Differences between Time-Dependent Instantaneous and Apparent Chloride Diffusion Coefficients of Concrete in Tidal Environment
Publication: Journal of Materials in Civil Engineering
Volume 33, Issue 2
Abstract
Time-dependent chloride diffusivity can reflect the chloride transport in concrete, which is greatly affected by different factors such as material composition and environment condition. In this paper, three tests with eight kinds of concrete in different exposure environments (two natural tidal environments and one artificial simulated environment) were designed, and the profile of free chloride concentration at different depths and exposure times were obtained. The apparent and instantaneous chloride diffusion coefficients were determined, and their time-dependent properties were analyzed. The differences between apparent and instantaneous chloride diffusion coefficients were discussed, and the corresponding influencing factors were analyzed. Results show that under the similar climate environments, water salinity is the main factor affecting the age reduction factors of apparent and instantaneous chloride diffusion coefficients of ordinary concrete, i.e., age reduction factors increase with water salinity. Besides, the artificial simulated environment with characteristics of high temperature and high humidity has a significant effect on the age reduction factor of the instantaneous chloride diffusion coefficient. Moreover, the difference between apparent and instantaneous chloride diffusion coefficients of ordinary concrete decreases gradually with the increasing water-cement (w/c) ratio and the addition of silica fume (SF), but increases when adding fly ash (FA) and basalt fiber (BF) into concrete. Temperature is the most important factor affecting the difference between apparent and instantaneous chloride diffusion coefficients, but the effect of exposure time is not significant.
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Data Availability Statement
Some or all data, models, or code that support the findings of this study are available from the corresponding author upon reasonable request.
Acknowledgments
The authors acknowledge and appreciate the support received from the Research Fund for the Natural Science Foundation of Zhejiang Province (LY19E090006, LQ18G010007). Moreover, thanks are due to Jiandong Wang, Fan Bian, Zhaofeng Fang, Jia Wu, Pinjun Zhang, Meng Lv, and Shengxuan Xu for assistance with the experiments.
References
Andrade, C., M. Castellote, and R. d’Andrea. 2011. “Measurement of ageing effect on chloride diffusion coefficients in cementitious matrices.” J. Nucl. Mater. 412 (1): 209–216. https://doi.org/10.1016/j.jnucmat.2010.12.236.
Audenaert, K., Q. Yuan, and G. De Schutter. 2010. “On the time dependency of the chloride migration coefficient in concrete.” Constr. Build. Mater. 24 (3): 396–402. https://doi.org/10.1016/j.conbuildmat.2009.07.003.
Basheer, L., J. Kropp, and D. J. Cleland. 2001. “Assessment of the durability of concrete from its permeation properties: A review.” Constr. Build. Mater. 15 (2–3): 93–103. https://doi.org/10.1016/S0950-0618(00)00058-1.
Bhargava, K., Y. Mori, and A. K. Ghosh. 2011. “Time-dependent reliability of corrosion-affected RC beams. Part 3: Effect of corrosion initiation time and its variability on time-dependent failure probability.” Nucl. Eng. Des. 241 (5): 1395–1402. https://doi.org/10.1016/j.nucengdes.2010.06.039.
Bonavetti, V., H. Donza, V. Rahhal, and E. Irassar. 2000. “Influence of initial curing on the properties of concrete containing limestone blended cement.” Cem. Concr. Res. 30 (5): 703–708. https://doi.org/10.1016/S0008-8846(00)00217-9.
Chari, M. N., M. Shekarchi, M. H. Tadayon, and M. Moradian. 2018. “Prediction of chloride ingress into blended cement concrete: Evaluation of a combined short-term laboratory-numerical procedure.” Constr. Build. Mater. 162: 649–662. https://doi.org/10.1016/j.conbuildmat.2017.12.064.
Chauhan, A., and U. K. Sharma. 2019. “Influence of temperature and relative humidity variations on non-uniform corrosion of reinforced concrete.” Structures 19 (Jun): 296–308. https://doi.org/10.1016/j.istruc.2019.01.016.
Climent, M. A., G. de Vera, J. F. López, E. Viqueira, and C. Andrade. 2002. “A test method for measuring chloride diffusion coefficients through nonsaturated concrete. Part I: The instantaneous plane source diffusion case.” Cem. Concr. Res. 32 (7): 1113–1123. https://doi.org/10.1016/S0008-8846(02)00750-0.
