Relation of Permeability by High Hydraulic Method and Chloride Ion Diffusion Coefficient of Concrete

Abstract:

Permeation length, permeation coefficient of water permeated into concrete and chloride ion diffusion coefficient of C30, C45 and C60 concrete were studied by high hydraulic method (0.5MPa~25MPa) and quick method of testing chloride ion diffusion respectively, and relationship of concrete permeability tested by two methods was analyzed too. High hydraulic method can distinguish permeability of concrete with different strength or air content and it is a quick and effective method to fast test and evaluating permeability of concrete. The results showed that high hydraulic method is applicable for evaluating permeability of concrete, with advantages of short testing period, easy operating and simple pretreatment of concrete specimens. Permeation coefficient or permeation length of water permeated into concrete exhibited linear relationship with chloride ion diffusion coefficient of concrete. It is applicable for evaluating permeability of concrete using quick method of testing chloride ion diffusion.

• Periodical: Key Engineering Materials (Volumes 405-406)
• Pages: 303-308
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.405-406.303
• Online since: January 2009
• Authors: Yong Ge, Jie Fan, Jie Yuan, Wen Cui Yang, Bao Sheng Zhang, Ji Shou Yu
• Keywords: Chloride Ion Diffusion Coefficient, Evaluating Method, High Hydraulic Method, Permeability

References

[1] Lu Xinying, Li Cuiling, Chen Meixia. Electricity evaluation of concrete permeability. China Concrete and Cement Products. 1999, (5): 12~14 (in Chinese).

[2] S. Erdogdu, I. L. Kondratova, T. W. Bremner. Determination of chloride Diffusion coefficient of concrete using open-circuit potential measurements. Cement and Concrete Research. 2004, 34: 603~609.

DOI: 10.1016/j.cemconres.2003.09.024

[3] Tang Luping and Lars-Ol of Nilsson. Rapid Determination of the Chloride Diffusivity in Concrete by Applying and Electrical Field. ACI Materials Journal. 1992, l9 (1): 49~53.

[4] Feldman R. F. Chan G. W. Brousseau R. J. and Tumidajski P. J. Investigation of the rapid chloride permeability test. ACI Materials Journal 1994, 91(2): 246~255.

[5] Li Cuiling, LuXinying, Zhang Haixia. Rapid test method for determining chloride diffusivities in cementicious materials. Industrial Construction. 1998, 28 (6): 41~43 (in Chinese).

[6] Cao Fang, Ma Baoguo, Li Youguo. The analysis on the concrete permeability and test methods. Concrete. 2002, (10): 15~17 (in Chinese).

[7] Caijun Shi. Effect of Mixing proportions of concrete on its electrica Conductivity and the rapid chloride permeability test. Cement and Concrete Research. 2004, 34: 537~545.

DOI: 10.1016/j.cemconres.2003.09.007