Building block for construction and public works has square cavities into which a bonding material can be poured

摘要

The building block has concave (6) and convex (7) surfaces for fitting adjacent blocks together, and square through cavities (2) that can be filled with a poured bonding material and optional metal reinforcing elements. In addition, the upper edge of each cavity has a recess (4) to receive a matching projection (5) on the underside of a block placed on top of it.