Engineering polypropylene fiber, based on polypropylene as raw materials, manufactured by a special process. To ensure that the fiber has excellent dispersion and body with cement bond strength in concrete. Generally used in fine aggregate concrete, concrete fiber (concrete recommendations with 12-19mm dedicated fiber strength concrete cracking effect.) The following describes how its production process.
1, according to the amount of each concrete mixing party than in accordance with the requirements (or suggested dosage) accurately measure the weight of each fiber is added.
2, sand and gravel ready after the fibers are added. Compulsory mixer is recommended. The aggregate together with fiber agitated together. It should be noted should ensure that fiber is applied between the aggregate, dry mix for about 30 seconds, after the addition of water, wet mix for about 30 seconds, so that the fibers sufficiently dispersed.
3, after the completion of the stirring random sampling, such as fibers have been uniformly dispersed into monofilaments, the concrete can be put into use, if there is still a bundle of fiber is extended mixing time 20-30 seconds, can be used.
4. Add fiber concrete with normal concrete construction and maintenance processes are identical.
Incorporation of polypropylene fiber concrete quality has been improved, comprehensive performance is improved. Having a mixing process is simple, inexpensive, high-performance characteristics. It also has a strong alkali resistance, against all alkaline base Hydration erosion; with good dispersion, no unity, not a bundle, to ensure that the fibers are uniformly distributed binder; with higher toughness and strength, not easy to play in the mixing bent the ball.