How does polypropylene fiber affect concrete?

polypropylene fiber is mainly a material for improving the durability of concrete. If the fatigue resistance is regarded as a durability index of concrete for pavement deck, the above understanding is of course correct.

In addition, the improvement of concrete performance by polypropylene fiber also includes: by reducing the bleeding of concrete, the quality of surface concrete is improved, so that the wear resistance of concrete is improved, and the crack resistance effect can significantly improve concrete. Anti-leakage performance, etc.

1 polypropylene fiber can eliminate or reduce the number and scale of primary cracks in concrete. This effect can not only effectively prevent plastic cracking of concrete, but also beneficial to the performance of hardened concrete.

2 Although the polypropylene fiber can not significantly improve the quasi-static strength of the hardened concrete, the performance of the pavement bridge concrete can be improved by improving the impact resistance and fatigue resistance of the concrete.

Jiangsu Sisiyuan Fiber Co., Ltd. is engaged in the research and development of all kinds of engineering fibers, high-strength polypropylene filament, high-strength double-twist polypropylene filament, and integrated line management. The main products are: "Silk margin" brand polypropylene fiber, poly Acrylonitrile fiber, polypropylene mesh fiber, polyester fiber, high-strength polypropylene filament of various colors, high-strength double-twisted polypropylene filament; "new thinking" brand wood fiber; "Yunfan" brand industrial wire.