GRC is a composite resulting from mixing water with an aggregate, white or grey cement and
suitable admixtures, in which short length glass-fibers are dispressed
The obvious difference is the presence of fibreglass reinforcement. In a traditional reinforced
concrete, the steel reinforcement takes over tensile stress, while the concrete takes over
compressive stress. Likewise, with GRC – lightweight and durable fibreglass transports tensile
stress, while the concrete mass protects fibres from corrosion, UV radiation, variable temperatures or impurities, and it also transfers compressive stress.