Larger-diameter pipelines require less pumping pressure than smaller-diameter pipes. However, there are disadvantages to using the larger conduits, such as increased blocking, bracing and labor needed. Regarding the concrete mix in relation to line diameter, the maximum size of aggregate should be no larger than one-third of the diameter of the line, according to ACI standards.
Pressure Difference Sensing & Reversing Hydraulic System
Once the concrete is in the hopper, it gets sucked into a valve system in small intervals or strokes. As some of the concrete is being sucked into the valve, the concrete before it is being simultaneously pushed through the concrete pipe on the pump truck boom until it reaches the end of the concrete hose and placed where you need it.Some concrete pump trucks have different types of valve systems, s-valves, ball-valves, but basically that's how a concrete pump works. As long as the hopper stays full and there are no blockages in the concrete hoses, the process of pumping the concrete goes quite smoothly.Having a good concrete pump truck operator is also very important. Their experience and wisdom is key to handling any problems that may occur, fixing them, and keeping the pour going.HOW CONCRETE PUMPS WORK
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