| 摘要 |
PROBLEM TO BE SOLVED: To provide a cement composition high in shrinkage reducing performance and initial strength development.SOLUTION: A cement composition has CS of 45-75 mass%, CS of 5-30 mass%, CA of 5-15 mass%, and CAF of 5-15 mass%, calculated by Bogue equations; a Li content of 0.01 mass%-0.1 mass% (excluding the Li content of 0.01 mass%); and a CS-M1 phase ratio of 0.4 or more. |
