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Flexural behaviour of amorphous micro-steel fibre-reinforced cement composites

机译：非晶态微钢纤维增强水泥复合材料的抗弯性能

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摘要

In this study, the flexural behaviour of thin micro-steel fibre of low specific gravity was evaluated. Micro-steel fibre has higher strength, toughness, and elasticity than conventional steel fibre. Flexural tests were carried out using 0.2%, 0.3%, 0.4%, 0.5%, 0.7%, and 1% fibre volume fractions (V_f). The flexural strength and flexural toughness of micro-steel fibre-reinforced cement composites were superior to those of steel fibre-reinforced cement composites. Flexural strength increased by 20%, 37%, 33%, 41%, 47%, and 48% in micro-steel fibre-reinforced cement composites with 0.2%, 0.3%, 0.4%, 0.5%, 0.7%, and 1% V_f, respectively, compared with steel fibre-reinforced cement composites of the same V_f. The 0.2% and 0.3% volume fractions did not significantly affect flexural toughness. However, flexural toughness increased by 39%, 56%, 44%, and 36% in amorphous steel fibre-reinforced cement composites with 0.4%, 0.5%, 0.7%, and 1.0% V_f, respectively, compared with steel fibre-reinforced cement composites of the same V_f.
机译：在这项研究中，评估了低比重的细微钢纤维的弯曲行为。微钢纤维比常规钢纤维具有更高的强度，韧性和弹性。使用0.2％，0.3％，0.4％，0.5％，0.7％和1％的纤维体积分数（V_f）进行挠曲测试。微钢纤维增强水泥复合材料的抗弯强度和挠曲韧性优于钢纤维增强水泥复合材料。在含0.2％，0.3％，0.4％，0.5％，0.7％和1％的微钢纤维水泥复合材料中，抗弯强度分别提高了20％，37％，33％，41％，47％和48％ V_f分别与相同V_f的钢纤维增强水泥复合材料相比。 0.2％和0.3％的体积分数不会显着影响弯曲韧性。但是，与钢纤维增强水泥相比，在V_f为0.4％，0.5％，0.7％和1.0％的非晶态钢纤维增强水泥复合材料中，弯曲韧性分别提高了39％，56％，44％和36％。 V_f相同的合成。

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  • 来源
    《Composite Structures》 |2012年第4期|p.1443-1449|共7页
  • 作者

    Jong-Pil Won; Byung-Tak Hong; Tei-Joon Choi; Su-Jin Lee; Joo-Won Kang;

  • 作者单位

    Department of Civil & Environmental System Engineering. Konkuk University, Seoul 143-701, Republic of Korea;

    Department of Civil & Environmental System Engineering. Konkuk University, Seoul 143-701, Republic of Korea;

    Department of Civil & Environmental System Engineering. Konkuk University, Seoul 143-701, Republic of Korea;

    Department of Civil & Environmental System Engineering. Konkuk University, Seoul 143-701, Republic of Korea;

    School of Architecture, Yeungnam University, Gyeongsan 712-749, Republic of Korea;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    amorphous steel fibre; flexural behaviour; micro-steel fibre;

    机译：无定形钢纤维弯曲行为微钢纤维;

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