Polypropylene fiber is a kind of mesh structure, there are many fiber monofilament. It is a variety of dry and wet mortar,concrete and other engineering crack, anti-seepage, wear, insulation of the new materials. When this fiber is used in concrete,the equilibrium structure of the fiber monofilament is destroyed during the agitation process due to friction, and then the fiber monofilament or mesh structure will be fully extended, so that a lot of poly The acrylic fiber makes the concrete stronger.