FIELD: manufacture of building materials. SUBSTANCE: raw mill contains 75-85+ACU- of clay marl with 20.1-24.0+ACU- CaO, 5-15+ACU- of zeolite-containing clay, and 3- 10+ACU- of broken glass. Bricks have average density 1150-1600 kg/cu.m and water absorption 13.8-18.9. EFFECT: decreased average density of bricks and expanded resource of raw materials. 3 tbl
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