Abstract
Through experiment study of the contents of gas quenching steel slag f-CaO, mineral composition, grindability, the physical property and hydrate mechanics of steel slag cement made of gas quenching steel slag, as well as through analysis of gas quenching steel slag cement economic benefit and brief introduction to the granulation technology and its feature. The results show that: the ratio of f-CaO in the initial gas quenching steel slag which is smaller than 2mm is less than 2.7%, while the ratio f-CaO in the gas quenching steel slag after pulverization and smaller than 2mm is less than 1.3%; the main mineral content of it is C2S, C3S, calcium alumino ferrite, a small quantity of RO phase, f-CaO and MgO, etc. The grindability of gas quenching steel slag is better than heat-stew steel slag; And cement mixed with 20% of gas quenching steel slag can be used to produce portland cement (Grade 52.5), if the addition of gas quenching steel slag is 40%, which can produce P·S·A32.5 cement. Therefore, using gas quenching steel slag to produce cement will be of great economic benefit.
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