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An insulated wall is made of spaced-apart, parallel, foamed plastic sheets between which concrete is poured to form a concrete wall faced with such sheets. Before the concrete is poured, these sheets, which comprise numerous, small panels that are interconnected edge-to-edge are secured together by

An insulated wall is made of spaced-apart, parallel, foamed plastic sheets between which concrete is poured to form a concrete wall faced with such sheets. Before the concrete is poured, these sheets, which comprise numerous, small panels that are interconnected edge-to-edge are secured together by numerous ties. Each of the ties is formed of a pair of parallel, vertically-elongated, thin, rigid, sheet metal plates that are connected together by thin, horizontally-elongated sheet metal strips whose opposite ends are connected to their respective plates. Each plate is snugly inserted within aligned edge pockets formed in the abutting edges of adjacent panels so that the plates assist in aligning and interconnecting the adjacent panels. The edge pockets have vertically-elongated slots that open at the interior faces of the panels, and the plates each have a central, vertically-elongated embossment snugly fitted within and exposed through its respective slots for aligning the panel end pockets and for securement to the ends of its respective strips. In addition, the plates have tooth-like strike-outs which embed within the pocket walls to hold the panels from moving due to the hydrostatic forces during the pouring of the concrete.

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A concrete wall form tie system comprising: a pair of parallel, spaced-apart foam plastic sheets, each formed of a numerous panels that are engaged together edge-to-edge to form a sheet; a poured and cured in-place concrete core filling the space between the sheets to form a composite, plastic-concr

A concrete wall form tie system comprising: a pair of parallel, spaced-apart foam plastic sheets, each formed of a numerous panels that are engaged together edge-to-edge to form a sheet; a poured and cured in-place concrete core filling the space between the sheets to form a composite, plastic-concrete-plastic construction; aligned pockets formed in at least some of the engaged edges of adjacent panels, with each pocket having an elongated, substantially uniform width, open slot formed through the wall surface into the interior of the pocket and facing towards the opposing panel; ties for interconnecting and immobilizing the panels and the sheets during the pouring and curing of the concrete, with said ties each comprising a pair of elongated, thin, rigid sheet metal plates that are sized and shaped to snugly fit into a pair of aligned edge pockets; each plate being bent into a central, narrow, channelshaped, raised embossment extending out of the plane of the plate, with the embossment being sized and shaped to snugly fit within, and to be exposed through, the aligned slots of its respective aligned pockets; and a pair of thin, narrow sheet metal strips extending between each pair of plates, with the opposite ends of the strips being connected to their respective plates; wherein the tie members rigidly hold the panels in position prior to and during the pouring of the concrete, thereby forming a casting mold for the concrete, and mechanically fasten the panels and concrete core together.