| abstract |
(57) [Abstract] [Problem] Without being affected by soil particles and organic matter in the soil, Provided is a rapid-hardening soil improving material which is excellent in rapid-hardening property, has both initial strength and long-term strength, and can be re-excavated. [MEANS FOR SOLVING PROBLEMS] The quick-hardening soil improving material of the present invention comprises Portland cement, alumina cement, anhydrous gypsum, It is composed of slaked lime and a hardening accelerator. At least one admixture of calcium carbonate, fly ash, and blast furnace slag powder can be further contained in the quick-hardening soil improvement material. In addition, these quick-setting soil improving materials may further contain a setting retarder. |