Hollow plastic concreting-formwork panel - with reinforcing inlays injected at points of heavy material concentration

摘要

The form shuttering panel, of thermoplastic synthetic material, which is lighter than wood and less liable to adhere to the concrete pressed against it, is a one-piece extruded slab-shaped hollow shaped-section, with outer and inner panels interconnected by cross arms. The reinforcing inlays, which are of hard set thermoplastic material or metmetal, are injected in the area of corners of cross arms, or other areas of considerable material concentration. Chambers between the cross arms may be filled with foamed plastic. The reinforcing inlays may be in the form of pre-stressed wires. A high degree of rigidity and stability is attained, without excessive use of material, and production is simple.