For typical building cladding panel construction, GRC castings are manufactured by spraying a series of layers of polymer-concrete material with glass fiber reinforcement in a female mould. An engineered steel frame is bonded to the casting, allowing the panels to be installed to a building's structural steel or concrete slab by either bolt fixing or welding.
| Property | 28 days | Aged |
|---|---|---|
| Density (Dry) | 20 KN/m3 | 20 KN/m3 |
| Compressive Strength | 70 MPa | 70 MPa |
| Limit of Propotionality | 8 MPa | 9 MPa |
| Modulus of Rupture | 22 MPa | 11 MPa |
| Tensile Yield Strength | 6 MPa | 6 MPa |
| Tensile Ultimate Strength | 9 MPa | 6 MPa |
| Shear Strength | 9 MPa | 6 MPa |
| Modulus of Elasticity | 17,000 MPa | 20,000 MPa |
| Coef. of Thermal Expansion | 1.5 x 10-6 / o C MPa | 1.5 x 10-6 / o C MPa |
| Shrinkage / Swelling | 1 mm/m | 1 mm/m |