Effect of distance from the sea on reinforced concrete chloride corrosion probability

Document Type : Research Article


1 School of Civil Engineering, Iran University of Science and Technology, P.O. Box 16765-163, Narmak, Tehran, Iran

2 The Centre of Excellence for Fundamental Studies in Structural Engineering, Iran University of Science and Technology, P.O.BOX: 16765-163;Narmak, Tehran, Iran;

3 Department of civil Engineering, East Tehran Branch, Islamic Azad University, Tehran, Iran


When the discussion is about the destructive effects of salt spray on the coastal structures, the distance between RC structures and the sea is considered as an important parameter. This parameter allows considering the distance influence on structural durability in order to make a proper decision to protect the structure against the corrosive chloride agent. Since probabilistic methods and modeling    at the design stage can save the costs of repair and reconstruction of structures, in this paper, through probabilistic modeling and using Monte Carlo simulation, the probability of reinforcement corrosion initiation has been considered at different distances from seawater as a chloride source. Considering a structure in Caspian Sea condition, the effect of surface chloride reduction is investigated with increasing distance from the sea and its effect on corrosion probability is studied. The results of this study show that by increasing the distance from the sea after 200 meters, the chloride concentration will be significantly reduced. It is also observed that, after 2000 meters, the effect of chloride. Also, it can be seen that with increasing distance, chloride corrosion will not have a significant effect on the durability of reinforced concrete structures. However, further studies are needed regarding the change in the rate of reduction of chloride due to distance from the sea.


