STRUCTURAL BLOCK Russian patent published in 1994 - IPC

FIELD: construction pieces production. SUBSTANCE: structural block has side walls 1 and 2, inner sides of which have bulges and pits. Walls 1 and 2 are connected between each other by partitions 3. Bulges and pits on inner sides of side walls 1 and 2 and partitions 3 form space lattice, from joints of which semispherical form pits 4 are going out with geometrical accuracy. Pits of maximum sizes are located on block butts surfaces 5, that are adjacent to other blocks butt surfaces. Pits 4 are connected to each other by canals 6. Space lattice has cubic or tetragonal or hexagonal structure. Space between joint of space lattice equals or exceeds or is less, than diameter of pit 4. EFFECT: structural blocks are used in construction. 3 cl, 10 dwg