GRC (glass reinforced concrete) spray mix is a fibre reinforced pre-cast concrete with a 50-50 sand cement matrix in a typical wall thickness of 12 to 15mm thick. Hollow rib profiles created around the perimeter and across the rear face at designed centres. provide the structural integrity of the components. These ribs are between 50 and 100mm in depth and are not visible once the façade is assembled.It is a technology proven in use over 25 years and GRC provides the designer with options for façade design that few other materials can match for versatility.
GRC or GFRC is made in thin concrete sections created by a proprietary process of machine spraying an enriched OP cement and aggregate mix within which alkali resistant glass fibres provide the reinforcement. Unlike steel, glass fibres will never rust and are placed throughout the thickness of the panels.
GRC is approximately 80% lighter than pre-cast steel reinforced concrete cladding, it offers greater versatility due to its superior compressive strength and most importantly its flexural properties. Due to the reduced weight it is environmentally friendly in comparison to pre-cast concrete with lower co2 emissions caused during manufacture. The emission reductions are significantly enhanced if the reduced load on the superstructure with the resultant economies in structural frame and foundations are taken in to account.GRC receives a BREEAM A+ material rating and is easy to handle and fast to erect due to its lightweight mounting on a range of bespoke support systems.
There is virtually no limit to the shape or profile that can be created in a variety of smooth, profiled or textural finishes. Moulds can be created to replicate the most complex of profiles in restoration, renovation and new construction.
Support systems can be adapted to meet the demand for unitised off site construction.