What are the main types of steel fibers?

1. Sheared steel fiber: This kind of steel fiber is obtained by shearing steel plates. It is generally flat in shape and has hooks on both ends. Shear steel fibers can provide good tensile strength in concrete and improve the toughness of concrete.
2. Milled steel fiber: Milled steel fiber is made by milling thick steel plates, and its shape is generally rectangular or zigzag. This kind of steel fiber can provide a better bridge effect in concrete and improve the crack resistance of concrete.
3. Melt-drawn steel fiber: Melt-drawn steel fiber is made by drawing molten steel, and its shape is generally round or oval. The melt-drawn steel fiber has a smooth surface and can improve the fluidity of concrete.
These different types of steel fibers all enhance the physical properties of concrete to varying degrees. By adding steel fibers, the tensile strength, impact resistance, and crack resistance of concrete are significantly improved. This is of great significance in construction, roads, bridges and other projects, and can improve the service life and safety of the structure.