Complex resistivity and radar investigation of building material: First results of field scale measurements |
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| Authors: | Sabine Kruschwitz Ernst Niederleithinger Christiane Trela Jens Wöstmann |
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| Institution: | (1) Research Unit CdSM—“Assessment of monumental buildings”, IUAV University of Venice, Dorsoduro 2206, 30123 Venice, Italy; |
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| Abstract: | Moisture ingress is one of major damaging factors for masonry buildings. As the complex resistivity (CR) is sensitive to textural
properties as well as to the pore fluid chemistry of wet porous media, its non-destructive application can provide helpful
information for conservators. In a comprehensive laboratory study it has been shown that CR might even be able to distinguish
between salt content and saturation degree in only one measurement. The combined use of electrical and electromagnetic measurement
techniques in two field-scale flooding experiments has shown some unexpected differences. Possible reasons are discussed and
it is shown that bringing together the information of both methods leads to a clearer picture. |
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