Bending behavior of 3D fabric reinforced cementitious composites

Author(s): E. Amzaleg, A. Peled, S. Janetzko, T. Gries
Paper category: Conference
Book title: 8th RILEM International Symposium on Fiber Reinforced Concrete: challenges and opportunities (BEFIB 2012)
Editor(s): Joaquim A.O. Barros
Print ISBN: 978-2-35158-132-2
e-ISBN: 978-2-35158-133-9
Publisher: RILEM Publications SARL
Pages: 136 - 148
Total Pages: 12
Language: English

Abstract: The goal of this work was to investigate the flexural behavior of 3D fabric cement based matrix composites and to reveal the influences of: fabric orientation relative to the applied forces, content of reinforcement and yarn materials along the Z direction. In order to achieve these goals, a reliability of the test and processing procedures were examined and confirmed. Two test arrangements were tested, horizontal and vertical. It was found that the horizontal arrangement performed better compared to the vertical one. Two different contents of aramid reinforced yarns along the Z direction were examined. Greater yarns content leads to improved toughness, stiffness and tensile strength. These improvements were mainly observed for the vertical arrangement system. Two high performance yarn materials, AR glass and carbon, along the Z direction were examined and compared to a reference sample without reinforced yarns along the Z direction. The AR glass and carbon systems showed a significant improvement in one order of magnitude of the toughness and twofold improvement of the tensile strength compared to the reference system. The trends and results obtained in this work clearly show the high potential and benefit of using 3D fabrics as reinforcement for cement-based composites. Further research is required for better understanding the mechanisms involved.

Online publication: 2013
Publication Type: full_text
Public price (Euros): 0.00