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The process of coating a surface by spraying with concrete or mortar is called SHOTCRETE.

In shotcrete, compressed air is used to push the concrete at a very high speed through an adjustable nozzle. The concrete speed can be controlled by increasing or decreasing the diameter of the nozzle.

There are two methods by which torcreting is performed:

Generally, shotcrete is used to fix unstable surfaces. They are reinforced with a metal net laid out on the outline, mesh covered by shotcrete.

Shotcrete is a common practice in road and tunnel construction and in the rehabilitation of old structures by adding a new high-strength concrete layer.