How concrete pumping fits into the CFA installation process

Once the CFA auger has reached the design depth, the next stage is concrete pumping. This is the phase where the pile is physically formed, with concrete delivered through the hollow auger stem under pressure as the auger is withdrawn, filling the bore from the bottom upwards. The way this is managed, from the specification of the concrete mix through to the rate of delivery and the coordination with auger withdrawal, has a direct bearing on the quality and consistency of the finished pile. Getting it right is a matter of preparation, logistics, and the right concrete specification for your specific ground conditions.

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