LABORATORY STUDY ON THE TEMPERATURE DEPENDENCE OF CHLORIDE TRANSPORT IN CONCRETE

Author(s): Y. Liu and F. Presuel-Moreno
Paper category: Proceedings
Book title: Proceedings of CONSEC13 Seventh International Conference on Concrete under Severe Conditions - Environment and Loading Volume I
Editor(s): Z.J. Li, W. Sun, C.W. Miao, K.Sakai, O.E. Gjørv, N.Banthia
ISBN: 978-2-35158-124-7
e-ISBN: 978-2-35158-134-6
Publisher: RILEM Publications SARL
Publication year: 2013
Pages: 399-406
Total Pages: 961
Language : English

Abstract: This investigation presents results of temperature effect on chloride ion transport in concrete. Rapid Chloride Migration (RCM) test was performed at around 10°C, 23°C, 30°C and 40°C on concrete with similar resistivity (hence, also similar diffusivity) values. Arrhenius law was employed to calculate activation energy (Ea) for non-steady-state migration coefficients (Dnssm). It was found that the value of activation energy for migration coefficient is dependent on the intrinsic diffusivity properties of the concrete. Based on the developed correlation between Dnssm and Ea from experimental results, it is possible to provide a more precise method to predict the temperature effect on chloride ion transport in concrete.

Online publication : 2013
Publication type : full_text
Public price (Euros) : 0.00