Costa, A., and J. Appleton. 1999. “Chloride penetration into concrete in marine environment. Part II: Prediction of long term chloride penetration.” Mater. Struct. 32 (5): 354–359. https://doi.org/10.1007/BF02479627.
de Medeiros-Junior, R. A., M. G. de Lima, P. C. de Brito, and M. H. F. de Medeiros. 2015. “Chloride penetration into concrete in an offshore platform-analysis of exposure conditions.” Ocean Eng. 103 (Jul): 78–87. https://doi.org/10.1016/j.oceaneng.2015.04.079.
de Vera, G., M. A. Climent, E. Viqueira, C. Antón, and C. Andrade. 2007. “A test method for measuring chloride diffusion coefficients through partially saturated concrete. Part II: The instantaneous plane source diffusion case with chloride binding consideration.” Cem. Concr. Res. 37 (5): 714–724. https://doi.org/10.1016/j.cemconres.2007.01.008.
de Weerdt, K., D. Orsáková, A. C. A. Müller, C. K. Larsen, B. Pedersen, and M. R. Geiker. 2016. “Towards the understanding of chloride profiles in marine exposed concrete, impact of leaching and moisture content.” Constr. Build. Mater. 120 (Sep): 418–431. https://doi.org/10.1016/j.conbuildmat.2016.05.069.
Dousti, A., R. Rashetnia, B. Ahmadi, and M. Shekarchi. 2013. “Influence of exposure temperature on chloride diffusion in concretes incorporating silica fume or natural zeolite.” Constr. Build. Mater. 49 (Dec): 393–399. https://doi.org/10.1016/j.conbuildmat.2013.08.086.
Farahani, A., H. Taghaddos, and M. Shekarchi. 2015. “Prediction of long-term chloride diffusion in silica fume concrete in a marine environment.” Cem. Concr. Compos. 59 (May): 10–17. https://doi.org/10.1016/j.cemconcomp.2015.03.006.
Frederiksen, J. M., L. Mejlbro, and L. O. Nilsson. 2008. Fick’s 2nd law-complete solutions for chloride ingress into concrete: With focus on time dependent diffusivity and boundary condition. Lund, Sweden: Lund Univ.
Guo, L., T. Chen, and X. W. Gao. 2012. “Transient meshless boundary element method for prediction of chloride diffusion in concrete with time dependent nonlinear coefficients.” Eng. Anal. Boundary Elem. 36 (2): 104–111. https://doi.org/10.1016/j.enganabound.2011.08.005.
Homan, L., A. N. Ababneh, and Y. P. Xi. 2016. “The effect of moisture transport on chloride penetration in concrete.” Constr. Build. Mater. 125 (Oct): 1189–1195. https://doi.org/10.1016/j.conbuildmat.2016.08.124.
Jain, R. B. 2016. “A recursive version of Grubbs’ test for detecting multiple outliers in environmental and chemical data.” Clin. Biochem. 43 (12): 1030–1033. https://doi.org/10.1016/j.clinbiochem.2010.04.071.
Juenger, M. C. G., and R. Siddique. 2015. “Recent advances in understanding the role of supplementary cementitious materials in concrete.” Cem. Concr. Res. 78 (Dec): 71–80. https://doi.org/10.1016/j.cemconres.2015.03.018.
Khanzadeh-Moradllo, M., M. H. Meshkini, E. Eslamdoost, S. Sadati, and M. Shekarchi. 2015. “Effect of wet curing duration on long-term performance of concrete in tidal zone of marine environment.” Int. J. Concr. Struct. Mater. 9 (4): 487–498. https://doi.org/10.1007/s40069-015-0118-3.
Mangat, P. S., and B. T. Molloy. 1994. “Prediction of long term chloride concentration in concrete.” Mater. Struct. 27 (6): 338–346. https://doi.org/10.1007/BF02473426.
Narsilio, G. A., R. Li, P. Pivonka, and D. W. Smith. 2007. “Comparative study of methods used to estimate ionic diffusion coefficients using migration tests.” Cem. Concr. Res. 37 (8): 1152–1163. https://doi.org/10.1016/j.cemconres.2007.05.008.
National Climate Center. 2017a. “Meteorological data of Pinghu in Jiaxing, Zhejiang Province.” [In Chinese.] Accessed November 29, 2017. http://www.weatherr40d/101210305.shtml.
