Materials and Structures

, Volume 49, Issue 1–2, pp 507–520 | Cite as

Electrochemical characterization of early corrosion in prestressed concrete exposed to salt water

Original Article


Five large-scale concrete specimens reinforced with bonded seven-wire steel strands and representative of portions of bridge piles were exposed to salt water wet/dry cycles for 1 year, simulating tidal action. Corrosion of multi-wire steel strands was facilitated by minimizing the concrete cover. Half-cell potential and polarization resistance measurements were routinely performed to assess early corrosion. Supporting visual evidence of pitting and crevice corrosion was collected from strands removed from decommissioned specimens. It is shown that corrosion can be assessed based on polarization resistance thresholds. Tafel slopes were numerically estimated for passive and corroding strands from ±20 mV polarization curves, and used to gain a preliminary insight into the evolution of the Stern–Geary parameter and the associated corrosion intensity. These results suggest that the Stern–Geary parameter increases upon depassivation of the strands, different from deformed bars in reinforced concrete.


Corrosion Polarization resistance Prestressed concrete Salt water 



This material is based in part upon work supported by the U.S. Department of Commerce, National Institute of Standards and Technology (NIST), Technology Innovation Program, under Cooperative Agreement Number 70NANB9H9007. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of NIST. The support of the University of South Carolina (USC) through the second author’s research incentive funds is gratefully acknowledged. Special thanks are extended to Mr. Nima Zohhadi (Ph.D. student), who provided assistance in conducting the SEM analysis, and the personnel and undergraduate research assistants of the USC Structures and Materials Laboratory.


