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How to use the wet mix shotcrete machine chapter 2

Date:2022-03-21     Label:

wet mix shotcrete machine

Continuing from the previous article on how to use the wet mix shotcrete machine, this article will continue to give a further introduction to the use of the wet mix shotcrete machine.

5. Remove the sand bag or sagging concrete on the sprayed surface of the wet mix shotcrete machine in time, so as to re-wet spray; when the wet spraying work is over, carefully clean the nozzle of the wet mix shotcrete machine.

6. Preparation of the surface to be sprayed When repairing the damaged structure, first remove the loose material from the wet mix shotcrete machine, rinse it thoroughly with pressurized water, and then blow away the accumulated water.

7. The operation of the wet mix shotcrete machine can affect the rebound, the compactness of the concrete and the uniformity of the material flow. It is necessary to correctly control the working air pressure of the wet mix shotcrete machine and ensure the uniformity of the nozzle material flow. The working air pressure at the wet mix shotcrete machine should be adjusted according to the appropriate wet spraying speed. If the working air pressure is too high, the wet spraying speed is too large, the kinetic energy is too large, and the rebound is increased. The strength is small, which affects the strength of the concrete. The material flow of the wet mix shotcrete machine should be uniform to ensure that the accelerator is evenly distributed in the concrete.

Regarding the use of  the wet mix shotcrete machine, continue to share in the next article.

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