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将粉煤灰、石灰石和少量石膏配合制成生料,烧成以硅酸三钙和硫铝酸钙为主要矿物成分的早强熟料,再掺加40%左右的粉煤灰作为混合材料而磨成的水泥,标号能够达到325～425,早期强度较高。矿物形成过程的实验室研究和φ3.1/2.5×78米回转窑的试生产都证明,C_aO-SiO_2-Al_2O_3-Fe_2O_3系统中引入一定量的SO_3和少量的C_aF_2.硅酸三钙的形成温度可大幅度降低。同时,所形成的一定量的硫铝酸钙等矿物对早强是有利的。当石膏和粉煤灰的掺加量控制适当时,能制造出性能良好的水泥,可望成为一种应用广泛的新品种.
Combine fly ash, limestone and a small amount of gypsum to make raw meal, and fire the early strong clinker with tricalcium silicate and calcium sulfoaluminate as the main mineral components, and add about 40% of fly ash as the mixed material. The grinded cement can have a label of 325-425 and has a high early strength. The laboratory research of the mineral formation process and the trial production of φ3.1/2.5×78m rotary kiln have all proved that a certain amount of SO_3 and a small amount of C_aF_2 are formed in the C_aO-SiO_2-Al_2O_3-Fe_2O_3 system. Can be greatly reduced. At the same time, a certain amount of minerals such as calcium sulfoaluminate formed is advantageous for early strength. When the mixing amount of gypsum and fly ash is properly controlled, cement with good performance can be produced, which is expected to become a new breed with wide application.