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一、前言由于种种原因,钢筋混凝土结构物不断发生侵蚀破坏,特别是港工钢筋混凝土建筑物,在遭受海水侵蚀(尤其是氯离子侵蚀)后,钢筋产生腐蚀破坏的现象非常严重。海水成份比较复杂,对钢筋混凝土结构物来说,主要的侵蚀成份为硫酸盐和氯盐,而氯盐的危害性更为突出。一旦有一定量的氯离子渗入到混凝土内部的钢筋表面,就会
I. INTRODUCTION Due to various reasons, erosion and destruction of reinforced concrete structures continue to occur. Especially for reinforced concrete structures in Hong Kong, the phenomenon of corrosion damage to steel bars is very serious after being subjected to seawater erosion (especially chloride ion erosion). The composition of seawater is more complicated. For reinforced concrete structures, the main erosion components are sulfate and chloride, while the harm of chloride is more prominent. Once a certain amount of chloride ions penetrate the surface of the steel inside the concrete, it will be