.br/3964264772903680Girardi, Aline Crispim Canedo2016-08-12T14:17:29Z2016-05-31GIRARDI, A. C. C.. Avaliação da substituição total de areia natural por RCD em revestimentos de argamassa. 2016. 130 f. Dissertação (Mestrado em Geotecnia, Estruturas e Construção Civil - Universidade Federal de Goiás, Goiânia, 2016.http://repositorio.bc.ufg.br/tede/handle/tede/5924ark:/38995/00130000052s7Although the use of CDW in the aggregate production is studied in Brazil for more than two decades, there are still gaps regarding their use in mortars. In this sense, the present study aims to evaluate mortar for rendering masonry produced with full replacement of natural sand by recycled aggregate, seeking to correlate the various properties and characteristics of aggregates and mortars with the performance of rendering with regard to the adhesive strength and absorption/water permeability. For the development of the research three types of aggregates were used (natural sand, mixed recycled ceramic and cement and cementitious recycled) in two particle sizes, passers-by screens 3 mm and 1.18 mm, which were widely characterized. With the data obtained in the characterization of aggregates, different traces were formulated for mortars, keeping fixed the content of total fine plasticizers. The mortars were evaluated on their consistency, bulk density, dimensional instability (shrinkage), water absorption, compressive and flexural strength. The renderings were applied on ceramic blocks, which were selected for initial water absorption rate ranges, avoiding the variability of results due to changes in the suction of the substrate. Two types of preparation of the base were performed, lime solution and roughcast, the latter was used only for the rendering that showed the best performance among those produced with recycled aggregates. As the main results, it was found that using a sieve with an opening of 1.18 mm is effective for reducing the content of fine aggregate, however, mortars and renderings produced with these aggregates showed unsatisfactory performance, falling short of results in materials with through 3 mm sieve. Mortars and rendering produced with recycled aggregate cement did not show compatible performance with the others, at the expense of the initial assumptions, which provided that this aggregate would exceed the aggregate mixed. It was also noticed that the recycled aggregates mixed ceramic and cementitious material, passers the sieve 3 mm, despite the high content of fine and high water absorption, resemble very to the natural aggregate with the same granulometry, when comparing the characteristics of mortars they have produced, mainly for resistance to compression. When assessing the rendering produced by these two aggregates, both are equivalent in the question of adhesive strength and showed no cracking. In general, it can be concluded that it is feasible the production of efficient rendering with complete replacement of natural sand for mixed recycled aggregates since the RCD origin and characteristics are known, Provided that limited the packing factor of grain , which directly influence the properties of mortars and renderings.Apesar de a utilização de RCD na produção de agregado miúdo ser estudada no Brasil há mais de duas décadas, ainda não há correlações definidas entre as características dos agregados reciclados e o desempenho dos revestimentos, de forma a identificar as propriedades que deverão ser controladas no momento da escolha dos agregados que será incorporado às argamassas, independente do tipo de resíduo original. Nesse sentido, o presente trabalho visa determinar a viabilidade técnica da substituição total de agregado natural por agregado reciclado no preparo de argamassas de revestimento, buscando correlacionar as diversas propriedades e características dos agregados e das argamassas com o desempenho dos revestimentos, no que tange à resistência de aderência à tração e absorção/permeabilidade de água. Para o desenvolvimento da pesquisa utilizou-se três tipos de agregados (areia natural, reciclado misto de material cerâmico e cimentício e reciclado cimentício), em duas granulometrias, passantes pelas peneiras 3 mm e 1,18 mm, os quais foram amplamente caracterizados. As argamassas produzidas foram avaliadas quanto à consistência, densidade de massa, retração, absorção de água por imersão, resistência à compressão e resistência à tração. Os revestimentos foram aplicados sobre blocos cerâmicos, preparados com