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http://dx.doi.org/10.12989/cac.2018.21.4.471

A multiscale numerical simulation approach for chloride diffusion and rebar corrosion with compensation model  

Tu, Xi (Key Laboratory of New Technology for Construction of Cities in Mountain Area, Chongqing University)
Li, Zhengliang (Key Laboratory of New Technology for Construction of Cities in Mountain Area, Chongqing University)
Chen, Airong (Department of Bridge Engineering, Tongji University)
Pan, Zichao (Department of Bridge Engineering, Tongji University)
Publication Information
Computers and Concrete / v.21, no.4, 2018 , pp. 471-484 More about this Journal
Abstract
Refined analysis depicting mass transportation and physicochemical reaction and reasonable computing load with acceptable DOFs are the two major challenges of numerical simulation for concrete durability. Mesoscopic numerical simulation for chloride diffusion considering binder, aggregate and interfacial transition zone is unable to be expended to the full structure due to huge number of DOFs. In this paper, a multiscale approach of combining both mesoscopic model including full-graded aggregate and equivalent macroscopic model was introduced. An equivalent conversion of chloride content at the Interfacial Transition Layer (ITL) connecting both models was considered. Feasibility and relative error were discussed by analytical deduction and numerical simulation. Case study clearly showed that larger analysis model in multiscale model expanded the diffusion space of chloride ion and decreased chloride content in front of rebar. Difference for single-scale simulation and multiscale approach was observed. Finally, this paper addressed some worth-noting conclusions about the chloride distribution and rebar corrosion regarding the configuration of rebar placement, rebar diameter, concrete cover and exposure period.
Keywords
reinforced concrete structure; chloride diffusion; numerical simulation; mesoscopic; multiscale;
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Times Cited By KSCI : 1  (Citation Analysis)
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1 Yuan, Q., Shi, C., De Schutter, G., Audenaert, K. and Deng, D. (2009), "Chloride binding of cement-based materials subjected to external chloride environment-A review", Constr. Build. Mater., 23(1), 1-13.   DOI
2 Zhang, R., Castel, A. and Francois, R. (2009), "The corrosion pattern of reinforcement and its influence on serviceability of reinforced concrete members in chloride environment", Cement Concrete Res., 39(11), 1077-1086.   DOI
3 Zhang, R., Castel, A. and Francois, R. (2010), "Concrete cover cracking with reinforcement corrosion of RC beam during chloride-induced corrosion process", Cement Concrete Res., 40(3), 415-425.   DOI
4 Zhao, Y., Gao, X., Xu, C. and Jin, W. (2009), "Concrete surface chloride ion concentration varying with seasons in marine environment (Chinese)", J. Zhejiang Univ. (Eng. Sci.), 43(11), 2120-2124.
5 Zhu, W., Francois, R., Fang, Q. and Zhang, D. (2016), "Influence of long-term chloride diffusion in concrete and the resulting corrosion of reinforcement on the serviceability of RC beams", Cement Concrete Compos., 71, 144-152.   DOI
6 Chen, L., Qian, Z. and Wang, J. (2016), "Multiscale numerical modeling of steel bridge deck pavements considering vehicle-pavement interaction", Int. J. Geomech., 16(1), B4015002.   DOI
7 Andrade, C., Alonso, C. and Molina, F.J. (1993), "Cover cracking as a function of bar corrosion: Part I-Experimental test", Mater. Struct., 26(8), 453-464.   DOI
8 Angst, U., Elsener, B., Larsen, C.K. and Vennesland, O . (2009), "Critical chloride content in reinforced concrete-A review", Cement Concrete Res., 39(12), 1122-1138.   DOI
9 Biondini, F., Bontempi, F., Frangopol, D.M. and Malerba, P.G. (2004), "Cellular automata approach to durability analysis of concrete structures in aggressive environments", J. Struct. Eng., 130(11), 1724-1737.   DOI
10 Chun Qing, L. (2000), "Corrosion initiation of reinforcing steel in concrete under natural salt spray and service loading-results and analysis", Mater. J., 97(6), 690-697.
11 Francois, R. and Arliguie, G. (1999), "Effect of microcracking and cracking on the development of corrosion in reinforced concrete members", Mag. Concrete Res., 51(2), 143-150.   DOI
12 Guo, L., Guo, X.M. and Mi, C.W. (2012), "Multi-scale finite element analysis of chloride diffusion in concrete incorporating paste/aggregate ITZs", Sci. Chin. Phys. Mech., 55(9), 1696-1702.   DOI
13 Hiratsuka, Y. and Maekawa, K. (2015), "Multi-scale and Multi-Chemo-Physics analysis applied to fatigue life assessment of strengthened bridge decks", Computational Plasticity Xiii: Fundamentals and Applications, 596-607.
