Arthur D Hunt

US Patent:

20060239782, Oct 26, 2006

Filed:

Nov 8, 2005

Appl. No.:

11/269452

Inventors:

Arthur Hunt - Sugar Land TX, US

International Classification:

E02D 5/00

US Classification:

405230000

Abstract:

A method and apparatus for improving the shape of the underside of ribbed concrete slab-on-ground foundations, the foundation having earthen pads and trenched ribs, that includes positioning one or more shoring panels adjacent to at least one of the earthen pads along at least part of one vertical side of a rib, wherein the shoring panels are made from expanded polystyrene treated with a termiticide, backfilling sand in the void between the shoring panels and the earthen pad, dragging a screed across the top portion of the shoring panels to smooth the backfilled sand over the earthen pads, and pouring concrete within a perimeter defined by outer forms and over the earthen pads, backfilled sand, shoring panels, and trenched ribs. The ability to cut and form the panels provides a wide range of structurally efficient cross-sectional shapes with the concrete not possible with traditional methods.