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

Authors

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

2014-10-31

Issue

Vol. 54 No. 5 (2014)

Section

Articles

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
Received 2014-08-03
Accepted 2014-08-21
Published 2014-10-31