What is shotcrete? difference between concrete and shotcrete?

Shotcrete or sprayed concrete is concrete or mortar conveyed through a hose and pneumatically projected at high velocity onto a surface, as a construction technique, first used in 1914. It is typically reinforced by conventional steel rods, steel mesh, or fibers.

Shotcrete is placed and compacted/consolidated at the same time, due to the force with which it is ejected from the nozzle. It can be sprayed onto any type or shape of the surface, including vertical or overhead areas.

It is usually an all-inclusive term for both the wet-mix and dry-mix versions. In pool construction, however, shotcrete refers to wet mix and gunite to dry mix. In this context, these terms are not interchangeable.

What is the difference between concrete and shotcrete?

The main difference between shotcrete and concrete occurs during its placement. Concrete is applied using a mixing truck, which readies the mixture and pours it onto the ground. The fresh concrete is then vibrated to flush out air and to make sure its compact. Conversely, shotcrete is placed using a cement gun.

Which is better shotcrete or gunite?

The hose is slightly heavier than that in the gunite process, since it contains the much heavier water-cement-gravel mixture. Shotcrete equipment is much simpler, and requires less individuals to operate it. This is a mixture of fine-grained cement and sand.

Read also: Earth pressure
Hydroelectric  Gravity Dam