About Gunning shotcrete

"Wet gun" means the wet (already mixed) concrete is pumped to the nozzle. Air is added at the nozzle to carry the concrete mix to the target -- again pneumatically applied. We call the system "wet gunning." Here too operator training is important, but not quite as technical for wet gunners. Mistakes in application are usually far less critical than with dry gunning in Monolithic Dome construction. Rebound, or the waste created by sprayed concrete falling to the floor, is usually half as much for shotcrete as compared to gunite.

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