摘要
本文针对目前我国南方海港浪溅区钢筋混凝土使用8～10年即出现钢筋锈蚀引起破坏的情况，提出控制水灰比≤0．4、保护层≥65mm，并在混凝土中使用NSF剂，使设计使用寿命达到50年的对策。
According to foe circumstances of port reinforced concrete structures lying in wavesplashed area suffered from serious damage due to reinforcement rust after only 8 -10years operation, a few necessary technical countermeasures, such as water cement ratio ofthe concrete should not be greater than 0. 40, protective cover of reinforcement should begreater than or equal to 65 mm, and NSF admixture should be used in the concrete, areherein recommended in order to ensure 50 years over service life of the port structures insouth China.
关键词
钢筋混凝土
防腐蚀
使用寿命
对策
港口水工建筑
marine environment
reinforced concrete
anti-corrosion
50 years service life
countermeasure
