海洋环境中硅烷对混凝土结构保护的评估

Evaluation of Silane Protection for Concrete Structures in Marine Environment

通过调研实体工程中硅烷的保护效果,并结合实海暴露试验和室内加速腐蚀试验全面分析硅烷对混凝土结构的保护效果;建立计算模型,定量评估硅烷防腐蚀措施对混凝土结构使用寿命的延长时间。结果表明:硅烷能够有效地隔绝环境中氯离子的侵入,对混凝土结构起到很好的保护作用;外界环境不会对硅烷的保护效果产生显著影响;以青岛暴露试验站暴露5 a的数据计算得到硅烷对混凝土结构使用寿命的延长时间约为16 a。

The protective effect of silane on concrete structure was comprehensively analyzed through investigating the protective effect of silane in a real project in combination with real sea exposure test and indoor accelerated corrosion test.A calculation model was established to quantitatively evaluate the extension time of service life of concrete structures by anti-corrosion measure of silane.The results show that silane effectively insulated the invasion of chlorine ions from environment and provided a good protection for concrete structures.The external environment could not significantly affect the protective effect of silane.Based on the data from Qingdao exposure test station during 5 years,it was calculated that the extension of concrete structure service life because of silane protection was about 16 years.