Abstract: A modular steel-framed construction mold apparatus comprised of a plurality of contiguous foundation, cavity wall and roof deck void spaces defined and formed by assemblies of interlocking encasement panels and connectors integrally attached to a structural steel grillage for accepting, containing, and shaping wet concrete fill, a method for forming, casting, and encasing monolithic composite concrete and steel buildings and structures in situ using said mold apparatus, and a permanently encased monolithic composite concrete and steel structure constructed by employing the foregoing modular mold apparatus and method of concrete construction. The structural steel grillage supports the encasement assemblies before and during the casting process, becoming fully embedded within the cast concrete, and provides tensile strength complementing the compressive strength of concrete fill.

Abstract: A modular steel-framed construction mold apparatus comprised of a plurality of contiguous foundation, cavity wall and roof deck void spaces defined and formed by assemblies of interlocking encasement panels and connectors integrally attached to a structural steel grillage for accepting, containing, and shaping wet concrete fill, a method for forming, casting, and encasing monolithic composite concrete and steel buildings and structures in situ using said mold apparatus, and a permanently encased monolithic composite concrete and steel structure constructed by employing the foregoing modular mold apparatus and method of concrete construction. The structural steel grillage supports the encasement assemblies before and during the casting process, becoming fully embedded within the cast concrete, and provides tensile strength complementing the compressive strength of concrete fill.

Abstract: A permanent mold apparatus for accepting concrete, and a method of casting buildings and large dimensioned structures monolithically in situ. The mold apparatus encases the monolithic concrete structure, insulates the walls of the cast in situ concrete structure, and provides false ceilings under floor and roof slabs. The concrete is cast continuously to fill the mold apparatus to produce a homogeneous, jointless, protectively encased concrete structure.