Main Subjects

[1]    M. Shekarchi, P. Ghods, R. Alizadeh, M. Chini, M. Hoseini, Durapgulf, a local service life model for the durability of concrete structures in the South of Iran, Arabian Journal for Science and Engineering, 33 (2008) 77-88.
[2]    A.A. ramezanianpour, T. Parhizgar, A.R. Pourkhorshidi, A.M. Raeesghasemi, Assessment of Concrete Durability With Different Cement and Pozzolans in Persian Gulf Environment, 2006.
[3]    P. Sandberg, L. Tang, A. Andersen, Recurrent studies of chloride ingress in uncracked marine concrete at various exposure times and elevations, Cement and Concrete Research, 28(10) (1998) 1489-1503.
[4]    A. Costa, J. Appleton, Chloride penetration into concrete in marine environment—Part I: Main parameters affecting chloride penetration, Materials and Structures, 32(4) (1999) 252-259.
[5]    M. Morcillo, D. De la Fuente, I. Díaz, H. Cano, Atmospheric corrosion of mild steel, Revista de Metalurgia, 47(5) (2011) 426-444.
[6]    M.A. Shayanfar, M.A. Barkhordari, M. Ghanooni-Bagha, Estimation  of Corrosion Occurrence in RC Structure Using Reliability Based PSO Optimization, Periodica Polytechnica Civil Engineering, 59(4) (2015) 531-542.
[7]    E.D. Leonel, W.S. Venturini, Multiple random crack propagation using a boundary element formulation, Engineering Fracture Mechanics, 78(6) (2011) 1077-1090.
[8]    E.D. Leonel, W.S. Venturini,  A. Chateauneuf, A BEM model applied  to failure analysis of multi-fractured structures, Engineering Failure Analysis, 18(6) (2011) 1538-1549.
[9]    D.E. Spiel, G.D. Leeuw, Formation and production of sea spray aerosol, Journal of Aerosol Science, 27 (1996) S65-S66.
[10] J.W. Fitzgerald, Marine aerosols: A review, Atmospheric Environment. Part A. General Topics, 25(3-4) (1991) 533-545.
[11] M.E.R. Gustafsson, L.G. Franzén, Dry deposition and concentration of marine aerosols in a coastal area, SW Sweden, Atmospheric Environment, 30(6) (1996) 977-989.
[12] M.E.R. Gustafsson, L.G. Franzén, Inland transport of marine aerosols in southern Sweden, Atmospheric Environment, 34(2) (2000) 313-325.
[13] M. Morcillo, B. Chico, L. Mariaca, E. Otero, Salinity in marine atmospheric corrosion: its dependence on the wind regime existing in the site, Corrosion Science, 42(1) (2000) 91-104.
[14] A. Neville, Chloride attack of reinforced concrete: an overview, Materials and Structures, 28(2) (1995) 63-70.
[15] L.-O. Nilsson, E. Poulsen, P. Sandberg, H.E. Sørensen, O. Klinghoffer, HETEK, Chloride penetration into concrete, State-of-the-Art. Transport processes, corrosion initiation, test methods and prediction models, in, Danish Road Directorate, 1996.
[16] C.G. Berrocal, K. Lundgren, I. Löfgren, Corrosion of steel bars embedded in fibre reinforced concrete under chloride attack: State of the art, Cement and Concrete Research, 80 (2016) 69-85.
[17] M. Otieno, H. Beushausen, M. Alexander, Chloride-induced corrosion of steel in cracked concrete – Part I: Experimental studies under accelerated and natural marine environments, Cement and Concrete Research, 79 (2016) 373-385.
[18] M. Otieno, H. Beushausen, M. Alexander, Chloride-induced corrosion of steel in cracked concrete—Part II: Corrosion rate prediction models, Cement and Concrete Research, 79 (2016) 386-394.
[19] J. Zuquan, Z. Xia, Z. Tiejun, L. Jianqing, Chloride ions transportation behavior and binding capacity of concrete exposed to different marine corrosion zones, Construction and Building Materials, 177 (2018) 170- 183.
[20] D. Li, R. Wei, L. Li, X. Guan, X. Mi, Pitting corrosion of reinforcing steel bars in chloride contaminated concrete, Construction and Building Materials, 199 (2019) 359-368.
[21] K.A.T. Vu, M.G. Stewart, Structural reliability of concrete bridges including improved chloride-induced corrosion models, Structural Safety, 22(4) (2000) 313-333.
[22] E.C. Bentz, Probabilistic Modeling of Service Life for Structures Subjected to Chlorides, ACI Materials Journal, 100(5) (2003) 391-397.
[23] A.A. Ramezanianpou, E. Jahangiri, F. Moodi, B. Ahmadi, Assessment of the Service Life Design Model Proposed by fib for the Persian Gulf Region, JOC, 5(17) (2014) 101-112.
[24] D.V. Val, M.G. Stewart, Reliability Assessment of Ageing Reinforced Concrete Structures—Current Situation and Future Challenges, Structural Engineering International, 19(2) (2009) 211-219.
[25] M. Ghanoonibagha, M.A. Shayanfar, S. Asgarani, M.a. Zabihi Samani, Service-Life Prediction of Reinforced Concrete Structures in Tidal Zone, Journal Of Marine Engineering, 12(24) (2017).
[26] S. Feliu, M. Morcillo, B. Chico, Effect of Distance from Sea on Atmospheric Corrosion Rate, CORROSION, 55(9) (1999) 883-891.
[27] ACI222 - Corrosion of materials in concrete, ACI Committee, USA, 1985.
[28] D.A. Hausmann, Steel corrosion in concrete--How does it occur?, in, Materials protection, 1967.
[29] N.B.R. Office, Iran›s Design and Construction of Steel Structures, 4th Edition ed., Tose›e Iran, Iran, 1392.
[30] M.A. Shayanfar, M. Ghanooni-Bagha, E. Jahani, Reliability Theory of Structures, Iran University of Science and Technology, Iran, 1394.
[31] C.G. Nogueira, E.D. Leonel, Probabilistic models applied to safety assessment of reinforced concrete structures subjected to chloride ingress, Engineering Failure Analysis, 31 (2013) 76-89.
[32] K.R. Collins, A.S. Nowak, Reliability of structures, Michigan, MC Graw, New York, 2000.
[33] R.E. Melchers, Structural reliability: Analysis and prediction, John Wiley & Sons, Sydney,Australia, 2018.
[34] S.-K. Choi, R.V. Grandhi, R.A. Canfield, Reliability-based structural design, Springer, London, 2007.
[35] M.A. Shayanfar, E. Jahani, Reliability Index in ABA Design Code, Amirkabir Journal of Civil Engineering, 42(01) (2010) 41-46.
[36] K. Tuutti, CORROSION OF STEEL IN CONCRETE, Swedish Cement and Concrete Research Institute Stockholm, Sweden, 1982.
[37] M.G. Stewart, Spatial variability of pitting corrosion and its influence on structural fragility and reliability of RC beams in flexure, Structural Safety, 26(4) (2004) 453-470.
[38] M.A. Shayanfar, M. Ghanooni-Bagha, A Study Of Corrosion Effects Of Reinforcements On The Capacity Of Bridge Piers Via The Nonlinear Finite Element Method, Sharif Journal of Civil Engineering, 28-2(3) (2012) 59-68.
[39] fib Model Code, International Federation for Structural Concrete, Lausanne, Switzerland, 2010.
[40] N. Berke, M. Hicks, Estimating the Life Cycle of Reinforced Concrete Decks and Marine Piles Using Laboratory Diffusion and Corrosion Data, in: V. Chaker (Ed.) Corrosion Forms and Control for Infrastructure, ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, 1992, pp. 207-207-225.
[41] K. Takewaka, S. Mastumoto, Quality and Cover Thickness of  Concrete Based on the Estimation of Chloride Penetration in Marine Environments, Special Publication, 109 (1988) 381-400.
[42] T. Ohta, Corrosion of Reinforcing Steel in Concrete Exposed to Sea Air, Special Publication, 126 (1991) 459-478.
[43] P. Bamforth, W.F. Price, An international review of chloride ingress into structural concrete, Thomas Telford, 1997.
[44] Y.-C.  Ou, H.-D. Fan, N.D. Nguyen, Long-term seismic performance  of reinforced concrete bridges under steel  reinforcement  corrosion  due to chloride attack: LONG-TERM SEISMIC PERFORMANCE OF CORRODED RC BRIDGES, Earthquake Engineering & Structural Dynamics, (2013).
[45] Model code for service life design - Bulletin34, Federation International, 2006.
[46] Q. Suo, M.G. Stewart, Corrosion cracking prediction updating of deteriorating RC structures using inspection information, Reliability Engineering & System Safety, 94(8) (2009) 1340-1348.