Structural behavior evaluation of precast slabs prototypes made with tire rubber residue concrete

Structural behavior evaluation of precast slabs prototypes made with tire rubber residue concrete

A significant part of concrete produced in Brazil is used to make columns, beams and slabs in building structures. Considering that the inclusion of residues in the concrete can produce a reduction of the structural element strength, and, considering that the roof slab usually does not demand hig...

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Asıl Yazarlar: Trigo, Ana Paula Moreno, Akasaki, Jorge Luís, Melges, José Luiz Pinheiro, Camacho, Jefferson Sidney
Materyal Türü: Online
Dil:por
Baskı/Yayın Bilgisi: ANTAC - Associação Nacional de Tecnologia do Ambiente Construído 2008
Online Erişim:https://seer.ufrgs.br/ambienteconstruido/article/view/4115
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id ojs-article-4115
record_format ojs
institution Universidade Federal do Rio Grande do Sul
collection OJS
language por
format Online
author Trigo, Ana Paula Moreno
Akasaki, Jorge Luís
Melges, José Luiz Pinheiro
Camacho, Jefferson Sidney
spellingShingle Trigo, Ana Paula Moreno
Akasaki, Jorge Luís
Melges, José Luiz Pinheiro
Camacho, Jefferson Sidney
Structural behavior evaluation of precast slabs prototypes made with tire rubber residue concrete
author_facet Trigo, Ana Paula Moreno
Akasaki, Jorge Luís
Melges, José Luiz Pinheiro
Camacho, Jefferson Sidney
author_sort Trigo, Ana Paula Moreno
title Structural behavior evaluation of precast slabs prototypes made with tire rubber residue concrete
title_short Structural behavior evaluation of precast slabs prototypes made with tire rubber residue concrete
title_full Structural behavior evaluation of precast slabs prototypes made with tire rubber residue concrete
title_fullStr Structural behavior evaluation of precast slabs prototypes made with tire rubber residue concrete
title_full_unstemmed Structural behavior evaluation of precast slabs prototypes made with tire rubber residue concrete
title_sort structural behavior evaluation of precast slabs prototypes made with tire rubber residue concrete
description A significant part of concrete produced in Brazil is used to make columns, beams and slabs in building structures. Considering that the inclusion of residues in the concrete can produce a reduction of the structural element strength, and, considering that the roof slab usually does not demand higher actions than the floor slab, it is possible to partially replace the concrete aggregate for economically and ecologically materials. The aim of this work is to present a recycling alternative for tire rubber from retreading process, using it as part of the concrete aggregate in roof slabs. Two unidirectional slab prototypes with lattice joist were tested to the flexure. One of them had some tire rubber residue and the other had not. Vertical displacements and concrete and reinforcement strains were measured with comparing clocks and electric strain gages, respectively. Based on these results and on the kind of the slab collapse, a structural analysis was made. It was observed that the addition of the rubber residue does not make impracticable its technical use and presents advantages for the environmental aspect, though it is structurally less efficient and leads to a higher cement consumption.
publisher ANTAC - Associação Nacional de Tecnologia do Ambiente Construído
publishDate 2008
url https://seer.ufrgs.br/ambienteconstruido/article/view/4115
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spelling ojs-article-41152009-03-07T00:35:54Z Structural behavior evaluation of precast slabs prototypes made with tire rubber residue concrete Avaliação do comportamento estrutural de protótipos de lajes pré-moldadas com concreto com resíduo de borracha de pneu Trigo, Ana Paula Moreno Akasaki, Jorge Luís Melges, José Luiz Pinheiro Camacho, Jefferson Sidney Reinforced concrete; Precast slab witch lattice joist; Tire rubber; Tests Concreto Armado; Laje Pré-moldada Treliçada; Resíduo de Pneu; Ensaios; Concreto Ecológico A significant part of concrete produced in Brazil is used to make columns, beams and slabs in building structures. Considering that the inclusion of residues in the concrete can produce a reduction of the structural element strength, and, considering that the roof slab usually does not demand higher actions than the floor slab, it is possible to partially replace the concrete aggregate for economically and ecologically materials. The aim of this work is to present a recycling alternative for tire rubber from retreading process, using it as part of the concrete aggregate in roof slabs. Two unidirectional slab prototypes with lattice joist were tested to the flexure. One of them had some tire rubber residue and the other had not. Vertical displacements and concrete and reinforcement strains were measured with comparing clocks and electric strain gages, respectively. Based on these results and on the kind of the slab collapse, a structural analysis was made. It was observed that the addition of the rubber residue does not make impracticable its technical use and presents advantages for the environmental aspect, though it is structurally less efficient and leads to a higher cement consumption.     Ana Paula Moreno Trigo Escola de Engenharia de Ilha Solteira Universidade Estadual Paulista Alameda Bahia, 550 Ilha Solteira- SP – Brasil  CEP 15385-000 Tel.: (18) 3743-1213 E-mail: amorenotrigo@yahoo.com.br     Jorge Luís Akasaki Escola de Engenharia de Ilha Solteira Universidade Estadual Paulista Tel.: (18)  3743-1213 E-mail: akasaki@dec.feis.unesp.br     José Luis Pinheiro Melges Escola de Engenharia de Ilha Solteira Universidade Estadual Paulista, Tel.: (18) 3743-1263 E-mail: jlmelges@dec.feis.unesp.br     Jefferson Sidney Camacho Escola de Engenharia de Ilha Solteira Universidade Estadual Paulista, Tel.: (18)  3743-1212 E-mail: jsc@dec.feis.unesp.br     Recebido em 15/05/08 Aceito em 18/12/08   No Brasil, uma significativa parte do volume de concreto produzido é usada em pilares, vigas e lajes das edificações. Desse modo, pensa-se na possibilidade de substituir parcialmente o agregado do concreto por materiais que sejam econômica e ecologicamente viáveis. Este trabalho apresenta um estudo para o reaproveitamento do resíduo proveniente da recauchutagem de pneu, já que este se mostra promissor por ser gerado em abundância. A proposta é utilizá-lo como parte do agregado de concreto para lajes de forro, uma vez que essas lajes não demandam ações elevadas, quando comparadas às lajes de piso. Sendo assim, foram ensaiados, à flexão, dois protótipos de lajes pré-moldadas treliçadas unidirecionais, sendo uma delas constituída parcialmente por resíduo de borracha de pneu, e o outro não. Através dos deslocamentos verticais, das deformações no concreto e na armadura, e dos modos de ruína observados nos ensaios, foi possível avaliar o comportamento dessas lajes e verificar que a adição do resíduo de borracha de pneu não inviabiliza tecnicamente o seu uso e apresenta vantagens quanto ao aspecto ambiental, embora seja menos eficiente do ponto de vista estrutural e conduza a um maior consumo de cimento. ANTAC - Associação Nacional de Tecnologia do Ambiente Construído 2008-12-18 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://seer.ufrgs.br/ambienteconstruido/article/view/4115 Ambiente Construído; v. 8, n. 4 (2008); 37-50 Ambiente Construído; v. 8, n. 4 (2008); 37-50 Ambiente Construído; v. 8, n. 4 (2008); 37-50 1678-8621 1415-8876 por https://seer.ufrgs.br/ambienteconstruido/article/view/4115/4702 Direitos autorais 2016 Ambiente Construído https://creativecommons.org/licenses/by/4.0

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