The Effect of Cracks on Chloride Penetration into Concrete


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This study is focused on examining the effect of critical crack width in combination with crack depth on chloride penetration into concrete. Because concrete structures have to meet a minimum service-life, critical crack width has become an important parameter. Specimens with different crack width / crack length have been subjected to rapid chloride migration testing (RCM). The results of this study show a critical crack width of about 0.012 mm. Cracks smaller than this critical crack width are considered not to have a significant influence on the rate of chloride transport inwards, while chloride penetration does proceed faster above this critical crack width.



Key Engineering Materials (Volumes 348-349)

Edited by:

J. Alfaiate, M.H. Aliabadi, M. Guagliano and L. Susmel




I. S. Yoon et al., "The Effect of Cracks on Chloride Penetration into Concrete ", Key Engineering Materials, Vols. 348-349, pp. 769-772, 2007

Online since:

September 2007




[1] NT Build 492: Concrete, Mortar and Cement-Based Repair Materials: Chloride Migration Coefficient from Non-Steady-State Migration Experiment.

[2] N. Gowripalan, V. Sirivivatnanon and C.C. Lim: Chloride Diffusivity of Concrete Cracked in Flexure, Cement and Concrete Research 30 (2000), pp.725-730.


[3] P.P. Win, M. Watanabe and A. Machida: Penetration Profile of Chloride Ion in Cracked Reinforced Concrete, Cement and Concrete Research 34 (2004), pp.1073-1079.


[4] M. Ismail, A. Toumi, R. François and R. Gagné: Effect of Crack Opening on the Local Diffusion of Chloride in Inert Materials, Cement and Concrete Research, 34 (2004) 711-716.


[5] TRB-AHD45: The Effect of Cracking in High Performance Concretes on Reinforcement Corrosion and Structural Durability, Transport Research Board, RPS-AHD45-2005-01, (2005).