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DENG Zong-cai, ZHANG Peng-fei, XUE Hui-qing, LI Peng-yuan, SHE Xiang-jun. Fiexural Toughness of Cellulose and Hybrid Fiber Reinforced Concrete Beams[J]. Journal of Beijing University of Technology, 2008, 34(8): 852-855,877. DOI: 10.3969/j.issn.0254-0037.2008.08.012
Citation: DENG Zong-cai, ZHANG Peng-fei, XUE Hui-qing, LI Peng-yuan, SHE Xiang-jun. Fiexural Toughness of Cellulose and Hybrid Fiber Reinforced Concrete Beams[J]. Journal of Beijing University of Technology, 2008, 34(8): 852-855,877. DOI: 10.3969/j.issn.0254-0037.2008.08.012
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Fiexural Toughness of Cellulose and Hybrid Fiber Reinforced Concrete Beams

  • College of Architecture and Civil Engineering, Beijing University of Technology, Beijing 100022, China

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  • Received Date: May 22, 2007
  • Available Online: December 14, 2022
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    • Abstract
  • The cellulose fiber(ultra-fiber 500) is a new type natural cellulose fiber.In order to study the flexural toughness of cellulose fiber reinforced concrete,the flexural toughness experiments of concrete with synthetic,steel fibers,and hybrid fiber are made at the same time,and the load-deflection curve of all beams are obtained.Based on the ASTM method,the flexural toughness of concrete with cellulose,synthetic,steel fibers and hybrid fibers are all analyzed.The experimental results indicate that the cellulose fiber can improve the flexural toughness and the deformation ability of concrete beams.The flexural toughness index I5 and I10 of concrete with cellulose fiber are 3.0 and 5.8 times higher than that of the plain concrete respectively.For the same ratio of volume of fibers,the flexural toughness index of cellulose fiber reinforced concrete is higher than that of concrete with PP fiber.Cellulose and steel hybrid fibers can improve the toughness and deformation ability of concrete remarkably,and the failure mode changes from brittle to ductile fracture.
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    • References (9)
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