| 摘要 |
<p>A cement clinker which can be sintered at 1, 300 to 1, 400°C which is lower than the conventional sintering temperature and develops excellent strength characteristics such as mortar compression strength. The cement clinker has a total content of C 3 A and C 4 AF calculated by Bogue's formulas of 22 mass% or more, a C 3 S content calculated by Bogue's formula of 60 mass% or more and an iron modulus (I.M.) of 1.3 or less, preferably 1.0 to 1.3. Since the total content of C 3 A and C 4 AF is 22 mass% or more, the cement clinker can be sintered at a low temperature and the reduction of strength when a cement composition is cured can be prevented by reducing the iron modulus of the cement clinker.</p> |
