Polypropylene staple fiber is a high-strength bundled monofilament organic fiber formed by using fiber-grade polypropylene as a raw material and processed by a special process. Its inherent resistance to strong acid, alkali resistance, weak thermal conductivity and stable chemical properties. Adding concrete or mortar can effectively control the micro-cracks caused by factors such as solid-plastic shrinkage, dry shrinkage and temperature change of concrete (mortar), prevent and inhibit the formation and development of cracks, greatly improve the crack resistance and impermeability of concrete, and resist impact. And seismic capacity, can be widely used in underground engineering waterproofing, industrial civil construction of roofs, walls, floors, pools, basements, etc., as well as roads and bridges. It is a new ideal material for mortar/concrete engineering, which is resistant to cracking, seepage, abrasion and heat preservation.

The main function of polypropylene staple fiber: as the secondary reinforced material of concrete,  polypropylene staple fiber can greatly improve its crack resistance, impermeability, impact resistance, shock resistance, frost resistance, anti-wear, anti-burst, anti-aging performance and workability. , pumpability, water retention.

■ Prevent the production of concrete cracks

■ Improve the penetration resistance of concrete

■ Improve the freeze-thaw resistance of concrete

■ Improve the impact resistance, flexural resistance, fatigue resistance and seismic performance of concrete

■ Improve the durability and aging resistance of concrete

■ Improve the fire resistance of concrete

Polypropylene staple fiber application areas:

Water conservancy and hydropower projects, cast-in-place concrete and prefabricated components, municipal, highway, bridge, housing construction, industrial production of premixed mortar, etc.