Most GRC products are manufactured by one of two processes-Vibration Premix Casting and Sprayed GRC.
The vibration cast form is normal referred to as “Premix GRC”. Premix GRC is produced in a two stage process. A mixture of cement, fiber, sand, water and chemical admixtures is first prepared in a high speed mixer. Fibres are added in the second stage with a slower speed. The Premix GFRC is then poured into moulds and compacted by vibration.
A Cementitious slurry is mixed consisting of the core material, in a High Shear Mixer. Then, it is sprayed along with Glass Fiber’s and built up in thin layers until the required thickness is achieved. It is compacted using a roller in intervals during the above process.
With our 30 years’ experience, we have completed large number of projects with numerous satisfied clients all over the GCC countries and, are a world leader in GRC. We have a reputation for solving design and construction problems for our clients.
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GRC can be used wherever a light, strong, weather resistant, attractive and fire retardant material is required.
GFRC can be used in manufacturing architectural products such as wall panels, window surrounds, column covers, soffits, cornices, brackets, quoins, railings, pilasters, copings, domes, site furnishings, planters, bollards, urns and tables.
GLOBECLAD has pioneered its use in other areas including sandwich panels, bus shelters, security barriers, noise barriers, marine structures, cable ducts, floating pontoons, sunscreens and storage tanks.
As an engineered material, the properties of GRC can vary depending upon mix design, glass content and production methods. Glass fiber used in quality GFRC has a higher tensile strength than steel. As a general rule, the higher the fiber content, the higher the strength. A typical mix with 5% glass fiber has a compressive strength of 6,000 to 8,000 psi.
Glass fiber reinforced concrete has been tested both by accelerated aging tests in the laboratory and in real life installations. GRC can be expected to last as long as pre-cast concrete. In many environments, as when exposed to salt spray or high moisture, the GRC can be expected to perform better, as there is no steel reinforcement to corrode. Since the surface of GRC is a Portland concrete, it weathers much as a quality architectural pre-cast concrete would.