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Shotcrete from Rock Solid Concrete

What is Shotcrete?

Rock Solid Concrete delivers shotcrete to all of the Greater Phoenix Area plus cities in Maricopa County and Pinal County (see city list below).

Shotcrete refers to a process in which compressed air forces mortar or concrete through a hose and 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.

Shotcrete is a dry mix with a water to cement ratio between 0.35 and 0.42. There’s more cement and less water so it can be shot from a nozzle under high pressure. Hence the name shotcrete.

Shotcrete Used for Building Swimming Pools

Swimming pools generally use shotcrete. The shotcrete when applied to the prepared pool structure does not flow. It can stay in place while the workers continue to work with it to form the sides of the new pool. Because it’s drier in nature, it doesn’t slide down the sides of the pool, but stays in place to create a firm surface to be plastered.

A shotcrete pool is a pool shell formed by spraying a ready-made mixture of sand, small-sized aggregate, cement and water that has already been prepared by Rock Solid Concrete. This is sprayed at a high velocity and pressure on the previously prepared pool sides.

Generally, the shotcrete gun nozzle is held at a right angle two- to six-feet from the surface. In most cases, shotcrete can be deposited in the required thickness in a single application.

After finishing, the concrete must be cured for a period of at least seven days.

Other Uses for Shotcrete

The shotcrete process was invented in 1911. It has been used successfully for a wide variety of building projects, including all types of residential and non-residential buildings. Shotcrete, can be applied to horizontal or vertical surfaces, so it is especially suited for curved or thin concrete structures.

Other applications include grain silos, fire proofing structural steel, and many civil engineering structures such as bridges, tunnels, dams, tanks, and earth retention systems.

Shotcrete is also sometimes used to build walls for different building needs. Although using shotcrete to form walls is new in the United States, the process has been used in other countries for years.

Shotcrete has recently been used to incorporate insulation into a wall unit. 4-by-8-foot panels of a polystyrene core is sandwiched between layers of wire mesh. Then the frame of wire mesh or rebar is formed into the shape of the exterior wall. Then conduit, pipe, and other utilities are installed between the polystyrene and the wire mesh. Then the entire structure is sprayed with shotcrete. The shotcrete covers the foam and hardens to form a reinforced wall with built in insulation.