concrete spraying machine pump for raft foundation
The concrete spraying machine pump for raft foundation is also the preferred material / workmanship for underground stations, side drift, shops and provides long-term stability. It can be used as the ultimate or permanent lining of underground structures.
The concrete spraying machine pump for raft foundation is to use compressed air to convey the pre-dampened mix through delivery hose to the nozzle to project the material onto the sprayed surface under high velocity, and then to form concrete support layer after the projected material coagulates and hardens.
The concrete spraying machine pump working is dry mix materials (not including water) according to the design ratio directly feed the mix into hopper (by hand or by feeder) compressed air introduced through air compressor conveys the mix to the nozzle through delivery hose water .