| 摘要 |
building materials, particularly, preparation of cement-sand grouts of high mobility and suitable for handling by pumps. SUBSTANCE: grout contains, . %: portland cement (M5600-M600), 28.5-29.24; sand, 57.0-58.48; complex antifreeze additive LNO-1, 1.18-2.26; synthetic latex, 0.58-1.42; water, the balance. Grout possesses high mobility (settling cone of 10-12 cm), early strength at minus 10 C at least 10 kgf/sq.cm in 16 h. EFFECT: higher mobility, increased strength after early setting and waterproofness. 1 tbl
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