FIELD: construction.
SUBSTANCE: furnace charge for porous filler production contains, wt %: montmorillonite clay 95.5-97.0, coal 1.0-1.5 ground until passing through the mesh No. 0.63, kaolin 1.0-1.5 sifted through the mesh No. 5, impregnated with saturated water solution of solution sodium borate and wood sawdust 1.0-1.5 dried up to humidity no more than 6%.
EFFECT: increase of strength of the porous filler produced from furnace charge.
1 tbl
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