FIELD: machine building.
SUBSTANCE: ballast material contains cement, filler and water; as ballast it contains barium ore of big fractions with dimension of grains over 5 mm to 25 mm, of small fractions with dimension of grains over 0.16 mm to 5 mm, of super fine fractions with dimension of particles from 0.01 mcm to 160 mcm and additionally plasticiser-poly-carboacetyl at the following ratio of components in wt %: cement 12-17, water -10, poly-carbo-acetyl 0.2-0.3, barium ore - the rest at the following contents of fractions in ore wt %: big fraction over 5 mm to 25 mm 8-16, small fraction over 0.16 mm to 5 mm 70-84, super fine fraction over 0.01 mcm to 160 mcm 8-14.
EFFECT: increased density and strength.
6 cl, 1 ex, 2 tbl
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