Lightweight slab or similar structural element which can receive equipment that is accessible and that can extend through the slab

A lightweight slab that can receive facilities which will be extended through the slab comprising:

• two main parallel reticular reinforcements (5, 6) extending parallel to one another;
• secondary reinforcements extending between the two main parallel reticular reinforcements and arranged to form a double diagonal, a single diagonal or a perpendicular relationship with the main reinforcements to form a series of structural nodes;
• all of the reinforcements embedded in a volume of concrete filling which covers and protects such reinforcements according to structural concrete regulations, the volume of concrete filling defined during its production by a formwork or mould to create a hollow main volume (2) of the lightweight slab the formwork or mould formed by hollow prismatic or truncated-pyramid-shaped volumes with smooth edges and vertices that improve structural strength and facilitate the extraction thereof when it is necessary to retrieve the moulds;
• and
• characterized in that the concrete filling defines open holes (4, 3) adjacent the secondary and main reinforcements to form a succession of nodes connected to one another to form a network of open channels of the lightweight slab which extend in all directions through the hollow main volume (2) and the open holes (3, 4) and that are configured to be accessed from a lower level, upper level (4), and sides (3) for receiving any type of facilities such as electricity, telecommunications, plumbing, air conditioning or ventilation equipment.