FIELD: chemistry.
SUBSTANCE: invention relates to industry of construction materials, in particular to production of concrete tiles for floors. Concrete mixture includes, wt.p.: Portland cement 1, marble crumps of fraction 2-8 mm 2-2.2, milled glass of fraction 0.1-0.3 mm 2-2.2, with water-cement ratio 0.45-0.5.
EFFECT: increase of strength.
1 tbl
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