FIELD: construction; chemistry.
SUBSTANCE: invention relates to cementing composition containing: adhesive containing (a) 60-94 %, by weight, at least one pozzolanic material; (b) calcium sulfoaluminate (CSA) at least 0.5 wt%; (c) 1.2-11 % by weight expressed as SO3, at least one inorganic sulphate, selected from a group of sulphates consisting of hemihydrate of calcium sulphate, anhydrous calcium sulphate, calcium sulphate dihydrate, sodium sulphate and sodium calcium sulphate; and (d) the total content of sulphates of at least 3 wt% expressed as SO3, wherein the cementing composition contains not more than 3 % of natural limestone, cementing composition contains not more than 10 % of aluminous cement, and the content of the composition is calculated on dry basis without aggregate. Invention is developed in subclaims of formula of invention.
EFFECT: making high-quality environmentally safe centner cementing compositions.
25 cl, 22 ex, 10 tbl, 1 dwg
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