Futures

To fill up lime (or dry cement) solidification materials in the shape of column allover the ground uses water absorptivity, distensibility, the self-hardening, and improving the weak soil surely.
Also the column in self-hardenings and has strength, reduction of void ration in the neighboring ground and be effective in giving shear strength.
The expected Hardening column compressive strength : 0～10 (N/mm²)