METHOD TO MAKE POROUS WALL CERAMICS Russian patent published in 2011 - IPC C04B38/08 

FIELD: construction.

SUBSTANCE: method to make porous wall ceramics includes mixing of charge, containing brick clay, medium-, moderate- or low-plastic, a sodium-containing additive, buckwheat husks in amount of up to 20-56% of charge volume: for medium-plastic clay up to 55-56% of charge volume, for moderate-plastic clay - up to 40-43%, and for low-plastic one - up to 20-22%, plastic forming, drying and baking. The sodium-containing additive is perlite sand of M75 grade in amount of 5-10% from clay volume, and additionally an aluminium-containing additive is additionally added as a strengthening additive in amount of 0.5-3% over 100% of charge volume.

EFFECT: production of porous-hollow bricks, stones and large-format porous-hollow stones and blocks with higher density on the basis of medium-, moderate- and low-plastic brick clays.

3 cl, 4 ex, 8 tbl