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Volume 27 Issue 1
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Chinese Journal of High Pressure Physics  > 2013  >  27(1): 69-75.
SU Hao-Yang, XU Jin-Yu, GAO Zhi-Gang, LI Zhi-Wu, YANG Kun. Strengthening and Toughening Effect of Ceramic Fiber on Plain Concrete[J]. Chinese Journal of High Pressure Physics, 2013, 27(1): 69-75. doi: 10.11858/gywlxb.2013.01.010
Citation: SU Hao-Yang, XU Jin-Yu, GAO Zhi-Gang, LI Zhi-Wu, YANG Kun. Strengthening and Toughening Effect of Ceramic Fiber on Plain Concrete[J]. Chinese Journal of High Pressure Physics, 2013, 27(1): 69-75. doi: 10.11858/gywlxb.2013.01.010
shu

Strengthening and Toughening Effect of Ceramic Fiber on Plain Concrete

doi: 10.11858/gywlxb.2013.01.010
  • 1.

    Department of Airfield and Building Engineering, Air Force Engineering University, Xi'an 710038, China;

  • 2.

    College of Mechanics and Civil Architecture, Northwest Polytechnic University, Xi'an 710072, China

  • Received Date: 12 Dec 2011
  • Rev Recd Date: 12 Mar 2012
  • Issue Publish Date: 15 Feb 2013
    Abstract
  • A hydraulic pressure testing machine and a 100 mm diameter split Hopkinson pressure bar (SHPB) apparatus are used to investigate the quasi-static and dynamic mechanical properties of ceramic fiber reinforced concrete (CRFRC), which are compared to those of carbon fiber reinforced concrete (CFRC) at the same volume fractions of 0.1%, 0.2% and 0.3%. The strengthening mechanism of ceramic fiber is analyzed. The experimental results show that the ceramic fiber improves the quasi-static mechanical property of plain concrete effectively. When the volume fraction is 0.3%, the compressive strength, splitting tensile strength and flexural strength enhance by 15.0%, 8.5% and 12.7% respectively. The dynamic compressive strength and specific energy absorption of CRFRC are strain rate-dependent under impact load, and the effect can be expressed by linear approximations. The strength and toughness of CRFRC come to the best at the volume fraction of 0.2%. The strength and energy absorption properties of CRFRC are superior to those of CFRC as a whole.

     

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