CONSTRUCTION BLOCK Russian patent published in 1997 - IPC

FIELD: civil engineering. SUBSTANCE: construction block is used in external walling of heated buildings and has side walls interconnected by partitions which create spaces for concreting. Block is also provided with fixing ribs, protrusions and slots. Walls of block have horizontal and end face protrusions. Horizontal protrusions are of 0.02-0.15 of wall height and they are arranged at incline of 10-60^o as to block center. Height of end face protrusions is equal to wall height, and their width is equal to width of horizontal protrusions and amounts to 0.075-0.4 of block width. Height of partitions is 0.5-1.0 of wall height and they are located at distance from end faces equal to 0.02-0.25 of block length. End face protrusions are provided with ridges extending above walls and having height equal to 0.02-0.1 of wall height. Ridges can be variously located on end faces and be of different configuration and dimensions. Horizontal protrusions have slots corresponding to location, configuration and dimensions of ridges. End face protrusions through all their height can have slots at one side of block, and ridges or slots at other side of block. EFFECT: high efficiency. 2 cl, 5 dwg