Title:
Chloride Profiles in Carbonated Concrete
Author(s):
Yoshiki Tanaka
Publication:
Materials Journal
Volume:
119
Issue:
1
Appears on pages(s):
3-13
Keywords:
carbonation; diffusion in composite; efflux; fitting; partially carbonated zone; porosity; saturation; seasonal variation; tortuosity
DOI:
10.14359/51733144
Date:
1/1/2022
Abstract:
In a deeply carbonated concrete deck under field exposure at the coast, chloride profiles in a carbonated layer were complex, and its diffusivity seemed to be markedly different from that in a noncarbonated layer. This paper discusses what the profiles mean. First, the study attempted to determine both apparent diffusion coefficients of chloride ions in the noncarbonated and carbonated layers by fitting. Then, the fast ion transfer in the carbonated layer was recognized. In addition, it was found that the complex chloride
profiles cannot be well expressed by the theoretical or numerical solutions for a composite medium consisting of the layers as far as the surface chloride content is assumed to be constant. Subsequently, the influence of a seasonal variation in the surface chloride content upon the profile was examined. The results show that the complex chloride profiles should happen due to the high diffusivity in the carbonated layer under the variable surface chloride content, suggesting that the chloride ions run out from the carbonated surface easier.
Related References:
1. Collepardi, M.; Marcialis, A.; and Turriziani, R., “Penetration of Chloride Ions into Cement Pastes and Concretes,” Journal of the American Ceramic Society, V. 55, No. 10, Oct. 1972, pp. 534-535. doi: 10.1111/j.1151-2916.1972.tb13424.x
2. Goto, S.; Tsunetani, M.; Yanagida, H.; and Kondo, R., “Diffusion of Chlorine Ion in Hardened Cement Paste,” Journal of the Ceramic Association, Japan, V. 87, No. 1003, 1979, pp. 126-133. (in Japanese) doi: 10.2109/jcersj1950.87.1003_126
3. Browne, R. D., “Mechanisms of Corrosion of Steel in Concrete in Relation to Design, Inspection, and Repair of Offshore and Coastal Structures,” Performance of Concrete in Marine Environment,” SP-65, V. M. Malhotra, ed., American Concrete Institute, Farmington Hills, MI, Aug. 1980, pp. 169-204.
4. Claisse, P. A.; El-Sayad, H. I.; and Shaaban, I. G., “Permeability and Pore Volume of Carbonated Concrete,” ACI Materials Journal, V. 96, No. 3, May-June 1999, pp. 378-381.
5. Puatatsananon, W., and Saouma, V. E., “Nonlinear Coupling of Carbonation and Chloride Diffusion in Concrete,” Journal of Materials in Civil Engineering, ASCE, V. 17, No. 3, June 2005, pp. 264-275. doi: 10.1061/(ASCE)0899-1561(2005)17:3(264)
6. Yoon, I.-S., “Simple Approach for Computing Chloride Diffusivity of (Non)Carbonated Concrete,” Key Engineering Materials, V. 385-387, July 2008, pp. 281-284. doi: 10.4028/www.scientific.net/KEM.385-387.281
7. Delnavaz, A., and Ramezanianpour, A. A., “The Assessment of Carbonation Effect on Chloride Diffusion in Concrete Based on Artificial Neural Network Model,” Magazine of Concrete Research, V. 64, No. 10, Oct. 2012, pp. 877-884. doi: 10.1680/macr.11.00059
8. Aoyama, M.; Ishikawa, Y.; Takeuchi, M.; and Kawamura, M., “Characteristic of the Chloride Ion Penetrability into the Carbonated Concrete Road Structures,” Proceedings of the Japan Concrete Institute, V. 33, No. 1, July 2011, pp. 809-814. (in Japanese)
