An European Accelerator Manufacturer's Views
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In the wide field of concrete works the technique of sprayed concrete has found its own independent place. The spraying technique itself, orginated in the USA in 1907 and patented under the name "Gunite" in 1910 by Allentown Pneumatic Gun Company refers to a cement-aggregate mixture with a maximum aggregate size of about 6-7 mm. Up until the end of World War 2, "Gunite" dominated the market.