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Abstract:	In diesem Beitrag werden Betrachtungen zur Korrosion von Anschweißankern aus nichtrostendem Stahl der Werkstoff-Nr. 1.4571 bei Naturwerksteinfassaden angestellt. Weiterhin werden Ergebnisse korrosionstechnischer Untersuchungen an derartigen Ankern aus bestehenden, bis zu 23 Jahre alten Bauwerken wiedergegeben. Bei sachgerechter Interpretation der dargestellten Zusammenhänge kann gefolgert werden, dass die im Regelwerk geforderten Maßnahmen zur grundsätzlichen Entfernung von Anlauffarben und zum Verschließen von Spalten bei atmosphärisch beanspruchten geschweißten Verbindungen im Fall der hinterlüfteten Außenwandbekleidungen aus Sicht der Korrosion technisch nicht begründet und unnötig sind. Corrosion behaviour of stainless steel weld-on anchors of claddings for external walls ventilated at the rear and made of natural stone. In the contribution considerations are made about the corrosion of stainless steel weld-on anchors of the material No. 1.4571 of claddings for external walls ventilated at the rear. Furthermore, results of corrosiontechnical investigations on such anchors of buildings which are up to 23 years old are reported. With proper interpretation of the shown connections it must necessarily be concluded that the measures in the set of rules concerning the removal of temper colours and the closing of crevices of atmospherically exposed weld-on anchors are technically not founded and unnecessary from the corrosion point of view if ventilated facades are taken into consideration.
Source:	Bautechnik 87 (2010), No. 7
Page/s:	373-382
Language of Publication:	German

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