Steel fibre-reinforced concrete: review

The studies on fibre-reinforced concrete are vast, with different fibres used, cement types, binders' proportions, additives, and admixtures.Steel fibres (SFs) are the most used fibres when it comes to tensile strength.The paper gives a basic understanding of the behaviour of SFs as a reinforcing element.The SFs properties (shape, aspect ratio, and volume fraction) are highly effective in improving the steel fibre-reinforced concrete (SFRC).The addition of SFs changes the mixture and enforces new conditions for mixing it and what proportions to use.SFRC has proven a better performance in toughness as the energy absorption and ductility of the SFRC have improved; post-cracking strength has also seen improvements as the SF that have a sufficient bond with the matrix are able to bridge the cracks and transfer the stresses also the improvements of the mechanical properties of the SFRC and the flexural strength being the most sensitive to the SFs addition.