Estudo do comportamento mecânico do concreto com borracha de pneu
Alternative titleOn the mechanical behavior of concrete with rubber tires
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This study discusses the mechanical properties of concrete, elaborated from the partial replacement of fine aggregate by crushed rubber. It was made experimental tests in specimens submitted to axial compression, Young’s modulus (stiffness), three-point bending flexural and fatigue. The measurements were performed on three mixtures: 1) concrete without rubber (denominated as reference concrete), 2) concrete with rubber and the consumption of cement equal of reference and 3) concrete with rubber and the addition of cement on the mixture until it obtains the same strength of the reference concrete. The results have indicated that adding rubber in concrete decreases the strength, which could reduce the application of this new material. The rubber also decreased the elastic modulus; this could improve the behavior of materials in situations involving im-pact actions, dynamics loads and fatigue. Furthermore, this new composite contributes on rubber tire recycling processes.
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Pinho, Sheila Zambello de ; Spazziani, Maria de Lourdes ; Mendonça, Sueli Guadelupe de Lima ; Rubo, Elisabete Aparecida Andrello ; Villarreal, Dalva Maria de Oliveira ; Duarte, Camila ; Okamoto, Mary Yoko ; Souza, Thais R. ; Garms, Gilza Maria Zauhy ; Marin, Fátima Aparecida Dias Gomes et al. (Coleção PROGRAD (UNESP), 2012) [Livro]