E - Fixed Constructions – 04 – B
Patent
E - Fixed Constructions
04
B
20/17
E04B 5/02 (2006.01) E04F 15/024 (2006.01)
Patent
CA 1058369
ABSTRACT OF THE DISCLOSURE A panel for elevated access floors is disclosed in which the panel is formed of reinforced expanded lightweight concrete. The reinforcing is provided by a grid including two arrays of parallel reinforcing rods which extend parallel to the associated panel edges and perpendicular to the rods of the other grid. A frame is provided by the grid around the two arrays. The grid is located adjacent to the lower surface of the body and divides the body into a plurality of square zones. Located in each zone, excepting the zones at the corners, is a pyramid-shaped cavity which extends from a base at the lower surface of the panel upwardly at about 45° to an apex spaced from the upper surface of the panel. The presence of the pyramid-shaped cavities does not materially reduce the strength of the panel when compared to a similar panel without such cavities, but reduces the weight of the panel and the material required to manufacture the panel.
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