The fact that the steel fibers can improve the concrete as construction material made us explore and make a list of the benefits of using steel fibers in  the concrete. Steel fibres can be distributed throughout the concrete and the need of the reinforcing bars or wires is on the place they are required; Steel fibres are short and closely spaced compared with continuous reinforcing bars of wires; can not be achieved the same reinforcement to a particular area of concrete using steel fibres compared with using a network of reinforcing bars of wires; Steel Fibers are added to concrete in low volume dosages (less than 1%), and they are effective in reducing plastic shrinkage cracking; they do not significantly alter the free shrinkage of concrete, but in high enough dosages they can increase the resistance to cracking and decrease crack width (Shah, Weiss, and Yang 1998).
They can improve: cracking, impact and fatigue resistance of the concrete, shrinkage reduction, toughness – by preventing/delaying crack propogation from micro-cracks to macro-cracks…

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