| 摘要 |
PURPOSE:To obtain a grouting liquid for ground free from problem of soil pollution, etc., exhibiting high strength and durability by gelling and useful for the construction work, etc., of dam, tunnel, etc., by mixing a specific silica sol, etc. CONSTITUTION:The grouting liquid is produced by mixing (A) a silica sol having an SiO2/Na2O molar ratio of <=10 with (B) a silica sol having the above molar ratio of >=25 at a ratio to give a mixture having an SiO2/Na2O molar ratio of 12-22. |
