Influence of recycled concrete aggregates in properties of new concretes
| Autor(a) principal: | |
|---|---|
| Data de Publicação: | 2021 |
| Outros Autores: | , , , |
| Tipo de documento: | Artigo |
| Idioma: | por |
| Título da fonte: | Research, Society and Development |
| DOI: | 10.33448/rsd-v10i4.14238 |
| Texto Completo: | https://rsdjournal.org/index.php/rsd/article/view/14238 |
Resumo: | This paper presents the results of a laboratory study of the properties of concrete with partial substitution of recycled coarse aggregate concrete and incorporating mineral additions, silica fume and metakaolin, commercially available in the region. The tests were compressive strength and modulus of elasticity in age of 28 days. The results showed that the silica fume addition improves the properties of concrete to the residue. Silica fume filled the voids present in the aggregate, the microstructure densifies of this composite. The regards the addition of metakaolin, although the results were satisfactory, there were no statistical variability when it was compared to concrete without the addition. It is believed that this material would be more efficient at older ages. It can be concluded that the characteristics found by the concrete with partial substitution of 50% recycled coarse aggregate concrete and adding silica techniques have potential for use in structural elements function. |
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Research, Society and Development |
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Influence of recycled concrete aggregates in properties of new concretesInfluencia de los áridos de hormigón reciclado en las propiedades de los nuevos hormigonesInfluência de agregados reciclados de concreto nas propriedades de novos concretosAgregado graúdo reciclado de concretoSílica ativaMetacaulimPropriedades mecânicas.Hormigón de agregado grueso recicladoHumo de síliceMetacaolínPropiedades físicas.Recycled coarse aggregate concreteSilica fumeMetakaolinPhysical properties.This paper presents the results of a laboratory study of the properties of concrete with partial substitution of recycled coarse aggregate concrete and incorporating mineral additions, silica fume and metakaolin, commercially available in the region. The tests were compressive strength and modulus of elasticity in age of 28 days. The results showed that the silica fume addition improves the properties of concrete to the residue. Silica fume filled the voids present in the aggregate, the microstructure densifies of this composite. The regards the addition of metakaolin, although the results were satisfactory, there were no statistical variability when it was compared to concrete without the addition. It is believed that this material would be more efficient at older ages. It can be concluded that the characteristics found by the concrete with partial substitution of 50% recycled coarse aggregate concrete and adding silica techniques have potential for use in structural elements function.Este artículo presenta los resultados de un estudio de laboratorio sobre las propiedades del hormigón con reposición parcial de áridos de hormigón reciclado e incorporación de adiciones minerales, humo de sílice y metacaolín, disponibles comercialmente en la región. Los ensayos realizados fueron de resistencia a la compresión axial, módulo de elasticidad y absorción de agua por capilaridad, todos a la edad de 28 días. Los resultados mostraron que la adición de humo de sílice mejora las propiedades de los hormigones con residuo. La sílice activa llenó los vacíos presentes en el agregado, densificando la microestructura de este compuesto. Con respecto al metacaolín, a pesar de que los resultados fueron satisfactorios, no hubo variabilidad estadística al compararlo con el hormigón sin adición. Se cree que este material sería más eficaz si se evaluara a edades más avanzadas. Se puede concluir por las características encontradas que el hormigón con 50% de reposición parcial de áridos de hormigón reciclado y la adición de sílice presentan viabilidad técnica para la aplicación en elementos con función estructural.Este artigo apresenta os resultados de um estudo de laboratório sobre as propriedades do concreto com substituição parcial de agregado graúdo reciclado de concreto e incorporação de adições minerais, sílica ativa e o metacaulim, comercialmente disponíveis na região. Os ensaios realizados foram resistência à compressão axial, módulo de elasticidade e absorção de água por capilaridade, todos na idade de 28 dias. Os resultados mostraram que a adição de sílica ativa, melhora as propriedades dos concretos com resíduo. A sílica ativa preencheu os vazios presentes no agregado, densificando a microestrutura desse compósito. No que diz respeito ao metacaulim, apesar dos resultados serem satisfatórios, não houve variabilidade estatística quando este foi comparado com o concreto sem adição. Acredita-se que esse material seria mais eficiente se avaliado em idades mais avançadas. Pode-se concluir pelas características encontradas que o concreto com substituição parcial de 50% de agregado graúdo reciclado de concreto e a adição de sílica apresentam viabilidade técnicas para a aplicação em elementos com função estrutural.Research, Society and Development2021-04-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://rsdjournal.org/index.php/rsd/article/view/1423810.33448/rsd-v10i4.14238Research, Society and Development; Vol. 10 No. 4; e34210414238Research, Society and Development; Vol. 10 Núm. 4; e34210414238Research, Society and Development; v. 10 n. 4; e342104142382525-3409reponame:Research, Society and Developmentinstname:Universidade Federal de Itajubá (UNIFEI)instacron:UNIFEIporhttps://rsdjournal.org/index.php/rsd/article/view/14238/12747Copyright (c) 2021 Leandro Martins; Luciana de Nazaré Pinheiro Cordeiro; Isaura Nazaré Lobato Paes; Paulo Sérgio Lima Souza; Arthur Aviz Palma e Silvahttps://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/openAccessMartins, LeandroCordeiro, Luciana de Nazaré PinheiroPaes, Isaura Nazaré LobatoSouza, Paulo Sérgio LimaSilva, Arthur Aviz Palma e 2021-04-25T11:21:26Zoai:ojs.pkp.sfu.ca:article/14238Revistahttps://rsdjournal.org/index.php/rsd/indexPUBhttps://rsdjournal.org/index.php/rsd/oairsd.articles@gmail.com2525-34092525-3409opendoar:2024-01-17T09:35:24.537242Research, Society and Development - Universidade Federal de Itajubá (UNIFEI)false |
