Abstract
In this study, the mathematical modelling of chloride penetration into concrete structures is suggested to consider two main phenomena: 1) chloride penetration through the pore solution and 2) the distribution of the total chloride content in concrete. In this model, the chloride binding capacity was taken into account and the diffusivity was considered as a function of depth, age, and temperature. Some parameters, such as changes in surface concentration and temperature, degree of hydration, pore content, and binder content in concrete were also taken into consideration. The intrinsic diffusion coefficient, which can be determined by using a rapid method developed at the Chalmers University of Technology, was introduced into the model.
A number of specimens from the laboratory and the field, aged from one year up to thirty-seven years, were tested. The predicted results are fairly close to the real chloride penetration profiles.
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References
Tang, L. and Nilsson, L-O.(1993) Chloride binding capacity and binding isotherms of OPC pastes and mortars, Cement and Concrete Research, 23(2), 347–353.
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© 1996 Springer Science+Business Media Dordrecht
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Tang, L., Nilsson, LO. (1996). A Numerical Method for Prediction of Chloride Penetration into Concrete Structures. In: Jennings, H., Kropp, J., Scrivener, K. (eds) The Modelling of Microstructure and its Potential for Studying Transport Properties and Durability. NATO ASI Series, vol 304. Springer, Dordrecht. https://doi.org/10.1007/978-94-015-8646-7_29
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DOI: https://doi.org/10.1007/978-94-015-8646-7_29
Publisher Name: Springer, Dordrecht
Print ISBN: 978-90-481-4653-6
Online ISBN: 978-94-015-8646-7
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