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ADMIXTURE FOR COUNTERMEASURE AGAINST SALT DAMAGE AND METHOD FOR COUNTERMEASURE AGAINST SALT DAMAGE OF REINFORCED CONCRETE
ADMIXTURE FOR COUNTERMEASURE AGAINST SALT DAMAGE AND METHOD FOR COUNTERMEASURE AGAINST SALT DAMAGE OF REINFORCED CONCRETE
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机译：钢筋混凝土盐害防治措施及抗盐害方法
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摘要
PROBLEM TO BE SOLVED: To provide an admixture for countermeasure against salt damage and a method for countermeasure against salt damage of reinforced concrete, allowing for prevention of crack occurring in reinforced concrete caused by salt damage of the reinforced concrete even when freezing preventive material containing chloride is sprayed onto the reinforced concrete.SOLUTION: In one embodiment, the admixture for countermeasure against salt damage is provided that is obtained by pulverizing a heat treated article obtained by heat treating a mixture of a CaO raw material, an AlOraw material and an FeOraw material and containing calcium aluminoferrite and free lime at a specific ratio. In another embodiment, the admixture for countermeasure against salt damage is provided that is obtained by pulverizing a heat treated article obtained by heat treating a mixture of a CaO raw material, an AlOraw material and an FeOraw material and further CaSOraw material and containing calcium aluminoferrite, free lime and anhydrous gypsum at a specific ratio. The method for countermeasure against salt damage of the reinforced concrete is provided that comprises blending the admixture for countermeasure against salt damage with concrete.SELECTED DRAWING: None
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