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SHOTCRETE PRIMER by Jeff Smith Concrete shot through a nozzle is just right for a variety of repair and construction techniques In 1910, a double-chambered cement gun was introduced to the construction industry. The sand-cement product used with this device was called Gunite. In the ensuing years, the pneumatically applied material was called by many names, but today it is widely known as "shotcrete." Initially, its most frequent use was to cast in-ground swimming pools. But the introduction of new mixtures, and new equipment, have made shotcrete an appealing alternative to conventional concrete in a variety of new construction and repair situations. Cost and convenience are the primary benefits. Shotcrete is particularly cost effective where formwork is impractical, or where forms can