| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an injection method capable of largely enhancing permeability to the ground and a base rock, when using a cement system injection material for the purpose of water cutoff and ground strengthening.SOLUTION: The injection method is provided for improving the permeability by 15% or more by a natural flow-down infiltration test, by heating aqueous slurry including cement fine powder and blast furnace slag fine powder and also including a cement-based hydraulic composition having an average particle diameter of 5μm or less and a dispersant.</p> |
