海湾钢筋混凝土桥梁结构的腐蚀及腐蚀控制研究

The corrosion and corrosion control research of the coastal reinforced concretestructure

处于海洋环境下的钢筋混凝土结构 ,由于结构周围环境中氯离子通过结构砼保护层渗透集聚于钢筋表面并对结构钢筋造成腐蚀损伤 ,并进而影响结构的安全性及耐久性 ,无法保证结构在后续使用期内的正常使用。本文基于结构腐蚀控制的思想 ,针对海湾钢筋混凝土桥梁结构 ,从两个方面阐述了在设计施工及后期使用过程中宜采用的腐蚀防护措施 ,以有效延长结构的实际使用寿命。

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.