HOSE WHIPPING - concretepumpers.com
2018-5-2 · The pump sucks air into the material cylinders through the hopper. ... the pump is pumping faster than concrete is being delivered, or 2.3 the hopper goes empty because the pump continues to pump after the ready-mix truck stops delivery or after it’s completely discharged, or 2.4 the concrete is so stiff that air is ... the hose to whip ...
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