Functions of polypropylene fiber in cement mortar?
Writer： admin Time：2023-10-31 17:34 Browse：
1. Improve the impermeability of concrete: after adding fiber, it can effectively prevent the segregation of cement concrete.
2. Improve the overall uniformity of the casting body; Significantly reduce the number, length and width of cracks, reduce the possibility of generating through cracks, play a role in blocking capillary cracks in concrete, and significantly improve the impermeability of concrete. At the same time, the transfer rate of water, chloride ion and air in the concrete is reduced, so as to delay the corrosion of reinforcement and improve the toughness and fatigue resistance of concrete.
3. Improve the impact and wear resistance of concrete: adding fiber to cement matrix can reduce the brittleness of cement concrete, 4. Improve the toughness of base material. The cement concrete mixed with fiber can withstand tens of thousands or even millions of repeated stresses of static strength, and still maintain a good state. This characteristic is beneficial to some cement concrete structures that are often subjected to impact fatigue (such as roads, sidewalks, pavement overlay, warehouse pavement, etc.)
5. Improve the ability of concrete to resist freeze-thaw damage: the frost resistance grade of cement concrete added with fiber is more than doubled. Hope it helps.
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