| 摘要 |
FIELD: building industry, in particular special concrete and reinforced concrete constructions. ^ SUBSTANCE: claimed self-stressing cement contains (mass %): two-hydrous gypsum 12, aluminate self-stressing additive 13, and Portland cement clinker 75. Said aluminate self-stressing additive includes (mass %):SiO2 - 52.78; Al2O3 - 34.97; Fe2O3 - 3.80; CaO - 1.43; MgO - 0.20; SO3 - 0.15,oher doping improvers-6.31. ^ EFFECT: reduced material and energy consumption; increased level of cement self-stressing; utilization of waste product. ^ 2 tbl |
