| 摘要 |
PURPOSE:To obtain the subject low pollution solidifying agent, composed of a specific composition, capable of solidifying hydrous soil in a short time, maintaining the stable solidified state for a long period even after the solidification, simultaneously pumpable at a low viscosity without dusting and having high safety. CONSTITUTION:The objective solidifying substance is composed of (A) an unsaturated carboxylic acid (co)polymer having <=1500 polymerization degree and/or its monovalent salt [preferably (meth)acrylic acid (co)polymers and/or Na or K salts thereof], (B) a water-soluble polymeric compound having 5 P viscosity of a 1% aqueous solution thereof at 25 deg.C [preferably a semisynthetic polymeric compound such as dextrin or a polycarboxylate such as Na polyacrylate) and (C) water. The respective components are preferably blended so as to provide (5:95) to (40:60) weight ratio of the components (A) to (C) and 3-20wt.% weight ratio of the component (B) based on the total weight of the components (A) and (C). Furthermore, the solidifying agent is preferably used in the form of an aqueous dispersion containing the components (A) to (C). |
