Concrete formwork

Static structures (e.g. – buildings) – With synthetic resinous component – Foam

Patent

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Details

52426, 52562, E04B 200

Patent

active

045163723

ABSTRACT:
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 high 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 end to form a complete 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.

REFERENCES:
patent: 3149437 (1964-09-01), Wheeler
patent: 3383817 (1968-05-01), Gregori
patent: 3772842 (1973-11-01), Barbera
patent: 3788020 (1974-01-01), Gregori
patent: 4177617 (1979-12-01), DeLuca
patent: 4223501 (1980-09-01), De Lozier
patent: 4336676 (1982-01-01), Artzer

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