Refractory small shotcrete building sprayer machines cover a wide range of applications, from low-cost refractories to high-volume civil engineering work. Typical shotcrete applications include swimming pools, fireproof equipment, furnace sprays, bridges, walls, pillars, beams, floors, sewers, waterways, piers, shotcrete shore repairs, sand, and gravel backfills, Includes civil and infrastructure projects, mines, tunnel linings, and embankments. Or slope stabilization.