Effect of steel fibres extracted from recycled tyres on plastic shrinkage cracking in self-compacting concrete

This paper investigates and compares the effect of steel fibres obtained through recycling waste tyres (known as RTSF), and a commercially available hooked steel fibre (HSF), on plastic shrinkage cracking in self-compacting concrete. The volumetric deformations of the specimens, bleeding, and the mass loss have been quantified. Mixtures containing 2.5, 5, 7.5 and 10 kg/m 3 of RTSF, and 5 and 7.5 kg/m 3 of HSF have been tested. The results show...