The use of the granite cut residue (GCR) as an admixture in the mechanical properties of concrete

The use of the granite cut residue (GCR) as an admixture in the mechanical properties of concrete

The use of waste and industrial by-products in the building sites seems to be an excellent alternative to decrease the environmental impact of the industry as well as to contribute to sustainable development. The granite cut residue (GCR) is a result of the process of sawdusting rock blocks into pla...

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Auteurs principaux: Gonçalves, Jardel Pereira, Moura, Washington Almeida, Dal Molin, Denise Carpena Coitinho
Format: Online
Langue:por
Publié: ANTAC - Associação Nacional de Tecnologia do Ambiente Construído 2008
Accès en ligne:https://seer.ufrgs.br/ambienteconstruido/article/view/3411
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spelling ojs-article-34112020-06-16T14:37:16Z The use of the granite cut residue (GCR) as an admixture in the mechanical properties of concrete Avaliação da influência da adição do resíduo de corte de granito (RCG), como adição, em propriedades mecânicas do concreto Gonçalves, Jardel Pereira Moura, Washington Almeida Dal Molin, Denise Carpena Coitinho Resíduo de corte de granito; Adições minerais; Concreto The use of waste and industrial by-products in the building sites seems to be an excellent alternative to decrease the environmental impact of the industry as well as to contribute to sustainable development. The granite cut residue (GCR) is a result of the process of sawdusting rock blocks into plates using an equipment called loom. In Brazil, the estimated amount of residue produced annually is 165.000 tons. This article described a study in which GCR physical and chemical characterisation was carried out. Tests to evaluate the potential oxidation of existing Fe in the GCR were also performed. The results of the use of the GCR as an admixture in concrete in fractions of 10% and 20% of the cement mass are presented. The compressive strength, flexural and split tensile strength of concrete were evaluated. The analysis of the results led to the conclusions that the GCR can be classified as class II residue (noninert), that its use as an admixture in concrete production is technically feasible, and also that the best performance is achieved with an admixture ratio of 10%. A utilização de resíduos e subprodutos industriais na Construção Civil apresenta-se como uma excelente alternativa para diminuição do impacto ambiental e maior contribuição para o desenvolvimento sustentável. O resíduo de corte de granito (RCG) é gerado no processo de serragem de blocos de rochas em placas, num equipamento denominado tear. No Brasil, a quantidade estimada de geração deste resíduo é de 165.000 toneladas por ano. Foi realizada a caracterização física, química e de risco ambiental do (RCG), bem como a avaliação do potencial de oxidação do Fe contido. Neste trabalho são apresentados resultados do aproveitamento do RCG como adição em concretos, em frações de 10% e 20% em relação à massa de cimento. Para os concretos produzidos, foram avaliadas resistência à compressão axial, a resistência à tração por compressão diametral e a resistência à tração na flexão. A análise dos resultados permite concluir que o RCG é classificado como resíduo classe II – não inerte, que sua utilização como adição em concretos é viável tecnicamente, e que 10% de adição é o teor que apresenta melhor desempenho. ANTAC - Associação Nacional de Tecnologia do Ambiente Construído 2008-04-14 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://seer.ufrgs.br/ambienteconstruido/article/view/3411 Ambiente Construído; v. 2, n. 1 (2002); 53-68 Ambiente Construído; v. 2, n. 1 (2002); 53-68 Ambiente Construído; v. 2, n. 1 (2002); 53-68 1678-8621 1415-8876 por https://seer.ufrgs.br/ambienteconstruido/article/view/3411/1824 Direitos autorais 2016 Ambiente Construído https://creativecommons.org/licenses/by/4.0
institution Universidade Federal do Rio Grande do Sul
collection OJS
language por
format Online
author Gonçalves, Jardel Pereira
Moura, Washington Almeida
Dal Molin, Denise Carpena Coitinho
spellingShingle Gonçalves, Jardel Pereira
Moura, Washington Almeida
Dal Molin, Denise Carpena Coitinho
The use of the granite cut residue (GCR) as an admixture in the mechanical properties of concrete
author_facet Gonçalves, Jardel Pereira
Moura, Washington Almeida
Dal Molin, Denise Carpena Coitinho
author_sort Gonçalves, Jardel Pereira
title The use of the granite cut residue (GCR) as an admixture in the mechanical properties of concrete
title_short The use of the granite cut residue (GCR) as an admixture in the mechanical properties of concrete
title_full The use of the granite cut residue (GCR) as an admixture in the mechanical properties of concrete
title_fullStr The use of the granite cut residue (GCR) as an admixture in the mechanical properties of concrete
title_full_unstemmed The use of the granite cut residue (GCR) as an admixture in the mechanical properties of concrete
title_sort use of the granite cut residue (gcr) as an admixture in the mechanical properties of concrete
description The use of waste and industrial by-products in the building sites seems to be an excellent alternative to decrease the environmental impact of the industry as well as to contribute to sustainable development. The granite cut residue (GCR) is a result of the process of sawdusting rock blocks into plates using an equipment called loom. In Brazil, the estimated amount of residue produced annually is 165.000 tons. This article described a study in which GCR physical and chemical characterisation was carried out. Tests to evaluate the potential oxidation of existing Fe in the GCR were also performed. The results of the use of the GCR as an admixture in concrete in fractions of 10% and 20% of the cement mass are presented. The compressive strength, flexural and split tensile strength of concrete were evaluated. The analysis of the results led to the conclusions that the GCR can be classified as class II residue (noninert), that its use as an admixture in concrete production is technically feasible, and also that the best performance is achieved with an admixture ratio of 10%.
publisher ANTAC - Associação Nacional de Tecnologia do Ambiente Construído
publishDate 2008
url https://seer.ufrgs.br/ambienteconstruido/article/view/3411
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