Volume 6 Issue 3
Jul.  2013
Turn off MathJax
Article Contents
Article Navigation >  Water Science and Engineering  > 2013  >  6(3): 354-363
Jin-xia XU, Lin-hua JIANG, Wei-lun WANG, Li TANG, Li CUI. 2013: Effectiveness of inhibitors in increasing chloride threshold value for steel corrosion. Water Science and Engineering, 6(3): 354-363. doi: 10.3882/j.issn.1674-2370.2013.03.011
Citation: Jin-xia XU, Lin-hua JIANG, Wei-lun WANG, Li TANG, Li CUI. 2013: Effectiveness of inhibitors in increasing chloride threshold value for steel corrosion. Water Science and Engineering, 6(3): 354-363. doi: 10.3882/j.issn.1674-2370.2013.03.011
shu

Effectiveness of inhibitors in increasing chloride threshold value for steel corrosion

doi: 10.3882/j.issn.1674-2370.2013.03.011
  • 1.

    College of Mechanics and Materials, Hohai University, Nanjing 210098, P. R. China

  • 2.

    Shenzhen Durability Center for Civil Engineering, Shenzhen University, Shenzhen 518060, P. R. China

Funds:  This work was supported by the National Natural Science Foundation of China (Grants No. 51278168 and 51278167), the China Postdoctoral Science Foundation Funded Project (Grant No. 20100481082), the China Postdoctoral Science Foundation Special Funded Project (Grant No. 201104544), the Jiangsu Planned Projects for Postdoctoral Research Funds (Grant No. 1002019B), the Qing Lan Project, and the Opening Project of Shenzhen Durability Center for Civil Engineering, Shenzhen University (Grant No. SZDCCE11-03).
More Information
  • Corresponding author: Jin-xia XU
  • Received Date: 2011-10-10
  • Rev Recd Date: 2012-06-13
    Abstract
  • This investigation was aimed at evaluating the effectiveness of corrosion inhibitors in increasing the chloride threshold value for steel corrosion. Three types of corrosion inhibitors, calcium nitrite (Ca(NO2)2), zinc oxide (ZnO), and N,N'-dimethylaminoethanol (DMEA), which respectively represented the anodic inhibitor, cathodic inhibitor, and mixed inhibitor, were chosen. The experiment was carried out in a saturated calcium hydroxide (Ca(OH)2) solution to simulate the electrolytic environment of concrete. The inhibitors were initially mixed at different levels, and then chloride ions were gradually added into the solution in several steps. The open-circuit potential (Ecorr) and corrosion current density (Icorr) determined by electrochemical impedance spectra (EIS) were used to identify the initiation of active corrosion, thereby determining the chloride threshold value. It was found that although all the inhibitors were effective in decreasing the corrosion rate of steel reinforcement, they had a marginal effect on increasing the chloride threshold value.

     

