| 摘要 |
FIELD: construction. ^ SUBSTANCE: invention is related to compositions of clinker-free binder based in blast furnace and Martin slags, and may be used in production of concrete and reinforced concrete products and construction mortars. Binder produced by grinding up to 450-470 m2/kg of mixture that contains the following components, wt %: pit sand of the following composition, wt %: SiO2 34.1-39.9; Al2O3+TiO2 9.8-11.0; FeO+Fe2O3 12.8-26.1; CaO 11.3-13.7; MgO 4.2-5.7; MnO 0.3-0.55; P2O5 0.5-0.6; SO3 1.7-3.2; Na2O+K2O 1.3-3.2; loss in burning 8.5-15, containing 15-20% minerals of garnets, 5-8; calcium sulfate dihydrate 4-9; blast furnace granulated slag 30-35; Martin stale slag with fraction of at least 15 mm - the rest. ^ EFFECT: improved binder quality. ^ 3 tbl |
