FAQ's

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Full contact details for the GRCA are available on the GRCA Contact page.

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Full contact details for all of the GRCA Members are available on the GRCA Members page. Please note that the GRCA Members' main office and contact details are listed and some Members may operate out of multiple locations and in many different countries worldwide.

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Full details about GRCA membership, including GRCA Membership Application Forms, are available on the GRCA Application Forms page.

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GRC / GFRC standands for Glassfibre Reinforced Concrete / Glass Fiber Reinforced Concrete, which is a fine concrete reinforced with Alkali Resistant glassfibres (AR Glassfibres).

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AR Glassfibres, or Alkali Resistant glassfibres, are glass fibres suitable for use in concrete which have a high alkali resistance (AR) as they have a minimum zirconium dioxide content of 16%.

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Glass fibres have an extremely high tensile strength, compared to their diameter, and this makes them ideal for reinforcing concrete where thin component sections and high tensile strengths can be achieved. Read more about Properties of GRC /GFRC.

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Normal glass fibres would become pitted and deteriorate in the highly alkaline environment of cementitious products such as concrete, which is why only Alkali Resistant glassfibres, with a minimum zirconium dioxide content of 16%, should be used.

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GRC / GFRC should be specified in accordance with the GRCA Specification for the Manufacture, Curing & Testing of Glassfibre Reinforced Concrete (GRC) Products.

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GRC / GFRC should be tested fully in accordance with the GRCA Methods of Testing Glassfibre Reinforced Concrete (GRC) Material at the frequency defined by the GRCA Specification for the Manufacture, Curing & Testing of Glassfibre Reinforced Concrete (GRC) Products.