How does steel fibre work?
Unlike wire mesh or rebar that has a defined plane in concrete, steel fibres reinforce in all directions and thus there is no weak plane for a crack to develop throughout the entire concrete matrix. Depending on the appropriate design, steel fibres can effectively suppress the growth of micro-cracks at early stage by intercepting and bridging them, therefore reducing their chances to develop into major flaws and even causing them to heal autogenously after a period of time.
