吹き付けた鋼繊維補強モルタルの曲げ強度

DOI Web Site 被引用文献7件 参考文献11件
  • 大久保 誠介
    Department of Geo–systemEngineering, The University of Tokyo, Bunkyo–ku, Tokyo 113
  • 福井 勝則
    Department of Geo–systemEngineering, The University of Tokyo, Bunkyo–ku, Tokyo 113
  • 楊 勤
    Graduate School of Geo–system Engineering, The University of Tokyo
  • 西松 裕一
    Department of Geo–systemEngineering, The University of Tokyo, Bunkyo–ku, Tokyo 113
  • 下村 弥
    The Kozai Club, Kayaba–cho, Nihonbashi, Chuo‐ku, Tokyo 103

書誌事項

タイトル別名
  • Modulus of Rupture (Ultimate Bending Strength) of Sprayed Steel-Fiber Reinforced Mortar.
  • フキツケタ コウ センイ ホキョウ モルタル ノ マゲ キョウド

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抄録

Sprayed steel-fiber reinforced mortar (SFRM) or concrete (SFRC), one of the future promising composite materials, is considered to suit today's rapid excavation by a tunnel boring machine, a boom header or a continuous miner. In this study, four-point bending tests were performed measuring load and deflection in the air-dried condition. The pre-failure characteristics such as Young's modulus did not change so much. However, the residual strength increased dramatically in behalf of the steel-fiber reinforcement. The peak strength at steel-fiber content of 1.5 % became twice as much as that of plain mortar. The experimental results in bending together with the results of uniaxial tension and compression tests were analytically examined and discussed. It was found that the peak strength in bending was strongly correlated with the residual strength in tension. An equation to estimate the peak strength in bending was proposed and the calculated results were compared with the experimental results.

収録刊行物

  • 資源と素材

    資源と素材 114 (2), 87-92, 1998

    一般社団法人 資源・素材学会

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