| 摘要 |
PROBLEM TO BE SOLVED: To provide a low heat generation grout composition retaining fillable high fluidity for several hours or more and excellent material separation resistance.SOLUTION: There is provided a high fluidity retention type low heat generation grout position containing a binding material containing Portland cement and pozzolan, an aggregate, a thickener, and a dispersant with the Portland cement of 40 to 65 pts.mass, silica fume and/or metakaolin of 3 to 15 pts.mass, and pozzolan other than silica fume and metakaolin of 20 to 50 pts.mass based on 100 pts.mass of the binding material, a polycarboxylic acid-based dispersant of 0.2 to 1.2 pts.mass and a melamine sulphonic acid-based dispersant of 1 to 6 pts.mass based on 100 pts.mass of the Portland cement.SELECTED DRAWING: None |
