CONCRETE PAVING BLOCK Russian patent published in 2000 - IPC

FIELD: paving blocks. SUBSTANCE: paving block, particularly, made of concrete for pavements has external contour, preferably, in the form of hexagon whose side surfaces in position of placement may at least in separate zones rest on one another. Each side surface of hexagonal stone has supporting profiling which runs vertically through at least one part of height of corresponding side surfaces and at least one profile tooth and one receiving hollow with cross-section corresponding to tooth profile. Novelty consists in fact that profile teeth in zone of stone side surface have length extending over one part of height of side surface and in placed position of pavement stones form at least one groove running over perimeter for reception of sealing material. EFFECT: improved stability of binding and sealing from harmful substances in zone of gaps between stones. 21 cl, 41 dwg