应用线性极化、电化学阻抗谱和动电位极化等电化学方法研究了苯并三唑(BTA)对含有氯离子的模拟混凝土孔溶液中钢筋的阻锈作用,并通过微观测试方法对其阻锈机理进行探索.结果表明,含有0.25mol/L NaCl的模拟混凝土孔溶液(pH为12.5的饱和Ca(OH)2溶液)中加入等物质量(0.25mol/L)的BTA对钢筋有良好的阻锈作用.电化学测试证实了BTA对模拟混凝土孔溶液中钢筋的阻锈效果比常用的亚硝酸盐更明显,微观形貌观察发现BTA能与钢筋生成多层有机保护膜,保护钢筋免受氯离子侵蚀.以上结论均预示着BTA可能成为钢筋混凝土结构中具有很好应用前景的钢筋阻锈剂.
参考文献
| [1] | Page C L;Treadaway K W J .[J].Nature,1982,297(13):109-115. |
| [2] | T.A. Soeylev;M.G. Richardson .Corrosion inhibitors for steel in concrete: State-of-the-art report[J].Construction and Building Materials,2008(4):609-622. |
| [3] | Berke N S;Hicks M C .[J].Cement and Concrete Composites,2004,26(03):191-198. |
| [4] | Jamil H E;Shriri A;Boulif R et al.[J].Electrochimica Acta,2004,49(17-18):2753-2760. |
| [5] | Kosec T;Milosev I;Pihlar B .Benzotriazole as an inhibitor of brass corrosion in chloride solution[J].Applied Surface Science: A Journal Devoted to the Properties of Interfaces in Relation to the Synthesis and Behaviour of Materials,2007(22):8863-8873. |
| [6] | Nageh K. Allam;Ahmed Abdel Nazeer;Elsayed A. Ashour .A review of the effects of benzotriazole on the corrosion of copper and copper alloys in clean and polluted environments[J].Journal of Applied Electrochemistry,2009(7):961-969. |
| [7] | Mashal Sheban;Muna Abu-Dalo;Ayman Ababneh;Silvana Andreescu .Effect of benzotriazole derivatives on the corrosion of steel in simulated concrete pore solutions[J].Anti-Corrosion Methods and Materials,2007(3):135-147. |
| [8] | Mennucci M M;Banczek E P;Rodrigues P R P .[J].Cement and Concrete Composites,2009,31(06):418-424. |
| [9] | Etteyeb N;Dhouibi L;Sanchez M;Alonso C;Andrade C;Triki E .Electrochemical study of corrosion inhibition of steel reinforcement in alkaline solutions containing phosphates based components[J].Journal of Materials Science,2007(13):4721-4730. |
| [10] | M.A. Pech-Canul;P. Castro .Corrosion measurements of steel reinforcement in concrete exposed to a tropical marine atmosphere[J].Cement and Concrete Research,2002(3):491-498. |
| [11] | Vedalakshmi R;Palaniswamy N .[J].Magazine of Concrete Research,2010,62(03):177-189. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%