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Polyvinyl alcohol(PVA) fiber, a product independently researched and developed by Changzhou TianYi Engineering Fiber Co.,Ltd is designed for use in cement mortar or concrete to increase the internal quality, reduce maintenance cost and prolong service life of cement mortar and concrete. PVA fiber can reduce the formation of shrinkage cracking in cement mortar and concrete prior to the curing process and increase their toughness.
PVA fiber is produced from polyvinyl alcohol as main raw material which is subjected to a process of dissolution, spinning, heat-setting, cutting and baling to form a high-strength, high-modulus fiber. This high-strength, high-modulus PVA fiber can disperse quickly and easily in the mortar and concrete mix after being added into the base materials. Due to its fine micro structure and large specific surface area--a cubic centimeter of concrete can contain nearly thirty five fibers, the fiber can form a randomly oriented support system in concrete which thus can effectively control the formation and development of non-structural cracking such as plastic shrinkage cracking and drying shrinkage cracking, effectively reduce the segregation of aggregate and the formation of settlement cracking. As a result, the concrete’s impermeability, impact resistance, toughness and abrasion resistance are greatly improved and thus the architecture’s service life is greatly prolonged. High-strength, high modulus PVA fiber has higher tensile strength and elastic modulus than regular polypropylene fiber and can replace subordinate reinforcement bar in concrete, which makes it superior to PP fiber.
Product properties:
1. Color: light yellow
2. High strength and low elongation
3. Acid and alkali resistance: less strength loss than any other fiber at high temperature for extended period.
4. Light resistance: greatly less strength loss than other fibers after a long period of sun exposure.
5. Corrosion resistance: no mildewing, rotting and wormed damages after a long period of burial in dirt.
6. Dispersion: no adhesion, rapid dispersion in water, good compatibility with cemen
文章链接： http://www.tianyi-fiber.com/products/90
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