Interlocking concrete form modules

Details Interlocking concrete form modules Interlocking concrete form modules

E - Fixed Constructions

04

G

E04G 11/00 (2006.01) E04B 2/86 (2006.01) E04C 1/40 (2006.01) E04C 2/04 (2006.01) E04G 11/18 (2006.01) E04B 2/02 (2006.01)

Patent

CA 2162445

Interlocking concrete form modules (21) suitable for creating a concrete wall form is disclosed. The modules (21) have the general shape of a right rectangular parallelepiped with parallel side walls (23a, 23b) joined by integral webs (25a, 25b, 27a, 27b, 27c) that define a plurality of parallel elongate cavities (31). The edges of the side walls (23a, 23b) include tongues (33a, 33b) and grooves (35a, 35b) thatallow the modules (21) to be interlocked to form a wall. The ends of the webs are undercut such that cavities between the modules are created when the modules aresuitably interlocked. The between-the-module cavities lie orthogonal to the through- the-module cavities. The modules (21) are formed of an insulating material and left in place. Preferably, the tongues along one edge include notches aligned with the webs. In one embodiment, the modules (21) substantially entirely are formed of relatively dense (3-5 lb./ft.3) expanded polystyrene (EPS). The density of the EPS is adequate to hold threaded wall anchors. In an alternate embodiment, the modules (41) are formed of less dense (approximately 1.5 lb./ft.3) EPS and include embedded nonmetallic attachment elements (55, 57) that are sized and positioned such thatsurfaces of the attachment elements lie coplanar with the outer surfaces of the side walls (43a, 43b) of the modules (41). Preferably, the nonmetallic attachment elements (55, 57) span substantially the entire height of the modules to create equi- spaced furring strips that cover substantially the entire height of a wall formed when the modules are suitably assembled.

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