| 摘要 |
PURPOSE:The titled acidic reactant solution, obtained by adding an dissolving sodium sulfate in an aqueous solution of sulfuric acid, capable of holding a liquid state at ordinary temperature and used for a water glass based chemical feeding method for water stopping of weak ground or strengthening ground. CONSTITUTION:An acidic reactant solution, obtained by adding and dissolving (A) 120-480g (based an 1l acidic reactant solution) sodium sulfate in (B) an aqueous solution containing <=106g sulfuric acid and capable of holding an uniform liquid state without emitting offensive smell and loss in time required for dissolving.
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