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What are the construction methods of concrete spraying machine?

2018-10-08

What are the construction methods of concrete spraying machine? Shotcrete shotcrete construction methods include dry spray, tidal spray and wet spray.
The dry spray method mixes the cement and aggregate in proportion and enters the sprayer. After that, air is used to constrain the material through the nozzle and pushed at high speed to the sprayed work surface. The mixing water is added through the water ring of the spray head.
The tidal spray method is to add appropriate amount of water in advance to the concrete, and when it enters the spraying machine, it incorporates an accelerator and replenishes a sufficient amount of water. The compressed air is used to push the material stream formed by the hose and the nozzle to the sprayed area at high speed. Work surface.
The wet spraying method sends the concrete mixture mixed with water according to the mixing ratio into the wet spraying machine, or adds the water into the mixing material and mixes it in the spraying machine or before entering the spraying machine, and mixes the mixture through the high pressure wind. The material is sprayed onto the sprayed surface.
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