solução de cal ou chapisco, sendo este último apenas para o revestimento que apresentou o melhor desempenho dentre os produzidos com agregados reciclados. Como principais resultados, verificou-se que a utilização de peneira com abertura de 1,18 mm é eficiente para a redução do teor de finos dos agregados, entretanto, as argamassas e os revestimentos produzidos não apresentaram desempenho satisfatório, ficando aquém dos resultados obtidos com materiais passantes na peneira 3 mm. As argamassas e revestimentos contendo agregado reciclado cimentício não apresentaram desempenho compatível com as demais, em detrimento das suposições iniciais, que previam que esse agregado seria superior ao agregado misto. Também se percebeu que os agregados reciclados mistos de material cerâmico e cimentício, passantes na peneira 3 mm, apesar do alto teor de finos e da elevada absorção de água, assemelham-se muito ao agregado natural de mesma granulometria, quando comparadas as características das argamassas por estes produzidas, principalmente quanto à resistência à compressão. Quando se avaliam os revestimentos produzidos por esses dois agregados, ambos são equivalentes em questão de resistência de aderência à tração e não apresentaram nenhuma fissuração. Em linhas gerais, pode-se concluir que é viável a produção de revestimentos eficientes com substituição total da areia natural por agregados reciclados, desde que limitado o fator de empacotamento dos grãos, que influência diretamente nas propriedades das argamassas e revestimentos.Submitted by Cássia Santos (cassia.bcufg@gmail.com) on 2016-08-12T10:36:05Z No. of bitstreams: 2 Dissertação - Aline Crispim Canedo Girardi - 2016.pdf: 6052802 bytes, checksum: 19568ea8fd9027193ffed70b254b8bdc (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5)Approved for entry into archive by Luciana Ferreira (lucgeral@gmail.com) on 2016-08-12T14:17:29Z (GMT) No. of bitstreams: 2 Dissertação - Aline Crispim Canedo Girardi - 2016.pdf: 6052802 bytes, checksum: 19568ea8fd9027193ffed70b254b8bdc (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5)Made available in DSpace on 2016-08-12T14:17:29Z (GMT). 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dc.title.por.fl_str_mv Avaliação da substituição total de areia natural por RCD em revestimentos de argamassa
dc.title.alternative.eng.fl_str_mv Evaluation of total replacement of natural sand by RCD in rendering mortar
title Avaliação da substituição total de areia natural por RCD em revestimentos de argamassa
spellingShingle Avaliação da substituição total de areia natural por RCD em revestimentos de argamassa
Girardi, Aline Crispim Canedo
Revestimento
Argamassa
Resíduos de construção e demolição
Resistência de aderência
Permeabilidade à água
Rendering
Mortar
Construction and demolition waste
Adhesive strength
Water permeability
CONSTRUCAO CIVIL::MATERIAIS E COMPONENTES DE CONSTRUCAO
title_short Avaliação da substituição total de areia natural por RCD em revestimentos de argamassa
title_full Avaliação da substituição total de areia natural por RCD em revestimentos de argamassa
title_fullStr Avaliação da substituição total de areia natural por RCD em revestimentos de argamassa
title_full_unstemmed Avaliação da substituição total de areia natural por RCD em revestimentos de argamassa
title_sort Avaliação da substituição total de areia natural por RCD em revestimentos de argamassa
author Girardi, Aline Crispim Canedo
author_facet Girardi, Aline Crispim Canedo
author_role author
dc.contributor.advisor1.fl_str_mv Carasek, Helena
dc.contributor.advisor1Lattes.fl_str_mv http://lattes.cnpq.br/3023241186996790
dc.contributor.referee1.fl_str_mv Carasek, Helena
dc.contributor.referee2.fl_str_mv Brandstetter, Maria Carolina
dc.contributor.referee3.fl_str_mv Silva, Vanessa Silveira
dc.contributor.authorLattes.fl_str_mv http://lattes.cnpq.br/3964264772903680
dc.contributor.author.fl_str_mv Girardi, Aline Crispim Canedo
contributor_str_mv Carasek, Helena
Carasek, Helena
Brandstetter, Maria Carolina
Silva, Vanessa Silveira
dc.subject.por.fl_str_mv Revestimento
Argamassa
Resíduos de construção e demolição
Resistência de aderência
Permeabilidade à água
topic Revestimento
Argamassa
Resíduos de construção e demolição
Resistência de aderência
Permeabilidade à água
Rendering
Mortar
Construction and demolition waste
Adhesive strength
Water permeability
CONSTRUCAO CIVIL::MATERIAIS E COMPONENTES DE CONSTRUCAO
dc.subject.eng.fl_str_mv Rendering
Mortar
Construction and demolition waste
