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各种水工建筑物大都设有闸门,通过闸门的启闭运行,方能调节水流。我省水工闸门自一九六六年以来逐步采用钢丝网水泥结构。为了延长钢丝网水泥闸门的使用寿命,保证其安全运行,自一九六八年以来就对钢丝网水泥闸门防锈、防渗保护层进行了室内试验研究和典型闸门的现场长期观测工作。本文简要介绍钢丝网水泥闸门中钢材锈蚀的机理和几种性能良好的保护层。其中自配环氧涂料保护层的使用年限可达十年以上,玻璃钢保护层的有效时间还会长些。这些保护层适用于较重要水工建筑物的钢丝网水泥闸门,也可以在其它钢丝网水泥结构、混
Most of the hydraulic structures with gates, through the gate opening and closing operation, before being able to regulate the water flow. The hydraulic gate of our province has gradually adopted the steel mesh cement structure since 1966. In order to prolong the service life of the steel mesh gate and ensure its safe operation, since 1968, the laboratory test and the long-term observation of the typical gate have been carried out on the rustproof and anti-seepage protective layer of the steel mesh gate. This article briefly introduces the corrosion mechanism of steel in the steel mesh and the several protective layers with good properties. Which self-protective layer of epoxy coating life of up to more than 10 years, FRP protective layer will be longer effective time. These protective layer is suitable for more important hydraulic structures steel mesh cement gate, also in other steel mesh cement structure, mixed