| abstract |
An object of the present invention is to provide a cement composition capable of shortening the heating time and having high compressive strength and high bending strength, and a method for producing a hardened cementitious product using the cement composition. [Solution] The present invention provides a cement, silica fume having a BET specific surface area of 15 to 25 m 2 / g, an inorganic powder having a 50% cumulative particle size of 0.8 to 5 μm, a lime-based expanding material, and an aggregate having a maximum particle size of 1.2 mm or less. A, a cement composition comprising a metal fiber having a diameter of 0.01 to 1.0 mm and a length of 2 to 30 mm, a high-performance water reducing agent, an antifoaming agent, and water, comprising cement, silica fume, and inorganic powder. The cement composition has a cement content of 55 to 65% by volume, a silica fume content of 5 to 25% by volume, and an inorganic powder content of 15 to 35% by volume, with the total being 100% by volume. [Selection diagram] None |