  1. 1.
    ACI Technical Committee 222 (2010) Corrosion of prestressing steels. American Concrete Institute, Farmington HillsGoogle Scholar
  2. 2.
    Andrade C, González JA (1978) Quantitative measurements of corrosion rate of reinforcing steels embedded in concrete using polarization resistance measurements. Werkst Korros 29:515–519CrossRefGoogle Scholar
  3. 3.
    Andrade C, Alonso C (1996) Corrosion rate monitoring in the laboratory and on-site. Constr Build Mater 10:315–328CrossRefGoogle Scholar
  4. 4.
    Angst UM, Elsener B, Larsen CK, Vennesland Ø (2011) Chloride induced reinforcement corrosion: electrochemical monitoring of initiation stage and chloride threshold values. Corros Sci 53:1451–1464CrossRefGoogle Scholar
  5. 5.
    ASTM (2012) Standard test method for compressive strength of cylindrical concrete specimens—ASTM C39. ASTM International, West ConshohockenGoogle Scholar
  6. 6.
    ASTM (2009) Standard test method for corrosion potentials of uncoated reinforcing steel in concrete—ASTM C876. ASTM International, West ConshohockenGoogle Scholar
  7. 7.
    ASTM (2009) Standard test method for conducting potentiodynamic polarization resistance measurements—ASTM G59. ASTM International, West ConshohockenGoogle Scholar
  8. 8.
    Barnartt S (1970) Two-point and three-point methods for the investigation of electrode reaction mechanisms. Electrochim Acta 15:1313–1324CrossRefGoogle Scholar
  9. 9.
    Branch MA, Coleman TF, Li Y (1999) A subspace, interior, and conjugate gradient method for large-scale bound-constrained minimization problems. SIAM J Sci Comput 21:1–23MathSciNetCrossRefMATHGoogle Scholar
  10. 10.
    Chang ZT, Cherry B, Marosszeky M (2008) Polarization behavior of steel bar samples in concrete in seawater. Part 1: Experimental measurement of polarization curves of steel in concrete. Corros Sci 50:357–364CrossRefGoogle Scholar
  11. 11.
    Chang ZT, Cherry B, Marosszeky M (2008) Polarization behavior of steel bar samples in concrete in seawater. Part 2: A polarization model for corrosion evaluation of steel in concrete. Corros Sci 50:3078–3086CrossRefGoogle Scholar
  12. 12.
    Cherry BW, Price SM (1980) Pitting, crevice, and stress corrosion cracking studies of cold drawn eutectoid steels. Corros Sci 20:1163–1183CrossRefGoogle Scholar
  13. 13.
    Cigna R, Proverbio E, Rocchini G (1993) A study of reinforcement behaviour in concrete structures using electrochemical techniques. Corros Sci 35:1579–1584CrossRefGoogle Scholar
  14. 14.
    Díaz B, Freire L, Nóvoa XR, Pérez MC (2009) Electrochemical behavior of high strength steel wires in the presence of chlorides. Electrochim Acta 54:5190–5198CrossRefGoogle Scholar
  15. 15.
    Elsener B (2005) Corrosion rate of steel in concrete—measurements beyond the Tafel law. Corros Sci 47:3019–3033CrossRefGoogle Scholar
  16. 16.
    Feliu S, González JA, Miranda JM, Feliu V (2005) Possibilities and problems of in situ techniques for measuring steel corrosion rates in large reinforced concrete structures. Corros Sci 47:217–238CrossRefGoogle Scholar
  17. 17.
    Feliu S, González JA (1989) Determining polarization resistance in reinforced concrete slabs. Corros Sci 29:105–113CrossRefGoogle Scholar
  18. 18.
    Flis J, Sehgal DL et al (1993) Condition evaluation of concrete bridges relative to reinforcement corrosion. Volume 2: method for measuring the corrosion rate of reinforcing steel. National Research Council, Washington, DCGoogle Scholar
  19. 19.
    Ge J, Isgor OB (2007) Effects of Tafel slope, exchange current density and electrode potential on the corrosion of steel in concrete. Mater Corros 58:573–582CrossRefGoogle Scholar
  20. 20.
    González JA, Molina A, Escudero ML, Andrade C (1985) Errors in the electrochemical evaluation of very small corrosion rates. I. Polarization resistance method applied to corrosion of steel in concrete. Corros Sci 25:917–930CrossRefGoogle Scholar
  21. 21.
    Gulikers J, Raupach M (2006) Numerical models for the propagation period of reinforcement corrosion—comparison of a case study calculated by different researchers. Mater Corros 57:618–627CrossRefGoogle Scholar
  22. 22.
    Henriques T, Reguengos A, Proença L, Pereira EV, Rocha MM, Neto MMM, Fonseca ITE (2010) A voltammetric study on the corrosion of prestressed steel in saturated Ca(OH)2 solution containing chloride ions. J Appl Electrochem 40:99–107CrossRefGoogle Scholar
  23. 23.
    Hope BB, Page JA, Ip AKC (1986) Corrosion rates of steel in concrete. Cement Concr Res 16:771–781CrossRefGoogle Scholar
  24. 24.
    Jankowski J, Juchniewicz R (1980) A four-point method for corrosion rate determination. Corros Sci 20:841–851CrossRefGoogle Scholar
  25. 25.
    Jäggi S, Elsener B, Böhni H (2000) Oxygen reduction on mild steel and stainless steel in alkaline solutions. In: Mietz J, Polder R, Elsener B (eds) Corrosion of reinforcement in concrete—corrosion mechanisms and corrosion protection. European Federation of Corrosion, London, pp 3–12Google Scholar
  26. 26.
