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海港工程结构物,特别是钢筋混凝土结构物,普遍遭受海洋环境的严重腐蚀破坏作用,实际使用年限远远低于设计要求,因而大大降低了港口工程效益,增加维护费用,直接和间接的损失触目惊心。如何调整钢筋混凝土的组成,从混凝土技术条件方面确保其均匀密实性,充分发挥并长久保持混凝土对钢筋的内在保护作用,以达到自身防腐的效果,成为当前海港工程材料研究方面的热门课题。
The seaport engineering structures, especially reinforced concrete structures, are generally subject to severe corrosion and damage to the marine environment. The actual service life is far below the design requirements, thus greatly reducing port engineering benefits, increasing maintenance costs, and direct and indirect losses. . How to adjust the composition of reinforced concrete, ensure its uniform density from the aspect of concrete technical conditions, give full play to and maintain the inherent protection of concrete against steel for a long time, in order to achieve the effect of self-preservation, has become a hot topic in the study of seaport engineering materials.