    • FullText(HTML)
  • loading
    • References(31)
  • Andrade, C., and Alonso, C. 1996. Corrosion rate monitoring in the laboratory and on-site. Construction and Building Materials, 10(5), 315-328.
    [doi: 10.1016/0950-0618(95)00044-5]
    Ann, K. Y., and Song, H. W. 2007. Chloride threshold level for corrosion of steel in concrete. Corrosion Science, 49(11), 4113-4133.
    [doi: 10.1016/j.corsci.2007.05.007]
    Brundle, C. R., Grunze, M., Mader, U., and Blank, N. 1996. Detection and characterization of dimethylethanolamine-based corrosion inhibitors at steel surfaces, I: The use of XPS and ToF-SIMS. Surface and Interface Analysis, 24(9), 549-563.
    [doi:10.1002/(SICI)1096-9918(19960916)24:9< 549::AID-SIA164>3.0.CO;2-Z]
    De Rincón, O. T., Pérez, O., Paredes, E., Caldera, Y., Urdaneta, C., and Sandoval, I. 2002. Long-term performance of ZnO as a rebar corrosion inhibitor. Cement and Concrete Composites, 24(1), 79-87.
    [doi: 10.1016/S0958-9465(01)00029-4]
    Frederiksen, J. M. 2009. On the need for more precise threshold values for chloride initiated corrosion. Materials and Corrosion, 60(8), 597-601.
    [doi: 10.1002/maco.200905273]
    Mammoliti, L., Hansson, C. M., and Hope, B. B. 1999. Corrosion inhibitors in concrete, Part II: Effect on chloride threshold values for corrosion of steel in synthetic pore solutions. Cement and Concrete Research, 29(10), 1583-1589.
    [doi: 10.1016/S0008-8846(99)00137-4]
    Ormellese, M., Bolzoni, F., Lazzari, L., and Pedeferri, P. 2008. Effect of corrosion inhibitors on the initiation of chloride-induced corrosion on reinforced concrete structures. Materials and Corrosion, 59(2), 98-106.
    [doi: 10.1002/maco.200804155]
    Song, H. W., Saraswathy, V., Muralidharan, S., and Thangavel, K. 2008. Tolerance limit of chloride for steel in blended cement mortar using the cyclic polarisation technique. Journal of Applied Electrochemistry, 38(4), 445-450.
    [doi: 10.1007/s10800-007-9457-3]
    Soylev, T. A., and Richardson, M. G. 2008. Corrosion inhibitors for steel in concrete: State-of-the-art report. Construction and Building Materials, 22(4), 609-622.
    [doi:10.1016/j.conbuildmat. 2006.10.013]
    Trejo, D., and Pillai, R. G. 2003. Accelerated chloride threshold testing, Part I: ASTM A615 and A706 reinforcement. ACI Materials Journal, 100(6), 519-527.
    Valcarce, M. B., and Vazquez, M. 2008. Carbon steel passivity examined in alkaline solutions: The effect of chloride and nitrite ions. Electrochimica Acta, 53(15), 5007-5015.
    [doi:10.1016/ j.electacta.2008.01.091]
    Valcarce, M. B., and Vazquez, M. 2009. Carbon steel passivity examined in solutions with a low degree of carbonation: The effect of chloride and nitrite ions. Materials Chemistry and Physics, 115(1), 313-321.
    [doi: 10.1016/j.matchemphys.2008.12.007]
    Wang, L. C., and Ueda, T. 2009. Meso-scale modeling of chloride diffusion in concrete with consideration of effects of time and temperature. Water Science and Engineering, 2(3), 58-70.
    [doi:10.3882/j.issn.1674- 2370.2009.03.006]
    Welle, A., Liao, J. D., Kaiser, K., Grunze, M., Mäder, U., and Blank, N. 1997. Interactions of N, N'-dimethylaminoethanol with steel surfaces in alkaline and chlorine containing solutions. Applied Surface Science, 119(3-4), 185-198.
    [doi: 10.1016/S0169-4332(97)00216-X]
    Xu, J. X., Jiang, L. H., and Wang, J. X. 2009a. Influence of detection methods on chloride threshold value for the corrosion of steel reinforcement. Construction and Building Materials, 23(5), 1902-1908.
    [doi: 10.1016/j.conbuildmat.2008.09.011]
    Xu, J. X., Jiang, L. H., and Wang, Q. 2009b. Finite element model of reinforcement corrosion in concrete. Water Science and Engineering, 2(2), 71-78.
    [doi:10.3882/j.issn.1674-2370. 2009.02.008]
    • Relative Articles
    • Supplements(0)
    • Cited By
  • 加载中

Catalog

    通讯作者: 陈斌, bchen63@163.com
    • 1. 

      沈阳化工大学材料科学与工程学院 沈阳 110142

    1. 本站搜索
    2. 百度学术搜索
    3. 万方数据库搜索
    4. CNKI搜索
    Get Citation
    PDF
    XML

    Article Metrics

    Article views (1802) PDF downloads(2790) Cited by()
    Proportional views
    Related

    Copyright © 2009 Editorial office of Water Science and Engineering 苏ICP备12023610号-1

    Supported by: Beijing Renhe Information Technology Co. Ltd   support: info@rhhz.net

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return