| 摘要 |
PROBLEM TO BE SOLVED: To provide an agent solution which is used for stabilizing grounds, is short in a gelling time without deteriorating workability, well develops a strength just after gelled, and is excellent in the durability of the gel strength. SOLUTION: In the agent solution which is used for stabilizing grounds and comprises a combination of an alkali silicate solution (solution A) and a gelling agent solution (solution B), a solution containing colloidal silica having an average particle diameter of 5 to 10 nm and a SiO2/Na2O molar ratio of 20 to 70 is used as the solution A, and an aqueous solution containing potassium bicarbonate and sodium carbonate in a specific mixing ratio as a gelling agent component is used as the solution B. |
