| abstract |
(57) [Problem] To provide a cement slurry having high fluidity and a relatively high curing rate and exhibiting ultra-high strength. SOLUTION: A cement slurry is composed of cement, pozzolanic fine powder, water, a water reducing agent, and a calcium salt of 0.02 to 0.6% by weight in terms of calcium oxide with respect to the cement (for example, calcium nitrite, calcium nitrate, formic acid). Calcium, calcium thiocyanate, calcium acetate) including. The cement slurry further has an average particle size of 3 to 20 μm Inorganic powder (eg, quartz powder) or aggregate having a particle size of 2 mm or less. |