| abstract |
Provided is a cavity filler that can form a steep barrier in a cavity, can save construction costs and material costs, and can shorten a construction period. Cavity filler is injected from the upper end 12 to the lower end 13 of the cavity 11, and immediately hardens in the cavity 11 to connect the upper and lower ends 12, 13 of the cavity 11 with a gradient barrier of 20% or more. Form. This filler is a mixture obtained by mixing the first component obtained by mixing the soil material 15, the cement-based solidifying material 16 and water 17 with the second component obtained by mixing the powder quick-setting agent 18 and water 19. [Selection] Figure 1 |