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What Is GRC

Glass Fibre Reinforced Concrete [GFRC or more simply GRC] is a mixture of cement, fine aggregate, alkali resistant (AR) glass fibre, chemical admixtures and water. The significant material of choice in the manufacture of GRC precast elements is alkali resistant (AR) glass fibre, which is manufactured from a specially formulated glass composition with optimum level of Zirconia (Zr02) to be suitable for use in concrete. It possesses high tensile strength and modulus, does not rust like steel and can get easily dispersed into concrete mixes. The addition of such high strength AR glass fibre in the concrete matrix enables both the fibre and matrix to retain their respective physical and chemical identities, while offering a synergistic combination of properties that cannot be achieved with either component through its singular application.

This environmentally friendly composite, with its low consumption of energy and natural raw materials, can be shaped into a wide variety of products and presently one of the preferred materials for most architects, designers, engineers and end-users for its versatility to meet performance, appearance and cost parameters.

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Strong and Lightweight

GRC architectural panels, jallis and other miscellaneous items have the usual appearance of precast concrete, but weigh substantially less than precast concrete in the range of 1800 —2000 kg/m3 due to its reduced thickness.

Versatile

GRC offers unrivalled creativity with the ability to accurately reproduce any small or large design, including historic ornaments, ornate patterns and complex shapes.

The material can be finished in a wide variety of textures and colours, giving designers greater control over the surface detail and quality of finish.

Durable

The weathering characteristics of GRC material is as good as any precast material. Unlike traditional reinforced cement, GRC uses alkali resistant (AR) glass fibres throughout the matrix to provide reinforcement, so it is neither at risk of corrosion nor requires further maintenance.

Environment - Friendly & Green Building Material

GRC precast elements use upto 80% less material than traditional precast concrete. GRC is generally cast in thin skin sections which consume less raw materials and energy during manufacture.

GRC prefabricated materials being durable and long lasting can reduce replacement, maintenance and repair costs in future.
GRC elements can be supplied prefinished to eliminate VOC's during painting at site.
GRC prefabricated elements are made of non-combustible materials and have no flame spread.
GRC precast elements perform extremely well under severe wind and rain conditions and certified to meet the Miami — Dade County Category 4 Hurricane rating for wind-blown debris.
GRC panels are widely used in seismic areas where the panel's light-weight and flexible connections to the building enable the skin to move during seismic events rather than collapse and fail.
A study by the Government of United Kingdom's DETR/Concrete Industry Alliance 'Partners in Technology' project compared GRC and precast concrete products that perform the same function. The results show that GRC has a much lower environmental impact by a factor of 60%, when compared to traditional precast concrete.