METHOD FOR USING WASTE CONCRETE AS BLENDING MATERIAL IN CEMENT PRODUCTION AND CEMENT THUS OBTAINED

摘要

The present disclosure relates to a method for manufacturing cement clinker with waste concrete as a blending material, comprising the steps of: i) crushing waste concrete into granules with particle size less than or equal to 40 mm; ii) adding the granules obtained in step i) to a cement production plant and mixing the granules with clinker in said production plant, wherein said granules are activated by the residual heat of said clinker, and then mixed with said clinker to directly serve as a blending material, and thus said cement clinker is manufactured. The present disclosure further relates to a cement comprising the cement clinker manufactured by said method.