AVALIAÇÃO DO ENSAIO DE DUPLO FENDILHAMENTO PARA CARACTERIZAÇÃO À TRAÇÃO DE UM CONCRETO DE ALTA RESISTÊNCIA REFORÇADO COM FIBRAS DE AÇO

Authors

  • Erlucivânia Bueno Silva Universidade Federal de Goiás
  • Kleber Silva Peixoto Universidade Federal De Goiás
  • Daniel de Lima Araújo Universidade Federal de Goiás

Abstract

The double-edge wedge splitting (DEWS) test, or double splitting test, is a typical indirect tension test. In this test, a plane of the specimen is subjected to an approximately constant tensile stress field, differing from the stress field used in flexural tests to assess the tensile strength of fibrous concrete prism specimens. This study aimed to determine an adequate specimen geometry to assess the post-peak response of ultra-high-performance fiber-reinforced concrete (UHPFRC) in DEWS test using an electromechanical testing machine. After identification of the best geometry, the influence of two types of steel fibers on the tensile behavior of UHPFRC was analyzed. It was concluded that the DEWS test is suitable for assessing the tensile characteristics of UHPFRC, provided that the specimen geometry is properly defined to ensure that failure occurs in the crack plane. Moreover, the results revealed a large influence of steel fiber diameter on the post-peak behavior of UHPFRC.

Author Biographies

Erlucivânia Bueno Silva, Universidade Federal de Goiás

Possui graduação em Engenharia Civil pela Pontifícia Universidade Católica de Goiás (2013) e mestrado em Mestrado Estruturas e Materiais pela Universidade Federal de Goiás (2016). Doutorando em Estruturas e Materiais pela Universidade Federal de Goiá. Atualmente é professora da Faculdade Unida de Campinas. Tem experiência na área de Engenharia Civil, com ênfase em Estruturas.

Daniel de Lima Araújo, Universidade Federal de Goiás

Graduação em Engenharia Civil pela Universidade Federal de Goiás (1992), mestrado em Engenharia Civil (Engenharia de Estruturas) pela Universidade de São Paulo (1997) e doutorado em Engenharia Civil (Engenharia de Estruturas) também pela Universidade de São Paulo (2002). Atualmente é professor titular da Universidade Federal de Goiás, atuando junto ao Programa de Pós-Graduação (mestrado e doutorado) em Geotecnia, Estruturas e Construção Civil (PPGGECON) da Escola de Engenharia Civil e Ambiental da UFG.

 

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Published

2024-12-31

Issue

v. 19, n. 3 (2024)

Section

Articles

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