| 摘要 |
PURPOSE: Provided is a composition of inorganic concrete repairing agent, a double-liquid type agent, which penetrates concrete structures easily, prevents steel corrosion and concrete deterioration, and improves strength and waterproofness. CONSTITUTION: The double-liquid type concrete repairing agent comprises the components of: (A) inorganic composition penetrative into concrete containing 40-96wt.% of anhydrous alcohol such as ethanol, methanol or 2-propanol, and 4-60wt.% of one or two more of silane-based compounds selected from trimethyl methoxy silane, triethyl methoxy silane, dimethylvinyl methoxy silane, dimethylvinyl ethoxy silane, phenyl trimethoxy silane, etc.; (B) inorganic composition preventive of concrete deterioration containing 5-25wt.% of one more of alkali silicate selected from sodium silicate and potassium silicate, 0.05wt.% of surfactant based on non-ions, anionic fluoride or silicon, and the remains of water. The surface of concrete is treated by spraying the (A) composition, leaving for 5-240min, and spraying the (B) composition.
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