9. Jin, M.; Gao, S.; Jiang, L.; Chu, H.; Lu, M.; and Zhi, F. F., “Degradation of Concrete with Addition of Mineral Admixture due to Free Chloride Ion Penetration under the Effect of Carbonation,” Corrosion Science, V. 138, July 2018, pp. 42-53. doi: 10.1016/j.corsci.2018.04.004
10. Patel, R. G.; Parrott, L. J.; Martin, J. A.; and Killoh, D. C., “Gradients of Microstructure and Diffusion Properties in Cement Paste Caused by Drying,” Cement and Concrete Research, V. 15, No. 2, Mar. 1985, pp. 343-356. doi: 10.1016/0008-8846(85)90046-8
11. Saeki, T.; Ohga, H.; and Nagataki, S., “Mechanism of Carbonation and Prediction of Carbonation Process of Concrete,” Journal of JSCE, V. 1990, No. 414, Aug. 1990, pp. 99-108. (in Japanese)
12. Ngala, V. T., and Page, C. L., “Effects of Carbonation on Pore Structure and Diffusional Properties of Hydrated Cement Pastes,” Cement and Concrete Research, V. 27, No. 7, July 1997, pp. 995-1007. doi: 10.1016/S0008-8846(97)00102-6
13. Dhir, R. K.; Jones, M. R.; and McCarthy, M. J., “PFA Concrete: Chloride Ingress and Corrosion in Carbonated Cover,” Proceedings of the Institution of Civil Engineers – Structures and Buildings, V. 99, No. 2, May 1993, pp. 167-172. doi: 10.1680/istbu.1993.23375
14. Wierig, H. J., and Langkamp, H., “The Penetration of Chlorides in Uncarbonated and Carbonated Concrete,” ZKG International, Zement-Kalk-Gips, V. 48, No. 3, Mar. 1995, pp. 184-192.
15. Yoon, I.-S., “Deterioration of Concrete due to Combined Reaction of Carbonation and Chloride Penetration: Experimental Study,” Key Engineering Materials, V. 348-349, Sept. 2007, pp. 729-732. doi: 10.4028/www.scientific.net/KEM.348-349.729
16. Lee, M. K.; Jung, S. H.; and Oh, B. H., “Effects of Carbonation on Chloride Penetration in Concrete,” ACI Materials Journal, V. 110, No. 5, Sept.-Oct. 2013, pp. 559-566.
17. Kuosa, H.; Ferreira, R. M.; Holt, E.; Leivo, M.; and Vesikari, E., “Effect of Coupled Deterioration by Freeze-Thaw, Carbonation and Chlorides on Concrete Service Life,” Cement and Concrete Composites, V. 47, Mar. 2014, pp. 32-40. doi: 10.1016/j.cemconcomp.2013.10.008
18. Wang, Y.; Nanukuttan, S.; Bai, Y.; and Basheer, P. A. M., “Influence of Combined Carbonation and Chloride Ingress Regimes on Rate of Ingress and Redistribution of Chlorides in Concretes,” Construction and Building Materials, V. 140, June 2017, pp. 173-183. doi: 10.1016/j.conbuildmat.2017.02.121
19. Liu, J.; Qiu, Q.; Chen, X.; Xing, F.; Han, N.; He, Y.; and Ma, Y., “Understanding the Interacted Mechanism between Carbonation and Chloride Aerosol Attack in Ordinary Portland Cement Concrete,” Cement and Concrete Research, V. 95, May 2017, pp. 217-225. doi: 10.1016/j.cemconres.2017.02.032
20. Malheiro, R.; Camões, A.; and Meira, G., “Behaviour of Concrete under Severe Environment - Effect of Carbonation on the Chloride Diffusion Coefficient from Non-Steady-State Migration Test,” Romanian Journal of Materials, V. 48, No. 1, 2018, pp. 64-69.
21. Li, K.; Zhang, Y.; Wang, S.; and Zeng, J., “Impact of Carbonation on the Chloride Diffusivity in Concrete: Experiment, Analysis and Application,” Materials and Structures, V. 51, No. 6, Dec. 2018, Article No. 164, 15 pp.
