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PP fiber or polypropylene fiber PF fiber or polypropylene fiber is one of the alternative materials for steel rebar for reinforcing concrete. The use of PP fibers in concrete is quite economical. Polypropylene fibers or PP fibers with dimensions of 12 and 18 mm are used for mixing with concrete and with a dimension of 6 mm for mixing with gypsum. These fibers increase the mechanical and chemical strength of concrete.
To improve the properties of concrete and cement-gypsum mixture, control shrinkage and reduce cracking. Fibers are easy to expand and contract due to their polymeric nature. Wet tolerates and prevents cracking of concrete
