| 摘要 |
A polymer cement mortar composition for repairing a concrete structure is provided to inhibit corrosion of iron bars when a ferroconcrete structure is exposed to chlorides, and thus have high anticorrosive performances, and to be used for bridges, parking lots, coast structures. A polymer cement mortar composition for repairing a concrete structure includes 30-50wt% of cement, 40-60wt% of aggregate, 2-5wt% of metakaoline, 1-10wt% of an alkyl ammonium salt anticorrosive agent, 0.01-2wt% of calcium formate, 0.1-5wt% of vinylacetate-vinyl versatate polymer, and 0.1-2wt% of 2,2-dimethyl-1,3-propanediol. The composition further comprises 2-8wt% of calcium sulfoaluminate cement, 0.1-2wt% of a wetting agent, 0.1-0.3wt% of fiber, or a mixture thereof.
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