Yulin polypropylene fiber mortar concrete tensile fiber engineering crack resistant fiber concrete short fiber

1、 The characteristics of polypropylene fiber HT-01 for concrete and its application The raw material of polypropylene fiber is high standard pure polypropylene, with special additives, which has resistance to acid, alkali, salt, etc. During the manufacturing process, polypropylene fiber undergoes special static electricity and direct light prevention treatment, so that the fiber is not agglomerated and evenly distributed in the concrete mortar, and has the characteristics of preventing direct light aging, To ensure that it can play a long-term role in concrete and thermal insulation mortar. The chemical property of polypropylene fiber is extremely stable, and it does not absorb other substances to react with it. Polypropylene fiber mainly changes the physical properties of concrete and mortar, and has good compatibility with cement coarse and fine base materials and other additives. When polypropylene fiber is added into the cement base material, the crack resistance will be increased by more than 1.2 times. The crack can be completely prevented under the condition of reasonable proportioning and standardized construction. When mixed into concrete or mortar, it can effectively control the cracks of concrete or mortar caused by plastic shrinkage cracking or temperature changes, prevent and ease the development of cracks, and thus improve the impermeability and crack resistance of concrete. Adding polypropylene fiber can also greatly improve the crack resistance and impact resistance of concrete or mortar, wear resistance, freeze thaw resistance, and reduce plastic settlement and cracking. 2、 Instructions, specifications and uses of polypropylene fiber HT-01 for concrete 1) 2 -- 3mm long fiber 2-3mm long fiber can be used in dry concrete mortar, putty and plastering, playing a good anti cracking role. 2) 6 -- 12mm long fiber 6-12mm long fiber, generally used for plastering, surface course, leveling course, primed concrete or thermal insulation mortar, etc. 3) 19mm long fiber 19mm long fiber is generally used for all kinds of concrete. Its mixing, transportation, pouring, curing and other processes are the same as those of concrete without fiber. 3、 The dosage of polypropylene fiber HT-01 for concrete is 1) 2-3mm long fiber is used as anti crack putty, and 0.5-1.0kg polypropylene fiber is added per ton of anti crack putty. According to actual requirements, longer length or slightly increased fiber consumption can be used. 2) Bottom mortar (larger aggregate particles are less than 1mm) uses 6-12mm long fiber, and in principle, 3g fiber is added per kg of cement. Generally, water is added after dry mixing. When the cement content of mortar per cubic meter is below 400kg, the lower dosage is 1.2kg fiber per cubic meter; When the cement content is more than 400kg, the fiber consumption shall be increased according to the requirement of adding 3g fiber for every kilogram of cement. 3) Concrete components, finished products and floor slabs for general structures: 19mm long fiber is used. When the cement content of concrete per cubic meter is 350kg, the lower dosage is 0.9kg fiber per cubic meter; When the cement content of each cubic meter of concrete is more than 350kg, the fiber consumption shall be increased according to the requirement of adding 2g fiber for each kilogram of cement. 4、 Physical properties and main parameters of polypropylene fiber HT-01 for concrete High standard polypropylene fiber shape Bundle monofilament cross section shape Y fiber diameter 10-40 μ M Density 0.91kg/m3 Length 2-30mm Tensile strength ≥ 350Mpa Elongation at break>15% Young's modulus ≥ 3.5 Conductivity Low melting point 165-175 ℃ Fire point 590 ℃ Dispersion excellent water absorption non acid alkali resistance strong soothing aging resistance strong stripping resistance strong safety harmless material Our company can provide 3-19mm long concrete Polypropylene fiber 。