| 摘要 |
PROBLEM TO BE SOLVED: To provide an admixture with improved expansion property, thermal hydration behavior on flowability and weathering resistance. and a composition using it. SOLUTION: The admixture obtained from a heat-treated base material of CaO, Al2O3, Fe2O3 and CaSO4 contains a free lime, calcium aluminoferrite, a haueyne and an anhydrous gypsum. The cement composition contains the cement and the admixture. |
