2010 年 47 巻 10 号 p. 717-721
The cement plants can recycle various kinds and much amount of waste materials as a raw material or fuel through the characteristics in manufacturing cement. Many types of advanced recycling technologies of waste materials have been developed, such as fly ash washing system, ecocement, AK system and chlorine bypass system. The amount of waste materials and by-products which are utilized to produce 1 ton of cement has been increasing. This utilization significantly contributes to the saving of natural resources and fossil fuel.