14 Ladeveze, P. (2004), "Multiscale modelling and computational strategies for composites", Int. J. Numer. Meth. Eng., 60(1), 233-253.   DOI
15 Liu, T. and Weyers, R.W. (1998), "Modeling the dynamic corrosion process in chloride contaminated concrete structures", Cement Concrete Res., 28(3), 365-379.   DOI
16 Li, J. and Shao, W. (2014), "The effect of chloride binding on the predicted service life of RC pipe piles exposed to marine environments", Ocean Eng., 88, 55-62.   DOI
17 Li, X., Wu, F. and Huang, Z. (2009), "Analytical solution to chloride diffusion equation on concrete", Concrete, 10, 30-33. (in Chinese)
18 Li, Z., Tu, X. and Chen, A.R. (2014), "Stochastic durability assessment of concrete pylon for long-span cable stayed bridge", Bridge Maintenance, Safety, Management and Life Extension, CRC Press, 2544-2551.
19 Maekawa, K., Ishida, T. and Kishi, T. (2003), "Multi-scale modeling of concrete performance integrated material and structural mechanics", J. Adv. Concrete Technol., 1(2), 91-126.   DOI
20 Maekawa, K., Ishida, T. and Kishi, T. (2009), Multi Scale Modeling of Structural Concrete, Taylor & Francis, Inc.
21 Pritpal, S.M. and Mahmoud, S.E. (1999), "Flexural strength of concrete beams with corroding reinforcement", Struct. J., 96(1), 149-158.
22 Mangat, P.S. and Molloy, B.T. (1994), "Prediction of long-term chloride concentration in concrete", Mater. Struct., 27(6), 338-346.   DOI
23 Moodi, F., Ramezanianpour, A. and Jahangiri, E. (2014), "Assessment of some parameters of corrosion initiation prediction of reinforced concrete in marine environments", Comput. Concrete, 13(1), 71-82.   DOI
24 Pan, Z., Chen, A. and Ruan, X. (2015), "Spatial variability of chloride and its influence on thickness of concrete cover: A two-dimensional mesoscopic numerical research", Eng. Struct., 95, 154-169.   DOI
25 Roberge, P.R. (2008), Corrosion Engineering Principles and Practice, McGraw-Hill Education.
26 Savija, B., Lukovic, M., Pacheco, J. and Schlangen, E. (2013), "Cracking of the concrete cover due to reinforcement corrosion: A two-dimensional lattice model study", Constr. Build. Mater., 44, 626-638.   DOI
27 Sun, B., Wang, X. and Li, Z. (2015), "Meso-scale image-based modeling of reinforced concrete and adaptive multi-scale analyses on damage evolution in concrete structures", Comput. Mater. Sci., 110, 39-53.   DOI
28 Sun, G., Sun, W., Zhang, Y. and Liu, Z. (2012), "Multi-scale modeling of the effective chloride ion diffusion coefficient in cement-based composite materials", J. Wuhan Univ. Technol., Mater. Sci. Ed., 27(2), 364-373.   DOI
29 Torres-Acosta Andres, A. and Martinez-Madrid, M. (2003), "Residual life of corroding reinforced concrete structures in marine environment", J. Mater. Civil Eng., 15(4), 344-353.   DOI
30 Torres-Acosta, A.A., Navarro-Gutierrez, S. and Teran-Guillen, J. (2007), "Residual flexure capacity of corroded reinforced concrete beams", Eng. Struct., 29(6), 1145-1152.   DOI
31 Unger, J.F. and Eckardt, S. (2011), "Multiscale modeling of concrete", Arch. Comput. Meth. Eng., 18(3), 341.   DOI
32 Vidal, T., Castel, A. and Francois, R. (2004), "Analyzing crack width to predict corrosion in reinforced concrete", Cement Concrete Res., 34(1), 165-174.   DOI
33 Vidal, T., Castel, A. and Francois, R. (2007), "Corrosion process and structural performance of a 17 year old reinforced concrete beam stored in chloride environment", Cement Concrete Res., 37(11), 1551-1561.   DOI
34 Ye, H.L., Jin, X.Y., Chen, W., Fu, C.Q. and Jin, N.G. (2016), "Prediction of chloride binding isotherms for blended cements", Comput. Concrete, 17(5), 665-682.