| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a cement-based grout material capable of acquiring easily at a filling time, high flowability which is sufficiently suitable for filling, for example, a hardly-fillable structure spot in a construction-engineering work. <P>SOLUTION: This grout material contains: 100 pts.mass of portland cement, 20-200 pts.mass of calcium aluminate; 0.05-2 pts.mass of a setting accelerator and 0.02-2 pts.mass of a setting retarder based on 100 pts.mass of a total content of anhydrous gypsum, the calcium aluminate and the portland cement; and water, wherein the content mass ratio (CS/CA) of the anhydrous gypsum (CS) to the calcium aluminate (CA) is 0.1-0.6. The grout material is heated to be higher than an environmental temperature at the construction time by 10-50°C. <P>COPYRIGHT: (C)2012,JPO&INPIT |
