| abstract |
(57) [Summary] [Purpose] Improved fluidity and high granulated blast furnace slag content. Provided is a cement composition which promotes the reaction of an alkali stimulant (particularly 30% by mass or more). [Composition] Granulated blast furnace slag: 20-70%, 11CaO ・ 7Al 2 O 3 ・ CaF 2 composition: 1.2-10%, gypsum (as SO 3 content): 1.4- 20%, calcium hydroxide: 1.5-20%, setting modifier: 0.05-1.0%, balance: cement clinker or plain Portland cement. |