Polypropylene fiber – this fiber, which are added to concrete before casting. Fiber fibers are evenly distributed in the concrete/mortar mix, intertwine and create the effect of "microkeratome".
The basic properties of polypropylene fiber:
- takes shrinkage stress
- reducing the appearance of microcracks (over 95%)
- reinforcement of concrete
- reduction of moisture absorption (up to 40%)
- resistance to low temperatures
- increasing the strength of concrete in bending
- reducing damage to the corners, edges, and the surface
!!! Polypropylene fiber is added to the dry mix!
Dosage:
- concrete from 0.6 to 2.7 kg/1m3
- the foam from 0.15 to 0.3 kg/1m3
- screed or sand-cement mortar – 0.6 kg
- Composition – 100% polypropylene
- Color: white
- Packaging: packages of 0,6 kg
- Length of fibers: 6, 12, 18 mm
- Fiber thickness: 0.069 mm
- Compressive strength with fibre: increased by 3% after 7 days and another 2% after 28 days