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(11) | EP 1 120 505 A3 |
| (12) | EUROPEAN PATENT APPLICATION |
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| (54) | A building block suitable for the construction of dry-stacking high performance masonry walls |
| (57) A pre-cast modular block 1 for construction of walls by dry-stacking comprises two
outer walls 2 and two inner walls 3. Each outer wall 2 is connected to its adjacent
inner wall 3 by cross-walls 4 defining voids 5. The inner walls 3 are connected by
cross-walls 6 which define a void 7 and open-ended formations 8. V-shaped grooves
10 and 11 are provided in the cross-walls 5 and 6 respectively. The upper surfaces
12 of the outer walls 2 are below the level of the upper surfaces 13 and are provided
with bosses 14 which at their tops are level with surfaces 13. Vertical rebates 17 are provided in the outer walls 2 at each side edge thereof. The bosses 14 provide for stability during dry-stacking of the bosses and serve to define horizontal bed joints, vertical joints being defined by the rebate 17. Horizontal and vertical bands of reinforced concrete may be provided in the wall for stability thereof. |