Between polypropylene fiber works and what to do with it concrete, polypropylene fiber on concrete projects What is the role?

Manufacturing Engineering polypropylene fiber concrete major project using short polypropylene fibers having a certain aspect ratio (ie the ratio of the polypropylene fiber works of length to diameter) of. But sometimes also use long polypropylene fiber works (such as glass fiber roving engineering polypropylene, polypropylene fibrillated film) or polypropylene fiber engineering products (such as glass fiber polypropylene mesh construction, engineering polypropylene glass fiber mat) . Its ultimate tensile strength can be 30 to 50%.
The main effect of polypropylene fiber works in polypropylene fiber concrete project, intended to limit the expansion of the cement binder cracks in the external force. In Loaded (tensile, bending) early, and when mixed with the right ingredients suitable superplasticizer, the cement-based material and polypropylene fiber works together to withstand external forces, while the former is the main force of the bearer; when the base material cracking after across the crack polypropylene fiber engineering to become the main force of the bearer.
If polypropylene fiber volume content of the project is greater than a critical value, the entire composite material can continue to withstand high loads and have a greater deformation until polypropylene fiber works project or polypropylene fibers pulled off from the base compound is set aside so that the composite material damage. Compared with ordinary concrete, polypropylene fiber reinforced concrete construction with high tensile and flexural ultimate strength, especially toughness of increase large.

We Sisiyuan engineering specializing in the production of polypropylene fibers.