National Climate Center. 2017b. “Zhoushan meteorological bureau.” [In Chinese.] Accessed May 24, 2017. http://www.zs121.com.cn/default.aspx.
Nokken, M., A. Boddy, R. D. Hooton, and M. D. A. Thomas. 2006. “Time dependent diffusion in concrete—Three laboratory studies.” Cem. Concr. Res. 36 (1): 200–207. https://doi.org/10.1016/j.cemconres.2004.03.030.
Olsson, N., B. Lothenbach, V. Baroghel-Bouny, and L. O. Nilsson. 2018a. “Unsaturated ion diffusion in cementitious materials—The effect of slag and silica fume.” Cem. Concr. Res. 108 (Jun): 31–37. https://doi.org/10.1016/j.cemconres.2018.03.007.
Olsson, N., L. O. Nilsson, M. Åhs, and V. Baroghel-Bouny. 2018b. “Moisture transport and sorption in cement based materials containing slag or silica fume.” Cem. Concr. Res. 106 (Apr): 23–32. https://doi.org/10.1016/j.cemconres.2018.01.018.
Pack, S. W., M. S. Jung, H. W. Song, S. H. Kim, and K. Y. Ann. 2010. “Prediction of time dependent chloride transport in concrete structures exposed to a marine environment.” Cem. Concr. Res. 40 (2): 302–312. https://doi.org/10.1016/j.cemconres.2009.09.023.
Pang, L., and Q. W. Li. 2016. “Service life prediction of RC structures in marine environment using long term chloride ingress data: Comparison between exposure trials and real structure surveys.” Constr. Build. Mater. 113 (Jun): 979–987. https://doi.org/10.1016/j.conbuildmat.2016.03.156.
Petcherdchoo, A. 2013. “Time dependent models of apparent diffusion coefficient and surface chloride for chloride transport in fly ash concrete.” Constr. Build. Mater. 38 (Jan): 497–507. https://doi.org/10.1016/j.conbuildmat.2012.08.041.
Petcherdchoo, A. 2017. “Closed-form solutions for bilinear surface chloride functions applied to concrete exposed to deicing salts.” Cem. Concr. Res. 102 (Dec): 136–148. https://doi.org/10.1016/j.cemconres.2017.09.007.
Shafikhani, M., and S. E. Chidiac. 2019. “Quantification of concrete chloride diffusion coefficient: A critical review.” Cem. Concr. Compos. 99 (May): 225–250. https://doi.org/10.1016/j.cemconcomp.2019.03.011.
Shekarchi, M., A. Rafiee, and H. Layssi. 2009. “Long-term chloride diffusion in silica fume concrete in harsh marine climates.” Cem. Concr. Compos. 31 (10): 769–775. https://doi.org/10.1016/j.cemconcomp.2009.08.005.
Shi, X. M., N. Xie, K. Fortune, and J. Gong. 2012. “Durability of steel reinforced concrete in chloride environments: An overview.” Constr. Build. Mater. 30 (May): 125–138. https://doi.org/10.1016/j.conbuildmat.2011.12.038.
Song, H. W., C. H. Lee, and K. Y. Ann. 2008. “Factors influencing chloride transport in concrete structures exposed to marine environments.” Cem. Concr. Compos. 30 (2): 113–121. https://doi.org/10.1016/j.cemconcomp.2007.09.005.
Spiesz, P., and H. J. H. Brouwers. 2013. “The apparent and effective chloride migration coefficients obtained in migration tests.” Cem. Concr. Res. 48 (Jun): 116–127. https://doi.org/10.1016/j.cemconres.2013.02.005.
Stanish, K., and M. Thomas. 2003. “The use of bulk diffusion tests to establish time-dependent concrete chloride diffusion coefficients.” Cem. Concr. Res. 33 (1): 55–62. https://doi.org/10.1016/S0008-8846(02)00925-0.
Sun, Y. M., M. T. Liang, and T. P. Chang. 2012. “Time/depth dependent diffusion and chemical reaction model of chloride transportation in concrete.” Appl. Math. Modell. 36 (3): 1114–1122. https://doi.org/10.1016/j.apm.2011.07.053.
Tadayon, M. H., M. Shekarchi, and M. Tadayon. 2016. “Long-term field study of chloride ingress in concretes containing pozzolans exposed to severe marine tidal zone.” Constr. Build. Mater. 123 (Oct): 611–616. https://doi.org/10.1016/j.conbuildmat.2016.07.074.
