Utilization of Waste and Industrial Byproducts as a Raw Material in the Manufacture of Portland Cement

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J. Korean Ceram. Soc. > Volume 15(3); 1978 > Article

Journal of the Korean Ceramic Society 1978;15(3): 149.

시멘트 원료로서 폐.부산자원의 활용

최상흘, 박용완, 지정식, 오희갑

한양대학교 무기재료공학과

Utilization of Waste and Industrial Byproducts as a Raw Material in the Manufacture of Portland Cement

ABSTRACT

The utilization of waste and industrial byproduct materials, such as blast furnace slag, shales, poor coal and anthracite briquet ash, were investigated as a source of calcareous or argillaceous material in the manufacture of Portland cement. As a slag is similar to cement in chemical compoment and contains about 40∼50% of CaO, it's utilization in cement manufacture should be suitable. The burnability was increased and the heat of clinker formation was decreased by using slag. Some consideration should betaken in the use of large quantity because of sticking in suspension preheater kiln. Suitable quantities of colliery shales and poor coal should be useable in cement manufacture as a argillaceous materials and also its combustible materials should be utilized in cement manufacture. Anthracite briquet ash is also usable as a argillaceous source and it gives good burnability.