| 摘要 |
PURPOSE:To obtain the concrete showing chemical resistance with high strength and high durability without adding a large quntity of admixtures, being free from problems of cost and coagulation property, etc., without necessitating new silo at the time of production of the concrete and enhanced in the activity of a pozzolanic reaction. CONSTITUTION:The cement admixture consists essentially of a reactive silicate compound and/or a silane compound. The hydraulic composition containing the cement admixture is imparted with superior pozzolanic reaction action by at least one kind cement admixture selected from the group consisting of the reactive silicate compound and/or the silane compound, and the obtained concrete has performance such as high strength and high durability. |
