| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a new method of manufacturing cement for which waste coolant liquid water is used for grinding aid in the finish grinding process of cement by making the waste coolant liquid water have a property not to cause decrease in strength of cement and delayed condensation with simple processing in order to promote efficient use of the waste coolant liquid water. <P>SOLUTION: In a method of manufacturing cement, waste coolant liquid water subjected to contact treatment with activated carbon is used as grinding aid in the finish grinding process of cement in which cement clinker, gypsum and the like are pulverized. <P>COPYRIGHT: (C)2013,JPO&INPIT |
