ribbon tape material 30 the carbon fiber strands 10 are interconnected to the interior carbon fiber grid 6 positioned substantially adjacent to the interior surface of the insulative core and with the exterior carbon fiber grid 8 positioned substantially adjacent the exterior surface of the insulative core 4 one example of a carbon fiber grid ribbon 30 which may be used in the present invention is the u201c mec grid u2122 u201d carbon fiber material which is manufactured by hexcel clark schwebel the interior and exterior carbon grid tape is comprised generally of looped or crossed weft and warped strands that run substantially perpendicular to each other and are machine placed on several main tape u201c stabilizing strands u201d that run parallel to the running rolling direction of the tape the carbon fiber tape is then used in a totally separate process by casting it transversely through the insulating core 4 to produce an insulated structural core panel that links together compositively the interior concrete layer 14 and exterior concrete layer 16 of the composite wall panel 2 with regard to the concrete utilized in various embodiments of the present application the interior wall may be comprised of a low density concrete such as cret o lite u2122 which is manufactured by advanced materials company of hamburg n y this is an air dried cellular concrete which is nailable drillable screwable sawable and very fire resistant in a preferred embodiment the exterior concrete layer 16 is comprised of a dense concrete material to resist moisture penetration and in one embodiment is created using visco crete u2122 or equal product which is a chemical that enables the high slumped short pot life liquification of concrete to enable the concrete to be placed in narrow wall.