Patent ID: 7100336

Claim:
A low density, substantially planar carbon fiber reinforced concrete building panel having an upper end, a lower end, and a substantially longitudinal axis defined between said upper end and said lower end, comprising: an insulative core having an inner surface, an outer surface, an upper end, a lower end, and a plurality of perimeter edges, said foam core comprising at least one cut-out portion extending substantially between at least two of said plurality of perimeter edges; a first concrete material positioned adjacent said outer surface of said core; a first carbon fiber material positioned within said first concrete material; a second carbon fiber material positioned within said at least one cut-out portion of said core and extending through said core beyond said outer surface and in operable contact with said first carbon fiber material; second first reinforcing bar positioned proximate to said at least one carbon fiber material within said cut-out portion, and extending substantially between said upper end and said lower end of said core; and a second concrete material positioned within said cut-out portion of said core, and extending substantially from said upper end to a lower end of said core.