
Many contractors have come to realise the advantages of using our range of polypropylene fibres in extruded concrete. The addition of these fibres is now an accepted practice when it comes to completing high quality contracts with this traditionally difficult process.
Fine plastic shrinkage cracks that occur in the surface of the concrete will result in greater penetration by water, petrol, chemical or de-icing salts. This significantly reduces the life span of the extruded sections.
The particularly low water cement ratio mixes used in extruded concrete can be subject to surface tearing when the extruder operates on corners and bends. This results in early and costly deterioration.
Often, the machines used are so efficient at compacting the concrete, the entrained air used to provide freeze thaw protection is removed. Thus leaving the concrete without the required protection.