FIELD: manufacture of building materials. SUBSTANCE: monolithic bulky concrete blocks having a bottom and four enclosing walls are made with the aid of a folded-up concrete form bar with the stiff mirror of the roof, with four angular posts or similar angular members, with at least four wall concrete form shields and also with movable exterior concrete form walls. Console planks 24 protruding inwards are laid monolithically concrete on enclosing walls 14 of the bulky block in the areas lying opposite to wall concrete form shields 60. When the concrete form bar is folded, first the wall concrete, form shields are drawn in by the size n. Then angular posts 58 are drawn in by the size f. In this case the size n is chosen larger than the size t of the console plank projection. The size f is smaller than the difference between the size n and the size t of the projection. EFFECT: facilitated manufacture. 13 cl, 30 dwg
