The Effects of Cations on Chloride Ingress and Hydroxide Levels in Concrete

International Concrete Abstracts Portal

The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.

  


Title: The Effects of Cations on Chloride Ingress and Hydroxide Levels in Concrete

Author(s): Neal Berke, Kyle Stanish, and Ali Inceefe

Publication: Symposium Paper

Volume: 366

Issue:

Appears on pages(s): 88-101

Keywords: chlorides, modeling, deicing salts, seawater, corrosion, concrete

DOI: 10.14359/51749235

Date: 10/1/2025

Abstract:
This paper demonstrates how a model that includes the chemical reactions in concrete, as well as the tortuosity of the concrete, can be used to predict the effects of cations on the ingress of chloride and changes in the hydroxide levels. Scenarios using low and high C3A cements exposed to NaCl, KCl, CaCl2, and MgCl2 are modeled. The predictions are compared to test data presented several years ago by Professor Hansson. The modeling provides a rapid means that can be used to assess both the salt and cement type on the corrosion susceptibility of embedded steel reinforcement in concrete.

Related References:

1. Samson E., Marchand J., Robert J.-L., Bournazel J.-P., Modelling Ion Diffusion Mechanisms in Porous Media, Int. J. for Num. Methods in Engineering, vol.46, pp.2043-2060 (1999).

2. Samson E., Marchand J., Beaudoin J.J., Describing Ion Diffusion Mechanisms in Cement-Based Materials Using the Homogenisation Technique, Cement and Concrete Research, vol.29, no.8, pp.1341-1345 (1999).

3. Samson E., Marchand J., Henocq P., Beausejour P., Recent Advances in the Determination of Ionic Diffusion Coefficients Using Migration Test Results, in RILEM Proceedings 58 – CONMOD 2008 (Delft, The Netherlands), E. Schlangen and G de Schutter eds., pp.65-78 (2008).

4. Byfors, K., Hansson, C.M., and Tritthart, Cement and Concrete Research, 16, pp. 760-770 (1986).

5. Hansson, C.M., Froelund,Th., and Markussen, J.B., Cement and Concrete Research, 15. pp. 65-73 (1985).

6. Tuutti, K., Nordic Concrete Research, No. 1 Paper 25 (1982).

7. Hansson, C.M. and Berke, N.S., Materials Research Society Symposium, 137, pp. 253-270 (1989).

8. Hausman, D.A., Steel Corrosion in Concrete, Materials Protection, 6(11) (1967).

9. Rasheeduzzafar, Dakhil, F.H., Saad Al-Gahtani,A., Al-Saadoun, S.S., and Bader, M.A., ACI Materials Journal, 87, pp. 114-122 (1990).