| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To obtain a hydraulic composition which is excellent in execution property since it has excellent thixotropic property and which does not cause a crack and exhibits excellent surface hardness after it has been used for repairing. <P>SOLUTION: A fluidity improving agent is obtained by mixing 5-100 pts.wt. of a clay mineral powder and 100 pts.wt. of an inorganic powder free from the clay mineral powder and having a pH of 8-11. Further, the fluidity improving agent contains a resin powder in an amount of 0.001-1 pts.wt. to 100 pts.wt. of the inorganic powder in addition to the clay mineral powder and the inorganic powder. The subject method for producing the hydraulic composition includes a process for mixing the clay mineral powder and the inorganic powder, a process for mixing cement with the resulting mixture, and a process for mixing water with the resulting mixture in this order. <P>COPYRIGHT: (C)2006,JPO&NCIPI</p> |
