3.Concrete reinforcing material: Polypropylene staple fibre can also be used as concrete reinforcing material. When polypropylene staple fibre is added to concrete or mortar, it can improve the properties of concrete such as crack resistance, impact resistance, abrasion resistance and impermeability. This makes polypropylene staple fibre widely used in the manufacture of high-strength building materials, such as concrete reinforcing mesh and reinforcing steel mesh.

4. Asphalt road construction: In asphalt road construction, polypropylene staple fibre nonwoven fabrics are often used as waterproof intermediate layer and stress dispersion layer. Polypropylene staple fibre nonwoven fabrics are fully impregnated with asphalt from the upper and lower directions to form a stable asphalt bonding layer, which can disperse the stress from the cracks in the roadbed and concrete layer, prevent the emergence of reflective cracks, and thus prolong the service life of the road surface. At the same time, polypropylene staple fibre nonwovens can also prevent water on the asphalt pavement from entering into the road base and stabilise the load of the road base.