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Contour Scaling on Building Facades - Dependence on Stone Type and Environmental Conditions

Published online by Cambridge University Press:  28 February 2011

Eberhard Wendler ,
Dietrich D. Klemm  and
Rolf Snethlage
Eberhard Wendler
Affiliation:
Geological Institute of theLudwig-Maximilians-University, Luisenstraje 37, D-8000 Munich 2, Federal Republic of Germany
Dietrich D. Klemm
Affiliation:
Geological Institute of theLudwig-Maximilians-University, Luisenstraje 37, D-8000 Munich 2, Federal Republic of Germany
Rolf Snethlage
Affiliation:
Bavarian State Conservation Office, Central Laboratory, Luisenstraβe 37, D-8000 Munich 2, Federal Republic of Germany
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Abstract

Contour scaling is often observed on building facades, especially built from clay-rich sandstones. The paper shows that a soluble salt enriched zone and a decrease of the flexural strength below the stone surface can be detected even if a damage is not yet visible. A computer simulated wetting-drying process demonstrates that the mean humidity maximum is situated below the surface. Its depth coincides with the depth of the salt maximum and strenth minimum.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 185: Symposium G – Materials Issues in Art and Archaeology II , 1990 , 265
Copyright
Copyright © Materials Research Society 1990

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References

1. Sattler, L., Snethlage, R. in Durability of Consolidation Treatments with Silicic Acid Esters, edited by Marinos, P.G. and Koukis, G.C. (Proc. Intern. Symp. Geol. Soc., Athens, 19.-23.sept. 1988) pp. 953–956.Google Scholar
2. Krus, M., Kieβl, K., IBP-Mitteilung 16, Nr.175 (1989).Google Scholar