The high strength bunched monofilaments organic fiber formed by the theory, its inherent resistance to strong acid, strong alkali, weak thermal conductivity, has extremely stable chemical properties. The addition of mortar or concrete can effectively control the micro-cracks caused by temperature changes and other factors in the initial plastic shrinkage stage of mortar and concrete, prevent and inhibit the formation and development of cracks, greatly improve the crack resistance and impermeability of concrete, impact resistance and earthquake resistance, and can be widely used in underground engineering waterproof. Roofing, walls, floors, pools, basements, roads and Bridges of industrial and civil construction projects. It is a new ideal material for crack resistance, seepage prevention and wear resistance of mortar and concrete

engineering.