| 摘要 |
PROBLEM TO BE SOLVED: To obtain a backfill grout which excels in execution properties and strength developability, and a backfill grouting, more specifically, to provide a backfill grout and a backfill grouting which effectively inhibit the segregation in a cement slurry of the one-part of a two-part backfill grout without increasing the viscosity of the above slurry and, in addition, excel in strength developability as well when grouted. SOLUTION: The backfill grout comprises a liquid A of a slurry containing cement and water and a liquid B of a gelling material which are separately transported, then mixed, and grouted into a target portion for grouting such as a gap of ground in use, and the above liquid A containing scales recovered from geothermal hot water. |
