Shear Performance of Steel Fibre-Reinforced Concrete

This paper presents results from an experimental study and an analytical assessment on the shear performance of steel fibre-reinforced concrete. Federation Internationale de la Precontrainte (FIP) standard shear tests were conducted on normal- and high-strength steel fibre-reinforced concrete (SFRC) specimens. Test parameters investigated include compressive strength of the concrete and fibre volume fraction. It was found that the steel fibres with a dosage of up to 80 kg/m3 enhance the ultimate shear capacity of the concrete up to 70 precent compared to plain concrete shear capacity. It was also observed that ultimate shear capacity of SFRC, with fibre dosage above 40 kg/m3, was higher than cracking shear stress. An equation, based on regression analysis, is proposed to predict the shear capacity of the tested SFRC.

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