Price: CNY 16 / kg
Min. Order: 500kg kg
PP fiber
Polypropylene Fiber
glassfiber fiber
Polypropylene fiber is a specialized in concrete / mortar, high-performance fiber, polypropylene staple fiber can effectively control the concrete / mortar plastic shrinkage, shrinkage, temperature changes and other factors caused by micro-cracks to prevent the and inhibit the formation of cracks in concrete native and development of greatly improved concrete / mortar crack impermeability, abrasion-resistant performance, increase the toughness of concrete, thereby enhancing the service life of concrete. Polypropylene staple fiber can be widely used in road, fence, deck; the concrete face rockfill dam and hydropower projects, spillway, diversion holes, water channels; the basement of the side wall, floor; industrial civil construction of the roof , walls, floors, pools of water, internal and external mortar Plastering; concrete prefabricated parts such as toughening anti-crack, polypropylene staple fiber is a kind of performance of concrete / mortar cracking impervious material.
Polypropylene staple fiber is used to add to the polypropylene masterbatch modified slices for blending, spinning, drawing and made. Polypropylene staple fiber through a special anti-static and anti-UV processing, the fibers uniformly dispersed in the concrete, long-term play to their effectiveness; the Fiber "Y" cross-section to increase the fiber surface area; fibers through chemical and physical modification , the surface rough and porous, significantly increasing fiber and cement-based Aggregate bonding. Fiber concrete by reducing the occurrence of native and number of cracks to improve the performance of concrete, and concrete aggregate, admixture, admixture, cement, there will be no conflict and chemical reactions, so with the concrete material has a good adaptability.
Polypropylene staple fiber mechanism
In the hardening process of concrete, cement and water hydrates reactions caused by volume shrinkage of concrete, in the latter part of the concrete caused by shrinkage in the free water evaporation, the shrinkage stress exceeds the tensile strength of cement matrix will be generated internally in the concrete micro-cracks. The development of micro-cracks in about 70% are completed within 3-7d gel, this time the tensile strength of concrete is less than 1MPa. In concrete by adding tough series of concrete mortar fibers, the fiber can easily be dispersed quickly to form a kind of chaos in the concrete to the support system, distributed directional stress of concrete to prevent the occurrence of cracks in concrete the Central Plains Health and development, to eliminate or reduce of native micro-cracks in the number and scale, greatly improving the impermeability of concrete cracking capacity, to improve the toughness of concrete, thus extending the service life of concrete. In addition, as fiber itself has a certain strength, fiber uniformly dispersed in the concrete and form the anchor role, and its moment to absorb the certain destruction of energy.
The main function of Polypropylene staple fiber is to
improve the anti-cracking performance;
improve the impermeability;
improve impact resistance and wear resistance;
improve the frost resistance;
improve the toughness;
increase the fire resistance of concrete to improve anti-knock function;
improve the quality of concrete products.
Package: 25kg per plastic bag; or according to client's demand.