| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a cement composition capable of reducing an adiabatic temperature rise, while maintaining suitable strength development, and to provide a method for producing the same. <P>SOLUTION: The cement composition has a Be content of ≤2 mg/kg, a Co content of >10 mg/kg and ≤60 mg/kg, and a CaO content of 0.65-1.50 mass%. In the method for producing the cement composition including a step (A) for producing cement clinker by mixing and burning a raw material selected from a group comprising limestone, silica stone, coal ash, clay, blast furnace slag, soil generated by construction works, sewage sludge, copper slag and incineration ash, and a step (B) for crushing the cement clinker and gypsum, the cement composition is produced, which has the Be content of ≤2 mg/kg, the Co content of >10 mg/kg and ≤60 mg/kg, and the CaO content of 0.65-1.50 mass%. <P>COPYRIGHT: (C)2013,JPO&INPIT |
