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Glass Reinforced Concrete - GRC, ARTIC
- 1. 1 ARTIC GRC رتكآ� المحدودة للبالط العربية الشركة Arabian Tile Company LTD. ARTIC
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- 3. 45 Advisory ServiceAdministration ARABIAN TILE COMPANY LTD – ARTIC : Signature: Matthew Hanley Chairman of the GRCA Signature: Brian Foley President of The Concrete Society
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- 26. 5051 5051 ARTIC GRC Business Line
- 27. 5253 Technical Appendix GRC is a family of materials that can be defined by the addition rate of alkali resistant glass fibre. At one end of the spectrum low low dosages of dispersible fibers are used to control plastic shrinkage cracks in normal concretes (PCR). At the other end, integral fibers are used at high dosage levels to reinforce cemment-rich mortars (GRC). Most GRC products are manufactured by one of two process -Vibration Casting and spraying. The vibration cast form is normally referred to as «Premix GRC» Premix GRC is prodused in two stage process. A mixture of cemment, sand, water and chemical admixtures is first prepared in high speed mixer . Fibers are addedin the second stage withe a slower speed. The premix GRC s then poured into moulds and compacted by vibration Sprayed GRC is sometimes called «hand spray GRC» or «machine Spray GRC» debending on the method of manifacture. A mixture of cement , sand, water and chemical admixtures is prepared in a high shear slurry mixer. This is then placed in a machine that conveys the slurry to a special spray gun where the fibes are added at the nozzle as the GRC material is sprayed onto a mould. A third Production process called «sprayed Premix» is also often used for the manifacture of smaller elemennts and the application of renders. GRC Fiber contents for different GRC product types (KG of fiber per m3 of concrete) Plastic Shrinkage crack resistant (PCR) concrete Fibre- Modified Concrete Fibre- Modified Render hand spray GRC Spraying Premix GRC render vibraqtion cast Premix GRC Premix GRC Sprayed GRC 100 80 60 40 20 0 The strength of sprayed Grc is generally higher than Premix GRC. The table below show typical values for sprayed GRC and Premix GRC manufactured with 5% and 3% (by weight of mix) alkali resistant glass fibre
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- 29. 5656 المحدودة للبالط العربية الشركة Arabian Tile Company LTD. ARTIC Saudi Arabia, P.O. Box 143 Riyadh 11383 Riyadh - Tel: 009661 4567714 - Fax: 009661 4550672 Jeddah - Tel:022901243 / 022895601 fax:022881710 Dammam - Tel:038331250 fax:038328751 www.artic.com.sa