Strength of Materials

, Volume 50, Issue 1, pp 166–175 | Cite as

Flexural Fracture Toughness and First-Crack Strength Tests of Steel Fiber-Silica Fume Concrete and Its Engineering Applications

  • J. P. Zhang
  • L. M. Liu
  • Z. D. Zhu
  • F. T. Zhang
  • J. Z. Cao
Article
  • 6 Downloads

The effect of a steel fiber and silica fume on the first-crack strength and the flexural toughness of concrete is evaluated. The ten sets of specimens with a steel fiber content of 0, 40, 50, and 60 g/m3 and steel fiber types of wave shear and straight shear types with and without a silica fume content of a 10% replacement of the cement weight were tested. The results show that the combined effect of silica fume and steel fiber improve the first-crack load and deflection of specimens to a certain degree and increase the flexural fracture toughness of specimens greatly. In the strengthening effect of steel fiber silica fume concrete, the steel fiber is of first importance, while silica fume is an auxiliary component. The wet steel fiber-silica fume shotcrete support for controlling the surrounding rock mass can provide the whole supporting effect of the anchor mesh shotcrete.

Keywords

concrete steel fiber silica fume first-crack load and deflection flexural toughness 

Notes

Acknowledgments

This research was fully funded by Student Science and Technology Innovation Fund Foundation of College of Mining and Safety Engineering in Shandong University of Science and Technology (KYKC17009).

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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2018

Authors and Affiliations

  • J. P. Zhang
    • 1
  • L. M. Liu
    • 1
  • Z. D. Zhu
    • 2
  • F. T. Zhang
    • 3
  • J. Z. Cao
    • 4
  1. 1.College of Mining and Safety EngineeringShandong University of Science and TechnologyQingdaoChina
  2. 2.Geotechnical Research Institute of Hohai University (GeoHohai)NanjingChina
  3. 3.Shandong Ark New Materials Co. Ltd.Tai’anChina
  4. 4.Taian Ark Mining Ark Technology Co. Ltd.Tai’anChina

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