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Experimental methods for the analysis of the durability behavior of concrete joints

Höffgen, Jan P. ORCID iD icon 1; Mohs, Matthias 1; Lamparter, Sarah 1; Malárics-Pfaff, Viktória; Dehn, Frank 1
1 Institut für Massivbau und Baustofftechnik (IMB), Karlsruher Institut für Technologie (KIT)

Abstract:

This article addresses the applicability of experimental methods for the evaluation of concrete durability on localized structural weaknesses posed by joints. Three different types of exposure are analyzed: chloride penetration, carbonation, and freeze–thaw attack. First, established experimental methods for the characterization of the durability of plain concrete are presented and their general applicability on concrete joints is discussed. The experimental program focuses on the execution of selected tests on laboratory specimens with and without joints. Indicator tests for both chloride penetration and carbonation are generally feasible, but require attention to specimen preparation. Rapid chloride migration yielded inconclusive results, while uniaxial chloride diffusion coefficient of concrete joints cannot be determined because of the areal extent of profile grinding. For the same reason, the characterization of the resistance to freeze–thaw cycles through surface deterioration is not applicable for concrete joints. The structural damage was instead successfully qualified through direct tension tests.


Verlagsausgabe §
DOI: 10.5445/IR/1000151815
Veröffentlicht am 04.11.2022
Originalveröffentlichung
DOI: 10.1002/suco.202200204
Scopus
Zitationen: 2
Dimensions
Zitationen: 2
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: 1000151815
Erschienen in Structural Concrete
Verlag Wiley-VCH Verlag
Band 24
Heft 1
Seiten 423-433
Vorab online veröffentlicht am 06.10.2022
Nachgewiesen in Web of Science
Dimensions
Scopus
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