PAN crack-resistant fibers are mainly used in the following areas:

1. Concrete Structures: In bridges, tunnels, roads, and building structures, adding PAN fibers can reduce plastic shrinkage cracks and drying shrinkage cracks, improving the durability and service life of the structure.

2. Mortar Products: In plastering mortars, floor mortars, and precast components, PAN fibers can enhance crack resistance, improve surface quality, and reduce maintenance requirements.

3. Repair Materials: In concrete repair and reinforcement projects, PAN fibers can enhance the crack resistance and adhesion of repair materials, improving repair effectiveness.

4. Other Applications: PAN fibers can also be used in waterproofing materials, thermal insulation materials, and composite materials to improve their mechanical properties and stability.