| 摘要 |
PURPOSE:To improve grouting efficiency by incorporating an aq. colloidal silica, a cement, an alumino-silicate and if necessary, a solidification inhibitor. CONSTITUTION:An aq. colloidal silica (a) with an average particle diameter of 3-100nm and an alkali content of 5-500 in terms of a molar ratio of SiO2/M2O, a cement (b) wherein 90% or more of the particles consist of particles with a particle diameter of 0.1-10mum, an aluminosilicate (c) which has an average particle diameter of 0.1-10mum, wherein substantially 90% or more of the particle diameters fall within this range and which is pref. a synthetic zeolite selected from zeolite A, zeolite P and zeolite X and a solidification inhibitor (a) are compounded at a wt. ratio of the ingredient (a) (in terms of SiO2): the ingredient (b): the ingredient (c): the ingredient (d) of 1:1-50:0.1-10.0:0.2. |
