The corrosion and corrosion control research of the coastal reinforced concretestructure

The reinforced concrete structures under the coastal environment, as the chloride penetrate and congregate on the reinforcement surfaces by the concrete covers, the structure reinforcements will be damaged and result in the weakening of the structures reliability, so it will not ensure the use of the concrete structures in the residual services time. Based on the concept of the structure corrosion control ,corrosion protect measures that are suitablyadopted in design construction and the residual service time of the coastal reinforced concrete bridges are stated in two aspects ,which lead to effectively and significantly extend the service life of the structures.