环氧树脂与缓蚀剂对钢筋混凝土构件防锈的组合效应研究

Combination Effective Research of Epoxy Resin and Corrosion Inhibitors on Antirust of Reinforced Steel Concrete Components

单独使用环氧树脂或缓蚀剂对钢筋混凝土结构中钢筋的防护效果有限。为取得更好的防护效果,本文尝试将缓蚀剂和环氧树脂组合使用,采用半电池电位法测定缓蚀剂和环氧树脂不同涂刷顺序对混凝土构件中钢筋的防护效果。试验结果表明,先涂一层缓蚀剂再覆盖一层环氧树脂对混凝土构件中的钢筋防护效果最佳,能有效降低钢筋的腐蚀电位,使构件中钢筋的腐蚀概率小于5%,因此,缓蚀剂与环氧树脂的组合使用能有效保护钢筋不被腐蚀。

The protection cannot show the intact effectiveness when epoxy resin or corrosion inhibitors is used alone on the reinforced steel concrete structure. In this paper, making a combination of epoxy resin and corrosion inhibitors is tried for getting a better protective effect, and half-cell potential method is used to determine the protective effect of epoxy and corrosion for reinforced concrete structure when they are applied in different order. The results show that brushing a layer of corrosion inhibitor then covering a layer of epoxy corrosion inhibitor has a better protection on reinforced steel concrete structure, which can effectively reduce the potential corrosion of the steel and makes the probability of corrosion of steel members less than 5%. Therefore, using the combination of corrosion inhibitor and epoxy resin can effectively protect steel from corrosion.