Shotcrete refers to a process in which compressed air forces mortar or concrete through a hoseand nozzle onto a surface at a high velocity and forms structural or non-structural components of buildings. The relatively dry mixture is consolidated by the force of impact and develops a compressive strength similar to normal- and high-strength concrete.

Materials used in the shotcrete process are generally the same as those used for conventional concrete-portland cement, lightweight aggregate, water, and admixtures. Shotcrete projects also call for the same types of reinforcement specified for conventional concrete, including deformed bars, welded wire fabric, and prestressing steel.