DOI QR코드

DOI QR Code

Assessment of some parameters of corrosion initiation prediction of reinforced concrete in marine environments

  • Moodi, Faramarz (Concrete technology and durability research center, Amirkabir University of technology) ;
  • Ramezanianpour, Aliakbar (Concrete technology and durability research center, Amirkabir University of technology) ;
  • Jahangiri, Ehsan (Concrete technology and durability research center, Amirkabir University of technology)
  • 투고 : 2013.03.15
  • 심사 : 20130431
  • 발행 : 2014.01.25

초록

Chloride ion ingress is one of the major problems that affect the durability of concrete structures such as bridge decks, concrete pavements, and other structures exposed to harsh saline environments. Therefore, durability based design of concrete structures in severe condition has gained great significance in recent decades and various mathematical models for estimating the service life of rein-forced concrete have been proposed. In spite of comprehensive researches on the corrosion of rein-forced concrete, there are still various controversial concepts in quantitation of durability parameters such as chloride diffusion coefficient and surface chloride content. Effect of environment conditions on the durability of concrete structures is one of the most important issues. Hence, regional investigations are necessary for durability based design and evaluation of the models. Persian Gulf is one of the most aggressive regions of the world because of elevated temperature and humidity as well as high content of chloride ions in seawater. The aim of this study is evaluation of some parameters of durability of RC structures in marine environment from viewpoint of corrosion initiation. For this purpose, some experiments were carried out on the real RC structures and in laboratory. The result showed that various uncertainties in parameters of durability were existed.

키워드

참고문헌

  1. ACI Committee 365.1R-42 (2000), "Service-Life Prediction-State of the Art report".
  2. Angst, U., Elsener, B., Claus, K. and Vennesland, L. (2009), "Critical chloride content in reinforced concrete - A review", Cement Concrete Res., 39, 1122-1138. https://doi.org/10.1016/j.cemconres.2009.08.006
  3. Ann, K.Y., Ahn, J.H. and Ryou, J.S. (2009), "The importance of chloride content at the concrete surface in assessing the time to corrosion of steel in concrete structures", Constr. Build. Mater., 23, 239-245. https://doi.org/10.1016/j.conbuildmat.2007.12.014
  4. Ashrafi, H.R. and Ramezanianpour, A.A. (2007), "Service life prediction of silica fume concretes", Int. J. Civil Eng., 5(3), 182-197.
  5. ASTM C114 (2010), Standard Test Method for Chemical Analysis of Hydraulic Cement, Annual Book of ASTM Standards, Vol. 04.01, PA.
  6. ASTM C1202 (2010), Standard Test Method for Electrical Indication of Chloride's Ability to Resist Chloride, Annual Book of ASTM Standards, Vol. 04.02, PA.
  7. Collepardi, M., Marcialis, A. and Turriziani, R. (1970), "The kinetics of chloride ions penetration in concrete (in Italian)", Il Cemento, 67, 157-164.
  8. Crank, J. (1975), The mathematics of diffusion, 2nd ed., Oxford Press, London.
  9. Elishakoff, I. and Miglis, Y. (2011), "Revisiting exponential stress corrosion model", Int. J. Ocean Syst. Eng., 1(2), 121-130. https://doi.org/10.12989/ose.2011.1.2.121
  10. Fib (2006), "Model code for service life design", The International Federation for Structural Concrete, Bulletin 34.
  11. FM 5-578 (2004), "Florida method of test for concrete resistivity as an electrical indicator of its permeability".
  12. Ghosh, P., Hammond, A. and Tikalsky, P.J. (2011), "Prediction of equivalent steady-state chloride diffusion coefficients", ACI Mater. J., 108(1), 88-94.
  13. Gowers, K.R. and Millard, S.G. (1999), "Measurement of concrete resistivity for assessment of corrosion severity of steel using wenner technique", ACI Mater. J., 96(5), 539-541.
  14. Marchanda, J. and Samson, E. (2009), "Predicting the service-life of concrete structures - limitations of simplified models", Cement Concrete Compos., 31(8), 515-521. https://doi.org/10.1016/j.cemconcomp.2009.01.007
  15. Nilsson, L.O. (2009), "Models for chloride ingress into concrete - from Collepardi to today", Int. J. Modeling, Identification Control, 7(2), 129-134. https://doi.org/10.1504/IJMIC.2009.027065
  16. NordTest (1999), Concrete, Mortar and Cement-Based Repair Materials: Chloride Migration Coefficient from Non-Steady-State Migration Experiments, NT Build 492 Report, Nord Test Register.
  17. Polder, R. (2000), "Test methods for on-site measurement of resistivity of concrete", Mater. Struct., RELM TC 154, 33, 603-611.
  18. Poulsen, E. and Mejlbro, L. (2005), Diffusion of Chloride in Concrete, Taylor & Francis, London and New York.
  19. Ramezanianpour, A.A. and Miyamoto, A. (2000), "Durability of concrete structures in the persian gulf", Concrete J, Japan Concrete Inst., 38(3).
  20. Ramezanianpour, A.A. and Pourkhorshidi, A.R. (2004), "Iranian code for durable concrete in Persian Gulf and Omman Sea", Build. Eng. Housing Sci. J., 2(4).
  21. Ramezanianpour, A.A., Jahangiri, E., Ahmadi, B. and Moodi, F. (2012), "Evaluation of models for service-life prediction of RC structures in severe environmental conditions", In: ACI conference: Twelfth International Conference on Recent Advances in Concrete Technology and Sustainability Issues, Prague, Czech Republic.
  22. Ramezanianpour, A.A., Jahangiri, E., Ahmadi, B. and Moodi, F. (2012), "Evaluation and modification of the fib service-life design model for the persian gulf region", In: fib symposium: concrete structures for sustainable community, Stockholm, Sweden.
  23. Robert, C. (2009), Monte carlo methods in statistics, University Paris Dauphine and CREST, INSEE.
  24. Shekarchi, M., Ghods, P., Alizadeh, R., Chini, M. and Hoseini, M. (2008), "Durapgulf, a local service life model for the durability of concrete structures in the south of Iran", Arabian J. Sci. Eng., 33(1B), 77-88.
  25. Shin, K.J., Kim, J.S. and Lee, K.M. (2011), "Probability-based durability design software for concrete structures subjected to chloride exposed environments", Comput. Concr., 8(5), 511-524. https://doi.org/10.12989/cac.2011.8.5.511
  26. Song, H.W., Lee, C.H. and Ann, K.Y. (2008), "Factors influencing chloride transport in concrete structures exposed to marine environments", Cement Concrete Compos., 30(1), 113-121. https://doi.org/10.1016/j.cemconcomp.2007.09.005

피인용 문헌

  1. Seismic damage estimation of reinforced concrete framed structures affected by chloride-induced corrosion vol.9, pp.4, 2015, https://doi.org/10.12989/eas.2015.9.4.851
  2. Correlation between chloride-induced corrosion initiation and time to cover cracking in RC Structures vol.56, pp.2, 2015, https://doi.org/10.12989/sem.2015.56.2.257
  3. Prediction of initiation time of corrosion in RC using meshless methods vol.16, pp.5, 2015, https://doi.org/10.12989/cac.2015.16.5.669
  4. Probabilistic durability assessment of concrete structures in marine environments: Reliability and sensitivity analysis vol.31, pp.1, 2017, https://doi.org/10.1007/s13344-017-0008-3
  5. A multiscale numerical simulation approach for chloride diffusion and rebar corrosion with compensation model vol.21, pp.4, 2014, https://doi.org/10.12989/cac.2018.21.4.471