What is polypropylene fibers?

The polypropylene fiber is a polypropylene as the main raw material, a unique production process spun the bundle high strength monofilament fiber, the fiber surface activation treatment after coating to ensure that the excellent dispersion of fibers in concrete and cementbody bond strength concrete (mortar) can effectively control micro cracks caused by plastic shrinkage, drying shrinkage, temperature changes and other factors, to prevent and suppress the formation and development of cracks, used to enhance the concrete / mortar impermeability impactand seismic capacity.

Technical indicators:
Technical data Tensile strength
(Mpa) modulus
(Mpa) proportion of elongation at break
(%) Mp
(℃)
 Ignite
(℃) diameter
(Um) length
(Mm)
  Fiber type
  Polypropylene fibers> 320> 3900 0.91 <35 165> 583 20-60 3-19
 

Action principle:
        Rely on a large number (more than 20 per cubic centimeter) high tensile strength, high aspect ratio, high bond strength filaments uniform chaotic distribution inside the concrete. Micro-cracks formed early in the hardened concrete are blocked in the development process, it is difficult to further development.
        Complete physical reinforcement, strong acrylic fiber added as if a huge number of fine ribs incorporated in the concrete, the concrete cracking process is suppressed to improve the fracture toughness of the concrete, so as to achieve the purpose of improving the properties of concrete.

Product Features:
       Improve concrete, mortar crack resistance, impact, abrasion, impermeability, seismic capacity.
       Improve the toughness of concrete, ductility, fire resistance, and explosion-proof function, sprayed concrete to reduce rebound.