Polypropylene Staple Fiber is mainly a material to improve the durability of concrete, if the fatigue resistance as a durability index of pavement concrete, the above understanding is certainly correct. In addition, the polypropylene fiber to improve the performance of concrete, including: by reducing the bleeding of concrete, so that the surface quality of the concrete can be improved, so that the wear resistance of concrete can be improved, and the blocking effect can significantly improve the concrete The anti-leakage performance. Polypropylene fibers also have no adverse effect on other concrete durability indicators such as permeability, frost and salt frost resistance, chemical resistance, etc. However, the extent of improvement is yet to be further studied.

    ①Polypropylene Staple Fiber  can eliminate or reduce the number and scale of the primary cracks in concrete, which can not only effectively prevent the concrete from plastic cracking, but also is very beneficial to the performance of the hardened concrete.

    ② Although Polypropylene Staple Fiber  can not improve the quasi-static load strength of hardened concrete significantly, the serviceability of pavement bridge deck concrete can be improved by improving the impact resistance and fatigue resistance of concrete.

    ③ Due to differences in fiber fineness and elastic modulus, the effect and mechanism of PP staple fiber and steel fiber on concrete performance are different, and each has its own advantages and disadvantages.

    ④ Due to the test evaluation method, small test pieces in the room can not fully display the effect of using polypropylene fiber in practical engineering, resulting in underestimation of the practical effect of PP staple fiber.

Hubei Bertachet Synthetic Fiber Co., Ltd. specializing in the production of polypropylene staple fiber is mainly used for non-woven polypropylene staple fiber, polypropylene staple fiber, decorative staple polypropylene fiber, polypropylene staple fiber and other health materials;