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Author(s):	Nebel, Holger; Vollpracht, Anya; Brameshuber, Wolfgang
Title:
Abstract:	Die Umweltverträglichkeit von Putzen und Mörteln in der Nutzungsphase ist ein wissenschaftlich bislang wenig untersuchtes Thema. Das Institut für Bauforschung (ibac) der RWTH Aachen University hat das Auslaugverhalten von drei Putzen und einem Mauermörtel durch Langzeitstandtests, Labortauchverfahren und bei künstlicher Beregnung im Labor untersucht. Diese Ergebnisse wurden Ergebnissen des Fraunhofer-Instituts für Bauphysik (IBP) in Holzkirchen gegenübergestellt, welches mit den gleichen Putzen und Mörteln einen mehrjährigen Freilandversuch durchgeführt hat. Der Vergleich der Ergebnisse zeigt, dass es nicht immer möglich ist, ein worst-case-Szenario vorherzusagen. Welches Prüfverfahren das ungünstigste ist, hängt von dem jeweiligen Baustoff ab. Leaching behaviour of renderings and masonry mortars. The environmental compatibility of renderings and mortars in the utilisation phase is a scientific theme which is so far poorly investigated. The Institute of Building Materials Research (ibac) of the RWTH Aachen University has investigated the leaching behaviour of three renderings and one masonry mortar by conducting long term tank tests, laboratory immersion method and artificial irrigation in the laboratory. The results of the laboratory experiments were compared to several years lasting outdoor experiments of the Fraunhofer-Institute for Building Physics (IBP) at Holzkirchen. The comparison of the results shows that it is not always possible to predict the worst-case, which depends on the building material properties.
Source:	Mauerwerk 16 (2012), No. 1
Page/s:	2-9
Language of Publication:	German

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