Owing to the reinforcement corrosion, freezing action and external mechanical attack, some reinforced concrete structures of seaport works in China have been suffering severe damages. A survey showed that more than 40 reinforcement seaport structures and tide barriers had been damaged so that they had only a service period of 7 - 25 years. Therefore,the repair task is very heavy. In the present paper, some principles and methods for repairing the reinforced concrete seaport structures are provided and some related technical requirements, materials as well as their preparation and properties are recommended.
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