Dokument-ID Dokumenttyp Autoren/innen Persönliche Herausgeber/innen Haupttitel Abstract Auflage Verlagsort Verlag Herausgeber (Institution) Erscheinungsjahr Titel des übergeordneten Werkes Jahrgang/Band ISBN Veranstaltung Veranstaltungsort Beginndatum der Veranstaltung Enddatum der Veranstaltung Ausgabe/Heft Erste Seite Letzte Seite URN DOI Lizenz Datum der Freischaltung OPUS4-52975 Zeitschriftenartikel Boschmann Käthler, C.; Ebell, Gino; Keßler, S.; Schiegg, Y,; Dauberschmidt, C.; Angst, U. M. A comparison of methods to assess the resistance of reinforcing steel against chloride-induced corrosion in concrete - Particular consideration of 12% chromium steel The critical chloride content C(crit) is an indicator for the corrosion resistance of reinforcing steels in concrete. In this article, several experimental methods for determining the critical chloride content C(crit) of mild and an alloyed (12% Cr) steel in cementitious materials are compared. The methods used include accelerated polarization tests and tests using more natural (unpolarized) conditions in which chloride ingress occurs by diffusion and capillary uptake. The advantages and disadvantages of the methods are discussed, in particular, with the objective of reaching a compromise between applicability to practice and feasibility in laboratory testing. Weinheim Wiley-VCH 2022 Materials and corrosion 73 3 306 325 urn:nbn:de:kobv:b43-529751 10.1002/maco.202112826 https://creativecommons.org/licenses/by-nc/4.0/deed.de 2021-07-21 OPUS4-50986 Zeitschriftenartikel Boschmann Käthler, C.; Angst, U.; Ebell, Gino; Elsener, B. Chloride-induced reinforcement corrosion in cracked concrete: the influence of time of wetness on corrosion propagation Literature data on the influence of concrete cracks on corrosion propagation of reinforcing steel are contradictory. This might be due to very different exposure and test conditions but also to a lack of time-resolved data in cyclic wetting-drying exposure. Here, the influence of the environmental conditions on the corrosion rates in cracked concrete is studied experimentally. The results show that the corrosion rate in cracked concrete depends on the duration of wetting and drying phases and the relative humidity (RH) during the drying phase. The lower the ambient RH in the drying phase, the faster the cracks dry, which depresses the corrosion rate in the periods between the wetting events. A model is proposed to estimate corrosion rates in cracked concrete cyclic wetting/drying exposure. London Taylor Francis Online 2020 Corrosion Engineering, Science and Technology 1 11 10.1080/1478422X.2020.1789371 2020-07-08