| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a grouting material which can ensure a desired gel time, exhibits high permeability also into grounds such as a sandy ground difficult to improve permeability with conventional grouting materials, and can modify grounds into strong grounds having high strength-expressing properties over periods from initial periods to middle and long periods. <P>SOLUTION: This grouting material comprising silica sol, cement clinker powder, slag powder, a plaster, an alkali metal sulfate, and a naphthalene sulfonate-based water-reducing agent is characterized in that≤90 vol.% of all particles excluding the silica sol are particles having diameters of≤10.5μm, and≤45 vol.% are particles having diameters of≤2.2μm. <P>COPYRIGHT: (C)2006,JPO&NCIPI</p> |
