FIELD: construction engineering.
SUBSTANCE: method for making cement of low water demand involves a combined grinding of Portland cement and an organic dewatering reagent to the specific surface 400-700 m2/kg and grinding thereof with a mineral carbonate-containing dust with calcium carbonate portion 60 wt % and more to said specific surface in the following ratio, wt %: Portland cement - 50-70, carbonate-containing dust - 30-50, the organic dewatering reagent - 0.3-3.0 over 100%. Cement of low water demand is made by the method described above.
EFFECT: additional reduction of water demand, higher density of the cement paste, durability of the cement stone, improved rheological characteristics.
2 cl, 2 tbl, 12 ex
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|
RU2085526C1 |
| METHOD OF MANUFACTURING LOW WATER-DEMAND CEMENT | 2001 |
|
RU2207995C2 |
| HYDRAULIC CEMENT | 1996 |
|
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|
RU2802732C2 |
