| 摘要 |
PROBLEM TO BE SOLVED: To provide an injection method capable of producing an improved body having a small variation of compressive strength, and of uniformly improving the ground.SOLUTION: The injection method comprises: mixing a wet dispersion treated A material containing particulate silica whose average particle size measured by using a laser diffraction type particle size distribution meter without subjecting to ultrasonic dispersion treatment is 1.0 μm or less, dispersant, carboxy alkyl cellulose compounds and water, and a wet milling and dispersion treated B material containing a calcium compound whose average particle size measured by using a laser diffraction type particle size distribution meter without subjecting to ultrasonic dispersion treatment is 1.0 μm or less, dispersant and water; and injecting the mixture. |
