| 摘要 |
FIELD: binding agents. ^ SUBSTANCE: invention relates to compositions comprising water-resistant gypsum binding agents containing active mineral additives including calcium, aluminum oxides and silica. The gypsum binding agent based on calcium sulfate semihydrate with mineral additive as high-calcium ash and organic additive comprises granulated high-calcium fly ash as a mineral additive obtained after combustion of solid fuel and crushed to residue on sieve 008 in the amount 5%, not above, and plasticizing agent as an organic additive, and components are taken in the following ratio, wt.-%: calcium sulfate semihydrate, 73.9-90; plasticizing agent, 1.1-2.0, and indicated fly ash, the balance. Invention provides enhancing strength and water resistance of a binding agent, decreasing cost of composition and utilizing a definite part of solid exhaust in thermal power field. ^ EFFECT: improved and valuable properties of binding agent. ^ 1 tbl |
