
The 1980s, people in the construction industry found that a fiber can be used in concrete to make it more robust, rapid development of late, it is the polypropylene fibers. In all areas of the construction industry in particular, it appears there is concrete.
Its role in the concrete specific performance in the following points:
Improve the impermeability of concrete: After incorporation of fiber, can effectively prevent the segregation phenomenon of cement concrete to improve the overall uniformity of the cast body; a significant reduction in the number of crack length and width, reduce the possibility of generating through the cracks played a blocking faulting hairline cracks in the concrete, so concrete impermeability improved significantly. At the same time, so that the moisture in concrete, chloride ion, the transfer rate of air is reduced, and thus play a role in delaying steel corrosion
Enhance toughness of concrete, anti-fatigue, improve abrasion resistance of concrete: fiber cement substrate was added, which reduces the brittleness of cement concrete to improve the toughness of the base material. Incorporation of fiber cement concrete can withstand tens of thousands of times, repeatedly stress the role of static strength and even a few million times, remains in good condition. This feature is often beneficial impact fatigue effects of some concrete structures (such as roads, sidewalks, pavement overlay, warehouses roads, etc.)
Improve the ability of concrete to resist freeze-thaw damage: Antifreeze label added fiber cement concrete is more than double