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Materials and Structures
Article . 2001 . Peer-reviewed
License: Springer TDM
Data sources: Crossref
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Non-steady-state chloride diffusion coefficients obtained from migration and natural diffusion tests. Part II: Different experimental conditions. Joint relations

Authors: Castellote, Marta; Andrade Perdrix, Carmen; Alonso, M. Cruz;

Non-steady-state chloride diffusion coefficients obtained from migration and natural diffusion tests. Part II: Different experimental conditions. Joint relations

Abstract

[FR] La complexité des procédures de pénétration des chlorures dans le béton rend difficile la définition d'une procédure normalisée pour le calcul des coefficients de diffusion. Cette étude tente de trouver des relations entre les coefficients de diffusion qui ont été calculés selon différentes méthodes. La première étape consiste à trouver une relation expérimentale qui permettra la conversion des coefficients de diffusion calculés selon n'importe quelle méthodologie, vers une condition de référence (0.5 M NaCl et une durée de 90 jours pour cette expérience). Cette relation rend possible la comparaison entre les différents coefficients de diffusion du régime non-stationnaire. Dans une deuxième étape, l'équivalence entre les essais de migration et de diffusion naturelle a été entreprise à partir de différents essais de migration en régimes stationnaire et non-stationnaire. Les relations obtenues ont été validées par les données de diffusion naturelle. Les résultats finaux sont présentés sous forme graphique pour en faciliter l'utilisation.

[EN] The complexity of the process of chloride penetration in concrete makes it difficult to define a standard procedure in order to calculate diffusion coefficients. In this paper, an attempt to find joint relations between coefficients calculated from different procedures is made. As a first step, an empirical relation, that allows the conversion of a diffusion coefficient calculated from any experimental conditions to a reference condition (0.5 M NaCl and 90 days of duration of the test), has been developed and validated with different natural diffusion tests. This relation enables the comparison between different non-steady-state diffusion coefficients. As a second step, the equivalence between migration and natural diffusion tests has been undertaken from different series of migration tests, in steady and nonsteady-state, conditions. The final results have been presented in a graphical form in order to facilitate their application.

Peer reviewed

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Keywords

Coefficients calculated, Chloride penetration

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selected citations
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This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
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