SEE ALSO MORTAR AND STUCCO PUMPING

Concrete Grout is a fluid mixture made of cement, water, and sometimes fine sand. It does not contain coarse aggregates. It is typically pumped or poured into confined or narrow spaces, such as masonry block cores or between precast elements. Equipment includes grout mixers and low- to high-pressure pumps depending on the application. 

Shotcrete is a type of Concrete or Mortar that is applied by spraying it at high velocity onto a surface using a hose and compressed air. It is commonly used in situations where conventional formwork is difficult or impractical, such as tunnel linings, retaining walls, swimming pools, and slope stabilization.

Shotcrete can be applied using two methods: dry-mix or wet-mix. In the dry-mix process, dry ingredients are mixed and conveyed through the hose, with water added at the nozzle during application. In the wet-mix process, all ingredients, including water, are premixed and pumped through the hose, with compressed air added at the nozzle to assist in spraying.

The main differences between shotcrete, conventional concrete, and concrete grout lie in the materials used, application methods, required equipment, and formwork needs.