Gunite machine for sale in UAE

Gunite machine is used for spraying concrete in the construction project, which is divided to wet mix shotcrete machine and dry mix shotcrete machine according to different processes.

For dry mix shotcrete machine, it involves placing the dry materials into a hopper and then conveying them pneumatically through a hose to the nozzle. The nozzleman can control the addition of water at the nozzle. The dry and the water material is not completely mixed, but is completed as the mixture hits the receiving surface. Generally speaking, this requires a skilled nozzleman, especially in the case of heavily or thick reinforced sections. Abvious advantages of the dry mix process are that the water content can be adjusted by the nozzleman, allowing more effective placement in overhead and vertical applications without using accelerators. The dry mix process is useful in repair applications if it is necessary to stop frequently, because the dry material is easily discharged from the hose compared to wet mix process.

Wet-mix shotcrete machine 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 wet-process procedure generally produces less rebound, waste (when material falls to the floor), and dust compared to the dry-mix process. The more obvious advantage of the wet-mix process is all the ingredients are mixed with the water and additives required in advance, and also larger volumes can be placed in less time than the dry process.