迁移型阻锈剂对混凝土钢筋的保护作用

材料保护, 2010, 43(6): 68-71.

迁移型阻锈剂对混凝土钢筋的保护作用

曹琨 ^1, , 付玉彬 ^2, , 李伟华 ^3, , 李云菊 ^4, , 侯保荣 ^5,

1.中国海洋大学材料科学与工程研究院,山东,青岛,266100

2.中国海洋大学材料科学与工程研究院,山东,青岛,266100

3.中国科学院海洋研究所山东省腐蚀科学重点实验室,山东,青岛,266071

4.重庆大学化学与化工学院,重庆,400044

5.中国科学院海洋研究所山东省腐蚀科学重点实验室,山东,青岛,266071

基金项目: 海洋工程钢筋混凝土结构防腐蚀关键技术及示范工程(2007BAB27B03)

关键词：锈蚀 , 迁移型阻锈剂 , 腐蚀保护 , 混凝土 , 钢筋 , 氯离子 , 电化学方法

Protection of Reinforcing Steel by Migrating Rust Inhibitor

氯离子诱发的钢筋锈蚀是影响混凝土结构耐久性的主要因素之一.利用电化学和表面分析技术研究了有机类表面迁移型阻锈剂在混凝土腐蚀模拟液中对混凝土块及其中钢筋的保护作用.结果表明:新型阻锈剂的缓蚀效率超过80%;加入新型阻锈剂后,钢筋表面平整;涂刷在混凝土表面的复合阻锈剂,能够迁移到混凝土内部,通过物理、化学吸附,在钢筋表面形成一层吸附膜,阻碍了氯离子与钢筋表面的接触,使腐蚀反应速率降低,从而起到了保护钢筋的作用.

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材料期刊网

迁移型阻锈剂对混凝土钢筋的保护作用

Protection of Reinforcing Steel by Migrating Rust Inhibitor

参考文献