... steel fiber, it has the special features of anti-corrosion, anti-dispersion ,anti-operation, no damage to the mixing equipment ... tensile strength, the low-elongation ultimate of the concrete instead of anti-stretch, anti-bending, anti-fatigue, high-tenacity and so ... the danger from crack of the concrete; increase the intensity of anti-stretch, anti-bending, anti-breaking of the concrete2. Decrease the ...