Concrete formwork

Details Concrete formwork Concrete formwork

E - Fixed Constructions

04

G

72/73

E04G 11/06 (2006.01) E04B 2/86 (2006.01)

Patent

CA 1182304

CONCRETE FORMWORK Abstract of the Disclosure Concrete formwork is provided comprised of a plurality of panels with backing plates tied together by tie wires or metal ties. In certain embodiments of this invention the panels are comprised of a material having a having insulating ability, but having relatively poor strength capabilities. Examples of these materials are polyurethane, polystyrene, and other foam plastics. The panels are arranged in a plurality of panel assemblies wherein each panel assembly includes a pair of panels spaced horizontally and tied together. The panel assemblies are arranged one on top of the other and end to and to form a com- plete wall. The panels have shiplap joint edges so that the joints between the panels interlock and are not in a single plane The panels can be easily manufactured on the site by a plastic foam producing machine and a molding machine. The backing plates and metal ties or tie wires can be molded in place when the panels are molded. the backing plates are located on the exterior faces of each pair of panel sets and in some embodiments run the entire length of the panel. The tie wires and metal ties pass through the panels and attach to the backing plates.

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