Betofibre ST50

Polypropylene fibres, 6mm and 12 mm long, for concrete

Product Description

Betofibre ST50 are class II structural polymer fibers, in compliance with EN 14889-2:2006, with a length of 50 mm respectively, developed to improve the performance characteristics of conventional concrete, pre-cast concrete and shotcrete.

Field of Application

· Prevent shrinkage in ready-mix concrete and precast concrete.

· Fire-resistant concrete structures.

· Precast concrete segments for final lining of tunnels, etc.

Product Details

Product identity

Length of fibres (mm): 50
Equivalent diameter of fibres (mm): 0.4
Density (g/cm³): 0.91
Number of fibres per kg: > 150,000
Melting point: 155-165°C
Water absorption (%): < 0.01
Resistance to alkalis, acids and salts: high
Tensile strength (N/mm²): 660
Elastic modulus (N/mm²): 5,000


Betofibre ST50 is supplied in:
– 5 kg plastic bag

Application Procedure

Betofibre ST50 is either added simultaneously with the water. Betofibre ST50 may be combined with many other products and is compatible with all types of cements and cementitious materials.