Resumen
Flat ceramic vault (1) for the concrete block of the joist heads or another type of resistant ribs of the concrete floors, constituted by a flat central body of upper (2) and lower (3) parallel sides, with inner pockets (4) divided by tabs (5), and two wings (6) on the sides to rest on the wings or lower ribs of the joists, characterized in that it has a ridge of between 40 and 70 mm in the central body, and a chamfer (7), on the front side between the two fins, which reduces the edge of the vault progressively to the lower edge (8) of said front side, joining the upper face (2) of the central body to the lower one ( 3) and blinding the interior alveoli (4). (Machine-translation by Google Translate, not legally binding)