| 摘要 |
PROBLEM TO BE SOLVED: To provide a soil improvement method without the need for new soil and a problem of the disposal of waste soil and capable of improving the global environment. SOLUTION: This soil improvement method comprises mixing a soil conditioner obtained by suspending powdered or particulate charcoal in water into soil. Further, the soil improvement method comprises mixing a soil conditioner of charcoal having an average particle diameter of <=1.0 mm to which at least one of calcined gypsum, bittern, and glass crushed particles further has been added to soil. |