    Jensen M, Britz D (1991) Comparison of some methods of calculation of corrosion parameters from discretely sampled polarization curves. Corros Sci 32:285–302CrossRefGoogle Scholar
  27. 27.
    Li F, Yuan Y, Li C (2011) Corrosion propagation of prestressing steel strands in concrete subject to chloride attack. Constr Build Mater 25:3878–3885CrossRefGoogle Scholar
  28. 28.
    Macdonald DD (2011) The history of the point-defect model for the passive state: a brief review of film growth aspects. Electrochim Acta 56:1761–1772CrossRefGoogle Scholar
  29. 29.
    Mangat PS, Molloy BT (1994) Prediction of long term chloride concentration in concrete. Mater Struct 27:338–346CrossRefGoogle Scholar
  30. 30.
    Mansfeld F (2009) Fundamental aspects of the polarization resistance technique—the early days. J Solid State Electr 13:515–520CrossRefGoogle Scholar
  31. 31.
    Mansfeld F (1973) Tafel slopes and corrosion rates from polarization resistance measurements. Corrosion 29:397–402CrossRefGoogle Scholar
  32. 32.
    Mansfeld F, Oldham KB (1971) A modification of the Stern–Geary linear polarization equation. Corros Sci 11:787–796CrossRefGoogle Scholar
  33. 33.
    Moser RD, Singh PM, Khan LF, Kurtis KE (2011) Chloride-induced corrosion of prestressing steels considering crevice effects and surface imperfections. Corrosion 67:1–14CrossRefGoogle Scholar
  34. 34.
    Naito C, Sause R et al (2010) Forensic examination of a noncomposite adjacent precast prestressed concrete box beam bridge. J Bridge Eng 15:408–418CrossRefGoogle Scholar
  35. 35.
    Nilsson L-O, Poulsen E, Sandberg P, Sørensen HE, Klinghoffer O (1996) HETEK, chloride penetration into concrete, state-of-the-art, transport processes, corrosion initiation, test methods and prediction models. Danish Road Directorate, CopenhagenGoogle Scholar
  36. 36.
    Cannon E, Lewinger C, Abi C, Hamilton HR III (2006) St. George Island bridge pile testing. Florida Department of Transportation, TallahasseeGoogle Scholar
  37. 37.
    Novokshchenov V (1990) Prestressed bridges and marine environment. J Struct Eng 116:3191–3205CrossRefGoogle Scholar
  38. 38.
    Novokshchenov V (1997) Corrosion surveys of prestressed bridge members using a half-cell potential technique. Corrosion 53:489–498CrossRefGoogle Scholar
  39. 39.
    Proverbio E, Bonaccorsi LM (2002) Failure of prestressing steel induced by crevice corrosion in prestressed concrete structures. In: Proeedings of 9th international conference on durability of materials and components (9DBCM), BrisbaneGoogle Scholar
  40. 40.
    Pourbaix M (1973) Lectures on electrochemical corrosion. Plenum Press, New YorkCrossRefGoogle Scholar
  41. 41.
    Poursaee A (2010) Corrosion of steel bars in saturated Ca(OH)2 and concrete pore solution. Concr Res Lett 1:90–97Google Scholar
  42. 42.
    Poursaee A, Hansson CM (2009) Potential pitfalls in assessing chloride-induced corrosion of steel in concrete. Cement Concr Res 39:391–400CrossRefGoogle Scholar
  43. 43.
    RILEM TC 154-EMC (2004) Test methods for on-site corrosion rate measurement of steel reinforcement in concrete by means of the polarization resistance method. Mater Struct 37:623–643CrossRefGoogle Scholar
  44. 44.
    RILEM TC 154-EMC (2003) Half-cell potential measurements—potential mapping on reinforced concrete structures., pp 461–471Google Scholar
  45. 45.
    Rocchini G (1998) Some basic considerations on the Mansfeld method. Corros Sci 40:593–602CrossRefGoogle Scholar
  46. 46.
    Rocchini G (1994) An improvement to the Mansfeld method for computing electrochemical parameters from polarization data. Corros Sci 36:567–581CrossRefGoogle Scholar
  47. 47.
    Stern M, Geary AL (1957) Electrochemical polarization I. A theoretical analysis of the shape of polarization curves. J Electrochem Soc 104:56–63CrossRefGoogle Scholar
  48. 48.
    Stratfull RF (1973) Half-cell potentials and the corrosion of steel in concrete. Highway Res Rec 433:12–21Google Scholar
  49. 49.
    Subramaniam KV, Bi M (2010) Investigation of steel corrosion in cracked concrete: evaluation of macrocell and microsell rates using Tafel polarization response. Corros Sci 52:2725–2735CrossRefGoogle Scholar
  50. 50.
    Suma AB, Ferraro RM, Metrovich B, Matta F, Nanni A (2011) Non-destructive evaluation techniques and acoustic emission for damage assessment of concrete bridge in marine environment. In: Kim Y (ed) ACI SP-277—recent advances in maintenance and repair of concrete bridges. American Concrete Institute, Farmington Hills, pp 109–128Google Scholar
  51. 51.
    Vélez W, Matta F, Ziehl P (2014) Acoustic emission monitoring of early corrosion in prestressed concrete piles. Struct Control Health Monit. doi: 10.1002/stc.1723

Copyright information

© RILEM 2014

Authors and Affiliations

  1. 1.Department of Civil and Environmental EngineeringUniversity of South CarolinaColumbiaUSA
  2. 2.Department of Civil and Environmental EngineeringUniversity of South CarolinaColumbiaUSA
  3. 3.Department of Civil and Environmental EngineeringUniversity of South CarolinaColumbiaUSA

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