The polypropylene fiber for engineering is made of polypropylene as a raw material and manufactured by a special process. Commonly used polypropylene engineering fibers can be divided into two forms: monofilament and mesh.
Monofilament polypropylene fiber is a kind of high-strength polypropylene bundle monofilament fiber. It has special surface treatment technology to ensure the fiber has excellent dispersibility in concrete and the grip strength of cement body. Generally used in fine stone concrete.
The reticular polypropylene fiber has a mesh structure in which a plurality of fiber monofilaments are mutually connected to each other. When the polypropylene mesh fiber is put into the concrete, during the concrete mixing process, the transverse connection between the fiber monofilaments is destroyed by the concrete itself and the frictional action, and the fiber monofilament or the mesh structure is fully opened, thereby realizing the quantity. The effect of a large number of polypropylene fibers uniformly incorporated into concrete.
Engineering polypropylene fiber is a new type of concrete reinforcing fiber, called the “secondary reinforcing rib” of concrete. The quality of concrete blended with polypropylene fibers is improved and the overall performance is improved. It has the characteristics of simple mixing process, low price and excellent performance. As a new type of concrete reinforcing fiber, polypropylene mesh fiber is becoming a new hotspot in the research and application of fiberglass, steel fiber and stainless steel fiber fiber concrete.
