| 摘要 |
FIELD: building materials industry. ^ SUBSTANCE: the invention is pertaining to building materials industry, in particular, to preparation of the raw stocks mixtures for production fibrocement items. The raw stock mixtures for production fibrocement items include a cement binding, mineral fillers, cellulose fibers, an additive in amount of 0.1...0.5 % by dry substance from weight of solid ingredients of a raw stock mixture and water. In the capacity of an additive it contains a water dispersion of ethylhydroxyethyl cellulose, the sodium salt of a fatty acid and polyoxyethyleneglycol ether of aliphatic alcohol at their ratio (in mass) equal to 1:0.1:0.15. The technical effect - increase of solidity, including impact solidity and frost resistances of the fibrocement. ^ EFFECT: the invention ensures increased solidity, including impact solidity and frost resistances of the fibrocement. ^ 1 tbl, 1 ex |
