High Zirconia Alkali-Resistant Glass Fibre

• Replacement of steel mesh in ground-supported concrete slabs
• Reduces shrinkage cracks
• Reduces labour costs
• Invisible at the surface
• Easy to handle and transport
• Improved distribution within the concrete due to similar densities
• ‘3-Dimensional’ reinforcement
• Higher tensile strength than steel or traditional concrete fibres
• Dosage 1-3kg per cubic metre of concrete
• Unlike steel mesh, cannot be misplaced or distorted

General Mixing Recommendations

Central Mixing Plant

• Fibres should be introduced directly into the fresh concrete, preferably at the end of the mixing cycle
• Fibres should never be added as the first component

In the Truck Mixer / Site Mixer

• Mixing speed should be set at maximum (around 15 rpm) before adding the fibres
• Concrete slump should be approximately 100 mm, adjusted using plasticisers
• Add the fibres gradually at a rate of approximately 2 kg per minute
• Once the fibres have been added, continue to mix at maximum speed for a period of one minute
• For small site mixers, adjust the dosage pro-rata

Dosage

For use as crack-control

• 0.6 kg per cubic metre

Replacement of steel mesh / steel fibres in Ground Supported Concrete Slabs

• 2-3 kg per cubic metre