BUILDING BLOCK Russian patent published in 2002 - IPC

FIELD: construction and facing of buildings and structures. SUBSTANCE: mechanical strength of building block is increased by installation of warmth-keeping layer between external face and internal concrete bearing layers. External face and internal layers are connected by X-shaped members to fasten them from opposite ends. Ends of X-shaped members are embedded in external face and internal layers. The remaining part of each X-shaped member embedded in masonry mortar is installed in corresponding X-shaped hollow of warmth-keeping layer. Material of warmth-keeping layer may be used in the form of polystyrene. After filling of X-shaped hollows of warmth-keeping layer with masonry mortar and hardening of said mortar, rigid connection is formed between external face and internal concrete layers at block ends, and permissible mechanical load on block materially rises. EFFECT: increased mechanical strength of building block. 3 cl, 3 dwg