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Void Forming Machines

Void-forming tubes obtain very high radial rigidity by means of special corrugations and are thus highly suitable as void formers in concrete structures, but can also be used in culverts and casting forms for piles, plinths and columns.

As void formers these tubes are embedded, in order to reduce the concrete cross-sectional area and thus the dead weight of the structure. The reduction in weight is generally around 40% and this has a beneficial effect on foundations, frameworks and floor reinforcement. In the case of larger-diameter tubes the costs of the tube is covered by the saving in concrete.