| 摘要 |
FIELD: building materials, in particular fire-retardant materials. ^ SUBSTANCE: claimed composition contains (mass %): cement 48.5-63.0; expanded vermiculite as light filler 5.0-12.0; cellulose ester (e.g., carboxymethylcellulose) 0.5-1.4; calcium chloride as curing promoter 2.1-3.4; mica (e.g., mica-phlogopite) 6.0-15.0; additionally calcium hydroxide 1.5-7.0; aluminum powder 0.05-0.15; and balance: chalk. Composition of present invention is useful in fire-retardant internal and external coats for concrete and reinforced-concrete construction, preferably transport tunnels. ^ EFFECT: composition with improved fire-retardant efficiency, absence of shrinking deformations, increased corrosion resistance, and high heat insulating properties. ^ 1 ex |
