wet shotcrete machine for tunnel shotcrete
The wet shotcrete machine for tunnel shotcrete is easy to control the quality, and it is small dust and rebound during operating. However it is high requirement on the shotcrete machine and it is hard to clean the machine and maintenance. For thicker soft rock and leaking tunnel spraying project, it is not recommended to use wet spraying machine.
The wet shotcrete machine for tunnel shotcrete involves pumping concrete prepared in advance, usually ready-mixed concrete, to the nozzle. Compressed air is introduced into the mixture at the nozzle to promote receiving surface.
Compared to the dry mix during wet process generally produces less than rebounded waste, and dust. The biggest advantage of the method is a wet mixing all the ingredients with water and desired additives, a larger volume can also be placed in a much shorter time than the mixin