Resumen
Prefabricated slab, composed of alignments of ceramic pieces, an armor composed of metal rods, and concrete, whose alignments of ceramic pieces form an upper step along one of its sides and a lower step along the side opposite, through which said alignments are attached and laterally coupled, characterized in that each alignment also forms a central longitudinal channel that houses the reinforcement and is filled with concrete, until top flush with the vault, defining with this a flat surface on the that a layer of non-crosslinked expanded polyethylene and closed cells is arranged. (Machine-translation by Google Translate, not legally binding)