22. Goto, S., and Roy, D. M., “Diffusion of Ions through Hardened Cement Pastes,” Cement and Concrete Research, V. 11, No. 5-6, Sept.-Nov. 1981, pp. 751-757. doi: 10.1016/0008-8846(81)90033-8
23. Zhang, T., and Gjørv, O. E., “Diffusion Behavior of Chloride Ions in Concrete,” Cement and Concrete Research, V. 26, No. 6, June 1996, pp. 907-917. doi: 10.1016/0008-8846(96)00069-5
24. Kobayashi, K.; Suzuki, K.; and Uno, Y., “Carbonation of Concrete Structures and Decomposition of C-S-H,” Cement and Concrete Research, V. 24, No. 1, 1994, pp. 55-61. doi: 10.1016/0008-8846(94)90082-5
25. Elakneswaran, Y.; Nawa, T.; and Kurumisawa, K., “Electrokinetic Potential of Hydrated Cement in Relation to Adsorption of Chlorides,” Cement and Concrete Research, V. 39, No. 4, Apr. 2009, pp. 340-344. doi: 10.1016/j.cemconres.2009.01.006
26. Bažant, Z. P., “Physical Model for Steel Corrosion in Concrete Sea Structures—Theory,” Journal of the Structural Division, ASCE, V. 105, No. 6, June 1979, pp. 1137-1153. doi: 10.1061/JSDEAG.0005168
27. Maruya, T.; Tangtermsirikul, S.; and Matsuoka, Y., “Simulation of Chloride Penetration into Hardened Concrete,” Proceedings of Third CANMET, SP-145, V. M. Malhotra, ed., American Concrete Institute, Farmington Hills, MI, 1994, pp. 519-538.
28. Maekawa, K., and Ishida, T., “Modeling of Structural Performances under Coupled Environmental and Weather Actions,” Materials and Structures, V. 35, No. 10, Dec. 2002, pp. 591-602. doi: 10.1007/BF02480352
29. Saeki, T.; Ueki, S.; and Shima T., “A Model for Predicting the Deterioration Process of Concrete due to the Compound Interaction of Salt Damage and Carbonation,” Journal of JSCE, V. 54, No. 697, Feb. 2002, pp. 131-142. (in Japanese)
30. Zhu, X.; Zi, G.; Cao, Z.; and Cheng, X., “Combined Effect of Carbonation and Chloride Ingress in Concrete,” Construction and Building Materials, V. 110, May 2016, pp. 369-380. doi: 10.1016/j.conbuildmat.2016.02.034
31. Tanaka, Y.; Kimura, Y.; Murakoshi, J.; and Honma, H., “Experimental Study on Chloride Migration in Carbonated Layer of Concrete,” Proceedings of the Japan Concrete Institute, V. 36, No. 1, July 2014, pp. 1006-1011. (in Japanese)
32. Ishida, M., and Tanaka, Y., “Study on Chloride Ingress into Carbonated Concrete - Field Exposure and Chloride Ponding Tests,” Technical Note of PWRI, No. 4397, March 2020, 46 pp. (in Japanese)
33. Tanaka, Y., “Influence of Chlorides on Durability of Concrete Elements in Highway Bridges,” dissertation, Tokyo Institute of Technology, Tokyo, Japan, July 2019, 206 pp. (in Japanese)
34. Suzuki, K.; Nishikawa, T.; Yamade, Y.; and Taniguchi, I., “Analysis of Hydrated Phases for Evaluating the Durability of Concrete,” Concrete Research and Technology, V. 1, No. 2, 1990, pp. 39-49. doi: 10.3151/crt1990.1.2_39 (in Japanese)
35. Houst, Y. F., and Wittmann, F. H., “Depth Profiles of Carbonates Formed during Natural Carbonation,” Cement and Concrete Research, V. 32, No. 12, Dec. 2002, pp. 1923-1930. doi: 10.1016/S0008-8846(02)00908-0
36. Carslaw, H. S., and Jaeger, J. C., Conduction of Heat in Solids, second edition, Oxford University Press, Oxford, UK, 1959, 517 pp.
37. Crank, J., The Mathematics of Diffusion, first edition, Oxford University Press, Oxford, UK, 1956, 347 pp.
38. Saetta, A. V.; Scotta, R. V.; and Vitaliani, R. V., “Analysis of Chloride Diffusion into Partially Saturated Concrete,” ACI Materials Journal, V. 90, No. 5, Sept.-Oct. 1993, pp. 441-451.
