초록 ▼

A three-layer insulated concrete panel includes as the middle layer an insulating slab having grooves which provide a form for casting of concrete supporting ribs integral with a layer of concrete cast over the grooved face. A layer of material, such as particle board, is bonded to the ungrooved fac

A three-layer insulated concrete panel includes as the middle layer an insulating slab having grooves which provide a form for casting of concrete supporting ribs integral with a layer of concrete cast over the grooved face. A layer of material, such as particle board, is bonded to the ungrooved face of the slab. In preparing the panel, the slab is placed on a flat surface with the particle board face down. Forms are then placed in spaced-apart relation to panel edges, and concrete is cast into the forms and grooves and over the grooved panel face. The insulating slab provides a form for casting of supporting ribs and is permanently retained in the panel, giving it a high insulating value.

대표청구항 ▼

A load-bearing building panel comprising: a rigid slab of insulating material having a first face, a second face, and a plurality of edges, said first face having defined therein a plurality of grooves extending substantially into said slab and forming channels for containing supporting ribs; and co

A load-bearing building panel comprising: a rigid slab of insulating material having a first face, a second face, and a plurality of edges, said first face having defined therein a plurality of grooves extending substantially into said slab and forming channels for containing supporting ribs; and concrete integrally cast into said grooves, over said first face, and outside of and in contact with said edges, forming supporting ribs within said grooves and integral therewith a layer of concrete covering said first face and edge frames outside said slab edges.