They are easier to feed and distribute into the concrete mix.
The increase of the tensile strength of cement mix through the addition of fibres has been the subject of special study in recent years. Fibres were initially added to improve the performance of material in regard to shrinking or cracking without taking maximum advantage of the structural possibilities offered. The first such structural applications in which fibres partially or even completely replaced traditional concrete reinforcement have appeared only recently. Fibres inside the cement matrix serve to provide a composite material in which the mix is enriched by the presence of reinforcement composed of fibres of various nature. Steel fibres are the most commonly used for such structural applications. La Gramigna steel fibres are usually constructed with low-carbon steel. Fibres function as a diffused element of strength that "sews" the flaps of the crack together and therefore it is clear that fibres become efficacious and improve concrete performance only after the matrix has set. La Gramigna steel fibres are specially shaped at the end for more efficient anchoring. The most important structural applications of concrete reinforced with La Gramigna steel fibres are currently industrial flooring, prefabrication sector and sprayed concrete.