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Comparative study of probabilistic modeling approaches for chloride ingress in concrete structures with macro‐cracks

Schultheiß, Annika Lidwina ORCID iD icon 1; Patel, Ravi A. 1; Vogel, Michael 1; Dehn, Frank 1
1 Institut für Massivbau und Baustofftechnik (IMB), Karlsruher Institut für Technologie (KIT)

Abstract:

Probabilistic service life analyses for assessing the risk of chloride-induced corrosion in uncracked concrete are often realized using the well-known chloride ingress model of the fib Model Code for Service Life Design. In practice, however, concrete includes cracks, which alter the resistance of the concrete against the chloride ingress. In the past, different approaches to account for preexisting cracks, were developed. In this study, these modeling approaches are summarized and compared in context of the probabilistic service life prognosis. Furthermore, a new approach to account for cracks by theoretically adapting the convection zone is presented. This study demonstrates that the choice of model extension to account for cracks vastly influences the prediction results and shows the limits of application of the current extensions.


Verlagsausgabe §
DOI: 10.5445/IR/1000149121
Veröffentlicht am 28.07.2022
Originalveröffentlichung
DOI: 10.1002/suco.202200069
Scopus
Zitationen: 7
Web of Science
Zitationen: 7
Dimensions
Zitationen: 7
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Massivbau und Baustofftechnik (IMB)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2022
Sprache Englisch
Identifikator ISSN: 1464-4177, 1751-7648
KITopen-ID: 1000149121
Erschienen in Structural Concrete
Verlag Wiley-VCH Verlag
Band 24
Heft 1
Seiten 345-358
Vorab online veröffentlicht am 23.05.2022
Nachgewiesen in Scopus
Dimensions
Web of Science
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