FIELD: construction materials.
SUBSTANCE: raw mix for production of porous aggregate contains montmorillonite clay and a burnable additive. The burnable additive is rice husk pre-soaked for 10-60 minutes in a saturated aqueous solution of sodium bicarbonate or in a solution containing, wt.%: sodium bicarbonate 5-6, sodium chloride 5-6, water 88-90. At the same time, the raw mixture for the production of porous aggregate contains, wt.%: montmorillonite clay 97-99.5, rice husk (dry) 0.5-3.
EFFECT: strengthening of the walls of the filler pores.
1 cl, 2 tbl
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