39. Akita, H., and Fujiwara, T., “Water and Salt Movement within Mortar Partially Submerged in Salty Water,” Concrete Under Severe Conditions: Environment and loading, O. E. Gjørv, K. Sakai, N. Banthia, eds., V. 1, CRC Press, Boca Raton, FL, 1995, pp.645-654.
40. Katto, Y., Dennetsu Gairon (The Isagoge of Heat Transfer), eighth edition, Yokendo, Tokyo, Apr. 1971, 453 pp. (in Japanese)
41. Daimon, M.; Akiba, T.; and Kondo, R., “Through Pore Size Distribution and Kinetics of the Carbonation Reaction of Portland Cement Mortar,” Journal of the American Ceramic Society, V. 54, No. 9, 1971, pp. 423-428. doi: 10.1111/j.1151-2916.1971.tb12379.x
42. Sharif, A.; Loughlin, K. F.; Azad, A. K.; and Navaz, C. M., “Determination of the Effective Chloride Diffusion Coefficient in Concrete via a Gas Diffusion Technique,” ACI Materials Journal, V. 94, No. 3, May-June 1997, pp. 227-233.
43. Ahmad, S.; Azad, A. K.; and Loughlin, K. F., “A Study of Permeability and Tortuosity of Concrete,” Proceedings of the 30th Conference on Our World in Concrete & Structures, Singapore, Aug. 2005, 8 pp.
44. Ahmad, S.; Azad, A. K.; and Loughlin, K. F., “Effect of the Key Mixture Parameters on Tortuosity and Permeability of Concrete,” Journal of Advanced Concrete Technology, V. 10, No. 3, 2012, pp. 86-94. doi: 10.3151/jact.10.86
45. Promentilla, M. A. B.; Sugiyama, T.; Hitomi, T.; and Takeda, N., “Quantification of Tortuosity in Hardened Cement Pastes using Synchrotron-Based X-Ray Computed Microtomography,” Cement and Concrete Research, V. 39, No. 6, June 2009, pp. 548-557. doi: 10.1016/j.cemconres.2009.03.005
46. Ranachowski, Z.; Jóźwiak-Niedźwiedzka, D.; Ranachowski, P.; Dąbrowski, M.; Kudela, S. Jr.; and Dvorak, T., “The Determination of Diffusive Tortuosity in Concrete Specimens Using X-Ray Microtomography,” Archives of Metallurgy and Materials, V. 60, No. 2, 2015, pp. 1115-1119. doi: 10.1515/amm-2015-0140
47. Guimarães, A. T. C.; Climent, M. A.; de Vera, G.; Vicente, F. J.; Rodrigues, F. T.; and Andrade, C., “Determination of Chloride Diffusivity through Partially Saturated Portland Cement Concrete by a Simplified Procedure,” Construction and Building Materials, V. 25, No. 2, Feb. 2011, pp. 785-790. doi: 10.1016/j.conbuildmat.2010.07.005
48. Tanaka, Y.; Fujita, M.; Cheong, H.; Watanabe, H.; and Kawano, H., “Chloride Permeability of High-Strength Concrete,” Proceedings of the First fib Congress, Osaka, Japan, V. 6, Oct. 2002, pp. 145-154.
49. Tang, L., and Nilsson, L.-O., “A Numerical Method for Prediction of Chloride Penetration into Concrete Structures,” The Modelling of Microstructure and Its Potential for Studying Transport Properties and Durability, H. Jennings, J. Kropp, K. Scrivener, eds., NATO ASI Series, V. 304, Springer, Dordrecht, the Netherlands, 1996, pp. 539-552.
50. Fujiwara, M.; Minosaku, K.; and Tanaka, Y., “Nationwide Survey on Airborne Chlorides III – Measured Data,” Technical Note of PWRI, No. 2687, Dec. 1988, 266 pp. (in Japanese)
51. Hong, K., and Hooton, R. D., “Effects of Fresh Water Exposure on Chloride Contaminated Concrete,” Cement and Concrete Research, V. 30, No. 8, Aug. 2000, pp. 1199-1207. doi: 10.1016/S0008-8846(00)00335-5