Does The Pipe Of A Screw Pile Need To Be Filled With Concrete After Installation?

Normally, the pile pipe does not need to befilled with concrete after installation, but if the water table is closer than1 m from the ground surface, it is recommended that the pile pipe be filledwith grouting, urethane foam, or sand. Filling the pile pipe with concretemight also improve the pile’s resistance to buckling and avoid one-sided pilepipe corrosion.