EFFECTIVE FRACTURE ENERGY OF ULTRA-HIGH-PERFORMANCE FIBRE-REINFORCED CONCRETE UNDER INCREASED STRAIN RATES

Authors

  • Radoslav Sovják Faculty of Civil Engineering Czech Technical University in Prague
  • Jana Rašínová Faculty of Civil Engineering Czech Technical University in Prague
  • Petr Máca

DOI:

https://doi.org/10.14311/AP.2014.54.0358

Abstract

The main objective of this paper is to contribute to the development of ultra-high performance fibre reinforced concrete (UHPFRC) with respect to its effective fracture energy. Effective fracture energy was investigated in this paper considering different fibre volume fractions and different strain rates. It was concluded that the effective fracture energy is dependent on the strain rate. In addition, it was found that higher fibre volume fractions tend to decrease the sensitivity of the UHPFRC to increased strain rates.

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Author Biography

  • Radoslav Sovják, Faculty of Civil Engineering Czech Technical University in Prague

    Experimental centre

    Faculty of Civil Engineering
    Czech Technical University in Prague

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Published

2014-10-31

Issue

Vol. 54 No. 5 (2014)

Section

Articles

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How to Cite

Sovják, R., Rašínová, J., & Máca, P. (2014). EFFECTIVE FRACTURE ENERGY OF ULTRA-HIGH-PERFORMANCE FIBRE-REINFORCED CONCRETE UNDER INCREASED STRAIN RATES. Acta Polytechnica, 54(5), 358-362. https://doi.org/10.14311/AP.2014.54.0358