CEMENT COMPOSITION AND MANUFACTURING METHOD FOR CEMENT CURED BODY USING SAME

摘要

Provided is a cement composition having high fluidity (for example, having a 0-drop flow value of 200 mm or more) prior to curing, and exhibiting high compressive strength (for example, 320 N/mm2 or more) after curing. This cement composition includes cement, silica fume with a BET ratio surface area of 10-25 m2/g, inorganic powder with a 50% cumulative particle size of 0.8-5 µm, fine aggregate with a maximum particle size not exceeding 1.2 mm, a water-reducing agent, a defoaming agent, and water, wherein of the sum 100 vol% total of the cement, silica fume with a BET ratio surface area of 10-25 m2/g, and inorganic powder with a 50% cumulative particle size of 0.8-5 µm, the proportion of cement is 55-65 vol%, the proportion of the silica fume with a BET ratio surface area of 10-25 m2/g is 5-25 vol%, and the proportion of inorganic powder with a 50% cumulative particle size of 0.8-5 µm is 15-35 vol%.