Tang, L., and H. E. Sorensen. 2001. “Precision of the Nordic test methods for measuring chloride diffusion/migration coefficients of concrete.” Mater. Struct. 34 (8): 479–485. https://doi.org/10.1007/BF02486496.
Tang, L. P. 2008. “Engineering expression of the ClinConc model for prediction of free and total chloride ingress in submerged marine concrete.” Cem. Concr. Compos. 38 (8–9): 1092–1097. https://doi.org/10.1016/j.cemconres.2008.03.008.
Tang, L. P., and J. Gulikers. 2007. “On the mathematics of time-dependent apparent chloride diffusion coefficient in concrete.” Cem. Concr. Res. 37 (4): 589–595. https://doi.org/10.1016/j.cemconres.2007.01.006.
Van den Heede, P., M. De Keersmaecker, A. Elia, A. Adriaens, and N. De Belie. 2017. “Service life and global warming potential of chloride exposed concrete with high volumes of fly ash.” Cem. Concr. Compos. 80 (Jul): 210–223. https://doi.org/10.1016/j.cemconcomp.2017.03.020.
Wang, Y. Z., L. J. Wu, Y. C. Wang, Q. M. Li, and Z. Xiao. 2018. “Prediction model of long-term chloride diffusion into plain concrete considering the effect of the heterogeneity of materials exposed to marine tidal zone.” Constr. Build. Mater. 159 (Jan): 297–315. https://doi.org/10.1016/j.conbuildmat.2017.10.083.
Yi, S. Y., L. W. Fan, J. H. Fu, X. Xu, and Z. T. Yu. 2016. “Experimental determination of the water vapor diffusion coefficient of autoclaved aerated concrete (AAC) via a transient method: Effects of the porosity and temperature.” Int. J. Heat Mass Transfer 103 (Dec): 607–610. https://doi.org/10.1016/j.ijheatmasstransfer.2016.07.111.
Yu, Z. W., Y. Chen, P. Liu, and W. L. Wang. 2015. “Accelerated simulation of chloride ingress into concrete under drying-wetting alternation condition chloride environment.” Constr. Build. Mater. 93 (Sep): 205–213. https://doi.org/10.1016/j.conbuildmat.2015.05.090.
Zhang, J. Z., J. Guo, D. H. Li, Y. R. Zhang, F. Bian, and Z. F. Fang. 2017a. “The influence of admixture on chloride time-varying diffusivity and microstructure of concrete by low-field NMR.” Ocean Eng. 142 (Sep): 94–101. https://doi.org/10.1016/j.oceaneng.2017.06.065.
Zhang, J. Z., J. Zhao, Y. R. Zhang, Y. H. Gao, and Y. Y. Zheng. 2018. “Instantaneous chloride diffusion coefficient and its time dependency of concrete exposed to a marine tidal environment.” Constr. Build. Mater. 167 (Apr): 225–234. https://doi.org/10.1016/j.conbuildmat.2018.01.107.
Zhang, M. H., and H. Li. 2011. “Pore structure and chloride permeability of concrete containing nano-particles for pavement.” Constr. Build. Mater. 25 (2): 608–616. https://doi.org/10.1016/j.conbuildmat.2010.07.032.
Zhang, Y., and M. Z. Zhang. 2014. “Transport properties in unsaturated cement-based materials—A review.” Constr. Build. Mater. 72 (Dec): 367–379. https://doi.org/10.1016/j.conbuildmat.2014.09.037.
Zhang, Y., X. Y. Zhou, J. Zhao, H. X. Zhuang, Y. H. Gao, and Y. R. Zhang. 2019. “Time dependency and similarity of decay process of chloride diffusion in concrete under simulated marine tidal environment.” Constr. Build. Mater. 205 (Apr): 332–343. https://doi.org/10.1016/j.conbuildmat.2019.02.016.
Zhang, Y. R., H. X. Zhuang, J. L. Shi, J. Huang, and J. J. Zhang. 2017b. “Time-dependent characteristic and similarity of chloride diffusivity in concrete.” Mag. Concr. Res. 70 (3): 129–137. https://doi.org/10.1680/jmacr.17.00101.
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© 2020 American Society of Civil Engineers.
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Received: Jan 6, 2020
Accepted: Jul 20, 2020
Published online: Nov 30, 2020
Published in print: Feb 1, 2021
Discussion open until: Apr 30, 2021
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