Patent ID: 8424263

Claim:
A lightweight floor slab comprising a meshy shuttering having a length, a to surface and a bottom surface, a plurality of battens extending from the top surface below the bottom surface of the meshy shuttering providing grooves in the top surface and protrusions in the bottom surface, each protrusion extending below the bottom surface to a protrusion bottom, the protrusions providing a plurality of cavities adjacent the bottom surface between the protrusions, the battens each extending substantially the length of the shuttering, the battens substantially continuous and parallel to one another, a plurality of mesh faces respectively located on the top surface between the battens, each mesh face having a plurality of holes therein, a plurality of bottom cement mortar layers each adhered to the bottom surface of the shuttering between the battens in the cavities of the bottom surface, each layer flush with the protrusion bottoms; a metal mesh placed on the mesh faces of the meshy shuttering; and a continuous top cement mortar layer adhered to the mesh faces and the metal mesh and extending into the grooves.