| 摘要 |
PROBLEM TO BE SOLVED: To provide an admixture for mortar/concrete capable of developing high strength in a relatively early stage, exhibiting excellent cost reducing effect and giving excellent flowability for a short time in a wide environmental temperature range and a mortar/concrete composition. SOLUTION: The admixture for the high strength mortar/concrete contains 10-900 pts.wt. pozzolan type fine powder having 5-17 m<SP>2</SP>/g BET specific surface area per 100 pts.wt. anhydrous gypsum. The mortar/concrete composition contains the admixture. COPYRIGHT: (C)2006,JPO&NCIPI
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