The wet-gun procedure generally produces less rebound, waste (when material falls to the floor), and dust compared to the dry-mix procedure
Wet-mix Shotcrete involves pumping of a previously prepared concrete, typically ready-mixed concrete, to the nozzle. Compressed air is introduced at the nozzle to impel the mixture onto the receiving surface.
The greatest advantage of the wet-mix process is that larger volumes can be placed in less time.
All Shotcrete Products
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. It is typically reinforced by conventional steel rods, steel mesh, or fibers. Shotcrete 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. Shotcrete is placed and compacted at the same time, due to the force with the nozzle. It can be sprayed onto any type or shape of surface, including vertical or overhead areas.
Typical Shotcrete applications are such as: swimming pools, refractory installation, repair for bridges, walls, columns, beams, slabs, sewers, channels, piers and Gunite seawalls, Sand & gravel backfill, Civil & Infrastructure Projects, Mines, Tunnel Lining, Bank or Slope Stabilization.