| 摘要 |
building materials industry. SUBSTANCE: method comprises heat treating original raw mix, adding calcium oxide thereto during heat treatment process. Calcium oxide is added to raw mix in amount of 2-20% based on weight thereof, 10-30% of general amount of calcium oxide being added at 1000-1300 C, the remaining calcium oxide being added at 1301-1500 C. Raw mix is composed of carbonate and clay components. Raw mix comprises correcting additives. EFFECT: intensified process of preparing portland cement clinker, increased C3S content and greater starting strength of cement. 3 cl
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