| 摘要 |
<p>PURPOSE:To obtain a suspension grout having a high solidified strength and retaining the gelled condition for a long time, by adding and mixing water glass or sodium aluminate into slag as a chief component. CONSTITUTION:Water glass is mixed with slag so that the molar concentration ratio of SiO2 and Na2O becomes 2.5 or smaller to obtain a suspension grout. Cement and a dispersing agent is added to the grout. Fine slag having 8000cm<2>/g or higher in the specific surface area is used as the slag and cement having 8000cm<2>/g or higher in the specific surface area is used. Or sodium aluminate is mixed with slag so that the molar concentration ratio of Na2O to Al2O3 becomes 10 or more to obtain the grout.</p> |