| dc.title.none.fl_str_mv |
Influence of recycled concrete aggregates in properties of new concretes Influencia de los áridos de hormigón reciclado en las propiedades de los nuevos hormigones Influência de agregados reciclados de concreto nas propriedades de novos concretos |
| title |
Influence of recycled concrete aggregates in properties of new concretes |
| spellingShingle |
Influence of recycled concrete aggregates in properties of new concretes Influence of recycled concrete aggregates in properties of new concretes Martins, Leandro Agregado graúdo reciclado de concreto Sílica ativa Metacaulim Propriedades mecânicas. Hormigón de agregado grueso reciclado Humo de sílice Metacaolín Propiedades físicas. Recycled coarse aggregate concrete Silica fume Metakaolin Physical properties. Martins, Leandro Agregado graúdo reciclado de concreto Sílica ativa Metacaulim Propriedades mecânicas. Hormigón de agregado grueso reciclado Humo de sílice Metacaolín Propiedades físicas. Recycled coarse aggregate concrete Silica fume Metakaolin Physical properties. |
| title_short |
Influence of recycled concrete aggregates in properties of new concretes |
| title_full |
Influence of recycled concrete aggregates in properties of new concretes |
| title_fullStr |
Influence of recycled concrete aggregates in properties of new concretes Influence of recycled concrete aggregates in properties of new concretes |
| title_full_unstemmed |
Influence of recycled concrete aggregates in properties of new concretes Influence of recycled concrete aggregates in properties of new concretes |
| title_sort |
Influence of recycled concrete aggregates in properties of new concretes |
| author |
Martins, Leandro |
| author_facet |
Martins, Leandro Martins, Leandro Cordeiro, Luciana de Nazaré Pinheiro Paes, Isaura Nazaré Lobato Souza, Paulo Sérgio Lima Silva, Arthur Aviz Palma e Cordeiro, Luciana de Nazaré Pinheiro Paes, Isaura Nazaré Lobato Souza, Paulo Sérgio Lima Silva, Arthur Aviz Palma e |
| author_role |
author |
| author2 |
Cordeiro, Luciana de Nazaré Pinheiro Paes, Isaura Nazaré Lobato Souza, Paulo Sérgio Lima Silva, Arthur Aviz Palma e |
| author2_role |
author author author author |
| dc.contributor.author.fl_str_mv |
Martins, Leandro Cordeiro, Luciana de Nazaré Pinheiro Paes, Isaura Nazaré Lobato Souza, Paulo Sérgio Lima Silva, Arthur Aviz Palma e |
| dc.subject.por.fl_str_mv |
Agregado graúdo reciclado de concreto Sílica ativa Metacaulim Propriedades mecânicas. Hormigón de agregado grueso reciclado Humo de sílice Metacaolín Propiedades físicas. Recycled coarse aggregate concrete Silica fume Metakaolin Physical properties. |
| topic |
Agregado graúdo reciclado de concreto Sílica ativa Metacaulim Propriedades mecânicas. Hormigón de agregado grueso reciclado Humo de sílice Metacaolín Propiedades físicas. Recycled coarse aggregate concrete Silica fume Metakaolin Physical properties. |
| description |
This paper presents the results of a laboratory study of the properties of concrete with partial substitution of recycled coarse aggregate concrete and incorporating mineral additions, silica fume and metakaolin, commercially available in the region. The tests were compressive strength and modulus of elasticity in age of 28 days. The results showed that the silica fume addition improves the properties of concrete to the residue. Silica fume filled the voids present in the aggregate, the microstructure densifies of this composite. The regards the addition of metakaolin, although the results were satisfactory, there were no statistical variability when it was compared to concrete without the addition. It is believed that this material would be more efficient at older ages. It can be concluded that the characteristics found by the concrete with partial substitution of 50% recycled coarse aggregate concrete and adding silica techniques have potential for use in structural elements function. |
| publishDate |
2021 |
| dc.date.none.fl_str_mv |
2021-04-12 |
| dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
| format |
article |
| status_str |
publishedVersion |
| dc.identifier.uri.fl_str_mv |
https://rsdjournal.org/index.php/rsd/article/view/14238 10.33448/rsd-v10i4.14238 |
| url |
https://rsdjournal.org/index.php/rsd/article/view/14238 |
| identifier_str_mv |
10.33448/rsd-v10i4.14238 |
| dc.language.iso.fl_str_mv |
por |
| language |
por |
| dc.relation.none.fl_str_mv |
https://rsdjournal.org/index.php/rsd/article/view/14238/12747 |
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https://creativecommons.org/licenses/by/4.0 info:eu-repo/semantics/openAccess |
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https://creativecommons.org/licenses/by/4.0 |
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openAccess |
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application/pdf |
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Research, Society and Development |
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Research, Society and Development |
| dc.source.none.fl_str_mv |
Research, Society and Development; Vol. 10 No. 4; e34210414238 Research, Society and Development; Vol. 10 Núm. 4; e34210414238 Research, Society and Development; v. 10 n. 4; e34210414238 2525-3409 reponame:Research, Society and Development instname:Universidade Federal de Itajubá (UNIFEI) instacron:UNIFEI |
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Universidade Federal de Itajubá (UNIFEI) |
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UNIFEI |
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UNIFEI |
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Research, Society and Development |
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Research, Society and Development |
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Research, Society and Development - Universidade Federal de Itajubá (UNIFEI) |
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rsd.articles@gmail.com |
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1822178610179473408 |
| dc.identifier.doi.none.fl_str_mv |
10.33448/rsd-v10i4.14238 |