MasterFiber

MasterFiber 241 SPA

Structural Macro Synthetic Fiber Reinforcement

Material Description

MasterFiber 241 SPA is extruded from polypropylene. Its surface is embossed to increase adhesion to concrete. The fibers improve the toughness and ductility of concrete, enhancing overall performance.

Complies with EN 14889 – 2 standard.

Areas of Application

MasterFiber 241 SPA can be used in aggressive and corrosive areas requiring high chemical resistance thanks to its high alkali resistance. Recommended applications include:

  • As reinforcement in wet and dry sprayed concrete applications

  • As a substitute for steel reinforcement in floor and road concrete

  • As reinforcement in structures continuously submerged in water

Characteristics and Benefits
  • Improves the ductility of concrete

  • Transfers tensile stresses and bridges cracks in cementitious applications

  • Decreases crack propensity due to constrained deformations induced by drying shrinkage and temperature gradients, allowing partial or full substitution of mesh reinforcement

  • Can be considered as structural reinforcement according to Model Code

  • Excellent resistance in alkaline and acidic environments

  • Provides rust-free reinforcing solutions

  • Easy to dose with limited impact on workability

  • Safe to handle

  • No negative impact on machinery wear