| 摘要 |
PROBLEM TO BE SOLVED: To provide a method of applying a grout composition capable of forming a hardened material which combines excellent fluidity and fluidity retaining properties little affected by the temperature and in-water inseparability in good balance and also has excellent pumpability and filling properties to target parts and excellent compression strength in water and air.SOLUTION: A method of applying a grout composition includes a process of producing a grout slurry by a grout slurry generating apparatus and a process of applying the grout slurry at an application site. The grout composition contains Portland cement, a fine aggregate, a thickener and a fluidizing agent. The fluidizing agent includes two kinds of a polycarboxylic acid type fluidizing agent, or fluidizing agent (a), of lengths of side chains greater than 50 nm and a polycarboxylic acid type fluidizing agent, or fluidizing agent (b), of lengths of side chains of ≤50 nm, in a ratio of the content of the fluidizing agent (a) to that of the fluidizing agent (b) of 10:90 to 90:10, with respect to the total amount, 100 mass%, of the fluidizing agents. |
