How does steel fiber help water conservancy projects?

Steel fiber concrete has high tensile, bending and shear strength, and can protect the integrity of mountain slope protection and other projects. It is used in water storage, anti-seepage, and water pipeline projects. This product has high resistance to erosion, abrasion, and gas. Because of its corrosion resistance, it can be used in parts such as spillways, stilling basins, and gate floors that are subject to the action of high-speed water flow. Secondly, it also has good corrosion resistance and can be used in corrosive environments such as sea water. In addition, because of its good performance, it is also widely used in highway pavements, bridges, airport pavements, etc.

Ordinary concrete will produce large expansion pressure under freeze-thaw conditions. When the pressure is greater than the strength of the concrete, it will crack the concrete and expand the original cracks. After steel fibers are mixed into concrete, the fibers will inhibit the cracks of concrete and resist the expansion pressure during freezing and thawing, thus effectively improving the frost resistance of concrete. The fiber volume ratio ρf is very sensitive to the frost resistance of concrete, and its degree of influence is related to the strength of the concrete matrix or the water-cement ratio.

We know that steel fibers can form a random support system inside concrete. This random support system helps to increase the absorption rate of kinetic energy when concrete is impacted. When subjected to impact loads, fibers can effectively hinder the rapid development of cracks in concrete and enhance the internal continuity of the material. At the same time, fiber concrete can also effectively absorb the kinetic energy generated due to impact loads and improve the impact resistance of concrete. The impact strength of fiber concrete is generally 5 to 10 times that of ordinary concrete.