Apparatus for creating a void beneath a suspended structural concrete slab

摘要

There is disclosed herein a void forming and suspension system (10), which generally consists of a plurality of void forming elements (12, 16) arranged to extend over a ground surface (22) upon which the building is to be constructed. As will become more apparent in the following description, the void forming system (10) functions to act as an interface between the ground surface (22) and a concrete slab (20) of the building to be constructed, while the slab is being formed. Once the slab (20) is formed and the wet concrete for forming the slab has hardened, the void forming system degrades to create a cavity into which swelling ground can expand.