Cement Gun
cement gun
[si′ment ‚gən]Cement Gun
a device used to coat the surfaces of structures with mortar or a concrete mix. Soviet cement guns equipped with a sluice drum are designed for concrete mixes with filler no coarser than 10 mm and have an output of 1.5 cu m per hour; those equipped with a sluice chamber are designed for concrete mixes with filler no coarser than 25 mm and have an output of 4 cu m per hour. Both types are capable of delivering the mix over a horizontal distance of 200 m and a vertical distance of 30 m.