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混凝土管道相对钢管具有工程造价低的优点,从而在某些供排水系统中得以应用。土壤中的硫酸根离子对混凝土具有结晶性腐蚀作用,施工中要求对管沟土或管道进行处理,本文就硫酸根离子腐蚀性机理及对混凝土管道进行防护等问题进行了讨论。
Concrete pipe relative to the steel pipe has the advantage of low engineering costs, which in some of the water supply and drainage system to be applied. Sulfate ions in the soil have a crystalline corrosion effect on the concrete. Pipeline soil or pipelines are required to be treated during construction. In this paper, the corrosion mechanism of sulfate ions and the protection of concrete pipes are discussed.