ADMIXING AGENT FOR CEMENT, CEMENT COMPOSITION AND ADMIXING AGENT FOR SLIP FORM CONSTRUCTION METHOD

摘要

PROBLEM TO BE SOLVED: To provide a cement composition which does not cause sagging and bulge, maintains strength for a long period of time, and does not harden rapidly though it slumps down largely after 30 min. SOLUTION: The admixing agent for cement contains a recycled aggregate and a setting accelerator. The cement composition contains cement and the admixing agent for cement. The admixing agent for a slip form construction method contains the recycled aggregate and the setting accelerator.