Polypropylene staple fiber has played such a big role in the construction of the project!

Polypropylene staple fiber is a secondary reinforcement added to prevent or reduce the initial plastic cracks of concrete. It is made of modified masterbatch added to polypropylene chips for blending, spinning and stretching. It is used for mortar concrete crack resistance Impervious engineering fibers. Its material is modified polypropylene.

Polypropylene staple fiber undergoes special anti-static and anti-ultraviolet treatment to make the fiber evenly dispersed in the concrete and can exert its effect for a long time; the fiber trilobal cross-section increases the surface area of the fiber, and the fiber is chemically grafted and physically modified. The surface is rough and porous, which greatly improves the binding force between fiber and cement-based material. Adding to the concrete base material, it can be quickly and evenly mixed with the mortar concrete material.

Due to the fine fibers and large specific surface area, there are about 45 fibers per 1 cubic centimeter of concrete, so it can form a chaotic support system inside the concrete, which can effectively control the early plastic shrinkage of concrete and cement mortar. The occurrence and development of non-structural cracks such as shrinkage effectively hinder the segregation of aggregates and the formation of settlement cracks, greatly improving the quality of concrete engineering and greatly reducing the cost of engineering maintenance.

Therefore, polypropylene staple fiber has become an indispensable material in engineering construction!