BUILDING BLOCK Russian patent published in 2024 - IPC E04C1/41 

FIELD: construction materials.

SUBSTANCE: building block with vertical walls forming a closed perimeter, a core filling the cavity formed by the mentioned vertical walls from the plane of their lower end to the shrinkage plane located below the plane of their upper end, the top layer located in the space limited from below by said shrinkage plane, limited from above by said plane of the upper end of the vertical walls, and limited on the sides by the inner surface of said vertical walls, said vertical walls are made of the first material using the method of semi-dry vibrocompression, said first material is a moistened compressible mass containing hydraulic binder and fine-grained porous filler, said core is made of the second material by vibrating and pressing inside the workpiece containing said vertical walls, said second material is a coarse-pored concrete made by the method of encapsulating the coarse-grained porous filler with a liquid solution of a hydraulic binder, said upper layer is made of the third material containing the porous filler fines and hydraulic binder.

EFFECT: building block is proposed.

32 cl, 35 dwg, 3 tbl