Abstract: A road element is formed of a one-piece cage that includes two layers of orthogonally arranged rebars which are welded together. The layers are connected by connecting rebars that are welded to the rebars of the layers at the intersections and the one-piece cage is encased in a flexible material formed of crumb rubber, urethane, and fibers from land vehicle tires. Plates can be included with the one-piece cage to further enhance the strength of the element.

Abstract: A method of producing a cambered composite joist and concrete panel assembly, and the assembly so produced, comprising the steps of providing a negatively cambered casting mold, positioning at least one negatively cambered composite joist with a bottom chord joined to a web member having non-attached top apices into the mold such that the top apices rest within the mold, pouring concrete into the mold and allowing it to harden to form a cambered concrete panel with the joists extending from the panel, removing the assembly from the mold and inverting it such that the precast camber in the panel flattens out from the effects of the weight of the panel and creep during final curing.