钢筋锈蚀已使得大量混凝土结构出现劣化。除了使用高效减水剂和添加掺和物生产高性能混凝土以外 ,还有一些技术 ,包括阻锈剂、环氧涂层钢筋、阴极保护和混凝土表面的保护性涂层等 ,现分别叙述如下 :阻锈剂———掺有 2 %亚硝酸钙将氯离子浓度的阈值提高到足以防止钢筋锈蚀的水 Steel corrosion has caused a large number of concrete structures to deteriorate. In addition to the use of superplasticizers and admixtures for the production of high-performance concrete, there are several other technologies, including rust inhibitors, epoxy-coated rebar, cathodic protection and protective coatings on concrete surfaces, as follows: Rust Inhibitors - Adulterated with 2% calcium nitrite to raise the chloride ion concentration threshold to a level sufficient to prevent steel corrosion