Concrete Pump Operation with Shotcrete Typical wetprocess shotcrete

Concrete Pump Operation with Shotcrete

Typical wet-process shotcrete jobsite setup.

Wet Shotcrete uses a 185 -210 cfm air compressor

Wet Shotcrete Nozzle – Air from a 185 cfm – 210 cfm compressor is added to the wet concrete flowing through the hose to give it velocity so it will spray against the wall. If this nozzle is not used, the concrete simply comes out in a stream.

Ready-Mix Trucks can deliver very low-slump concrete suitable for shotcrete applications.

Mobile Mixer Trucks can deliver very low-slump concrete suitable for shotcrete applications.

Wet shotcrete is a very difficult material to spray because the slump is very low – it is “sticky” and does not flow easily.

It is always a very good idea to “prime” or “lubricate” the pipeline with some type of primer before attempting to push this sticky, dry concrete through them. This avoids plugs in the pipeline.

Only heavy-duty clamps should be used on all of the reducers and hoses in the pipeline!

While operation of the machine is very simple, it is important that the operator reads his manual before operating the machine.

An optional radio remote control is sometimes used.

It is very easy to change the output of a variable displacement piston hydraulic pump by simply twisting a knob.

Hose Reels are common on both wet and dry shotcrete rigs (trucks)

Man baskets are a very popular way to access hills and walls

The Nozzleman’s application technique is very important.

The Nozzleman’s application technique is very important.

It is EXTREMELY important to clean all of the concrete out of the hopper and cylinders after each job to avoid buildup.

It is also extremely important that all of the lubrication points are greased to extend the life of all parts of the machine.

It is also extremely important that all safety rules are followed.

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