Concrete, fibrous sort of concrete is that its manufacture of the fibers used are cement, water, aggregates and additives, along with mixed fibers. fibers causes increase the connectedness, tensile strength, reduced Cracking of concrete and increase the softness, the concrete is. Free fibers and their size, the type of consumption of concrete and the tensile strength desired depends. The fibers can be glass fibers or metal fibers, or fibers of polymer is and the size of them is usually 3 to 20 mm .