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Polypropylene fibre

Polypropylene fibres may considerably reduce the danger of early shrinkage cracks.

By adhesion of water to the fibre surface, the process of desiccation is retarded, and the concrete strength may develop faster than the stress resulting from shrinkage.

Moreover, PP fibres have a significant influence on the behaviour of concrete components in fire. The fibres are characterised by a low melting point so that in case of a fire, pore volume is created. In case of a fire, sufficient space is thus available for the physically bound water to expand.

The PF fibre types are punched from a sheet, and primarily used in concrete screeds.pdf_button

pf pf PP PF

 

Name Length
(mm) 
Diameter
(μm) 
Cross
section
Shape Material Specific gravity
(t/m3)
Tensil
strength
(N/mm2) 
 PF 18/50 18 ± 10% 50 ± 10% Rectangular ksztalt03 Polypropylene 0,91 300 ± 15%

 MATERIAL SAFETY DATA SHEET