| 摘要 |
FIELD: manufacture of building materials. ^ SUBSTANCE: cement grout containing Portland cement (22.0-30.0%), ground ashes (10.0-22.0%), organic additive, and water additionally includes ground marly limestone (30.0-52.0%), wherein organic additive is kwass wort concentrate with 60-85% solids (0.05-3%), Portland cement is Portland cement 300, 400, or 500, ground ashes are fly grit having volume mass 2.2-2.6 g/cm3 - brown coal or coal combustion product, ground marly limestone contains 8-20% of clay admixtures, and raw material for preparing kwass wort concentrate consists of at least two components selected from group including rye flour, wheat flour, corn flour, rye malt, barley malt, wheat malt, potato, and starch-molasses production waste. Cement grout of invention in construction of massive concrete hydraulic structures on sea shelf. ^ EFFECT: reduced usage of Portland cement without loss in strength of cement stone, increased stability and uniformity of cement grout, and reduced water release. ^ 5 cl, 1 tbl, 2 ex |
