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Home > Publications > 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: Accelerated Testing of Chloride Diffusivity in Cement Based Materials: New Test Operating Mode
Author(s): A.B. Ammar, J.M. Loche and
Publication: Special Publication
Appears on pages(s): 587-604
Keywords: absorption; chlorides; conductivity; diffusion; double layer; electrical
Abstract:Penetration of aggressive ions, such as chlorides, through concrete is one of the factors which causes to the depassivation of reinforcement and therefore may shorten the service life of a reinforced concrete structure. Most research work focusing on natural or accelerated diffusion tests generally rely on the validity of Fick’s laws. In this paper, we present both a new accelerated diffusion cell and an original test operating mode. The theoretical approach is based upon the study of diffusion-migration mechanism within the pore solution. The experimental results presented here have been obtained with tests on samples of saturated mortar.
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