Adhesive strength
Water permeability
dc.subject.cnpq.fl_str_mv CONSTRUCAO CIVIL::MATERIAIS E COMPONENTES DE CONSTRUCAO
description Although the use of CDW in the aggregate production is studied in Brazil for more than two decades, there are still gaps regarding their use in mortars. In this sense, the present study aims to evaluate mortar for rendering masonry produced with full replacement of natural sand by recycled aggregate, seeking to correlate the various properties and characteristics of aggregates and mortars with the performance of rendering with regard to the adhesive strength and absorption/water permeability. For the development of the research three types of aggregates were used (natural sand, mixed recycled ceramic and cement and cementitious recycled) in two particle sizes, passers-by screens 3 mm and 1.18 mm, which were widely characterized. With the data obtained in the characterization of aggregates, different traces were formulated for mortars, keeping fixed the content of total fine plasticizers. The mortars were evaluated on their consistency, bulk density, dimensional instability (shrinkage), water absorption, compressive and flexural strength. The renderings were applied on ceramic blocks, which were selected for initial water absorption rate ranges, avoiding the variability of results due to changes in the suction of the substrate. Two types of preparation of the base were performed, lime solution and roughcast, the latter was used only for the rendering that showed the best performance among those produced with recycled aggregates. As the main results, it was found that using a sieve with an opening of 1.18 mm is effective for reducing the content of fine aggregate, however, mortars and renderings produced with these aggregates showed unsatisfactory performance, falling short of results in materials with through 3 mm sieve. Mortars and rendering produced with recycled aggregate cement did not show compatible performance with the others, at the expense of the initial assumptions, which provided that this aggregate would exceed the aggregate mixed. It was also noticed that the recycled aggregates mixed ceramic and cementitious material, passers the sieve 3 mm, despite the high content of fine and high water absorption, resemble very to the natural aggregate with the same granulometry, when comparing the characteristics of mortars they have produced, mainly for resistance to compression. When assessing the rendering produced by these two aggregates, both are equivalent in the question of adhesive strength and showed no cracking. In general, it can be concluded that it is feasible the production of efficient rendering with complete replacement of natural sand for mixed recycled aggregates since the RCD origin and characteristics are known, Provided that limited the packing factor of grain , which directly influence the properties of mortars and renderings.
publishDate 2016
dc.date.accessioned.fl_str_mv 2016-08-12T14:17:29Z
dc.date.issued.fl_str_mv 2016-05-31
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/masterThesis
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dc.identifier.citation.fl_str_mv GIRARDI, A. C. C.. Avaliação da substituição total de areia natural por RCD em revestimentos de argamassa. 2016. 130 f. Dissertação (Mestrado em Geotecnia, Estruturas e Construção Civil - Universidade Federal de Goiás, Goiânia, 2016.
dc.identifier.uri.fl_str_mv http://repositorio.bc.ufg.br/tede/handle/tede/5924
dc.identifier.dark.fl_str_mv ark:/38995/00130000052s7
identifier_str_mv GIRARDI, A. C. C.. Avaliação da substituição total de areia natural por RCD em revestimentos de argamassa. 2016. 130 f. Dissertação (Mestrado em Geotecnia, Estruturas e Construção Civil - Universidade Federal de Goiás, Goiânia, 2016.
ark:/38995/00130000052s7
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dc.publisher.none.fl_str_mv Universidade Federal de Goiás
dc.publisher.program.fl_str_mv Programa de Pós-graduação em Geotecnia, Estruturas e Construção Civil (EEC)
dc.publisher.initials.fl_str_mv UFG
dc.publisher.country.fl_str_mv Brasil
dc.publisher.department.fl_str_mv Escola de Engenharia Civil - EEC (RG)
publisher.none.fl_str_mv Universidade Federal de Goiás
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repository.name.fl_str_mv Repositório Institucional da UFG - Universidade Federal de Goiás (UFG)
repository.mail.fl_str_mv tasesdissertacoes.bc@ufg.br
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