BUILDING BRICK Russian patent published in 2000 - IPC

FIELD: construction engineering; construction of buildings and structures of high seismic activity. SUBSTANCE: slots made on bed surfaces of building brick made in the form of rectangular parallelepiped are contracting towards external bed surfaces of brick. Ratio of smaller size a to larger one d of slot should be 0,5 to 0,7. Slot depth h satisfies condition a≤h<d. Slot-to-slot distance c should equal at least greater size of slot c≥d. Slots may be of segmental, trapezoidal, or elliptical section. EFFECT: improved strength of brickwork concerning its axial tension along non-bonded joints. 4 cl, 4 dwg