GRC PRODUCT INFO
Glass Reinforced Cement (GRC) is formulated with a cement and fine aggregate mix containing alkali-resistant glass fibre strands.
The fibre has a tensile strength 3 to 4 times greater than equivalent steel fibre, making it robust with high impact resistance.
Typically manufactured to a thickness of 10mm, GRC panels are much lighter than their precast equivalents.
The benefits of GRC cladding
- Can be formed to a variety of textures and colours.
- Provides durability and quality of finish as reconstructed stone.
- Ideal where limited access means small panels are required.
- No need for scaffolding or heavy cranes capacity.
- Unaffected by weather or labour shortages.
The Manufacturing Process
GRC is cast in fibreglass or rubber moulds which can be formed to almost any shape or pattern.
It is sprayed into the mould in layers, the first being a pure cement/aggregate mix to form the surface. Subsequent layers contain the chopped glass fibres.
The spray gun contains both the grout nozzle and a glass chopping gun, with grout and glass fibres sprayed simultaneously.
Each layer is compacted with rollers before the next is sprayed to a total thickness of 10mm.
The production cycle is 24 hours with the GRC unit being de-moulded 18 hours after casting.
Stiffening ribs and support/restraint fixings are readily formed in the GRC panel.
