| 摘要 |
PURPOSE:To obtain a ground outstanding in waterstop capability with readuced syrenesis, by injection into soil an aqueous mixture comprising sodium silicate glyoxal, water-soluble aluminum salt and water-soluble organic acid, inorganic acid and acidic inorganic salt. CONSTITUTION:Soil stabilization is accomplished by injecting into the soil an aqueous mixture comprising (A) sodium silicate, (B) glyoxal, (C) water-soluble aluminum salt (pref. aluminum sulfate, aluminum chloride, potassium alum or sodium alum), and (D) at least one kind of compound selected from (i) water- soluble organic acids (pref. malonic acid, glutaric acid, succinic acid, tartaric acid, citric acid, or acetic acid), (ii) water-soluble inorganic acids (pref. sulfuric acid, hydrochloric acid, phosphoric acid or boric acid) and (iii) water-soluble acidic inorganic salts (pref. sodium dihydrogenborate, sodium dihydrogenphosphate or sodium hydrogensulfate).
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