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The capability of one-sided access nuclear magnetic resonance (OSA-NMR) to charakterize the moisture distribution in building materials

 
: Wolter, B.; Kohl, F.; Krus, M.; Kehrer, M.

Kupfer, K. ; Deutsche Gesellschaft für Zerstörungsfreie Prüfung e.V. -DGZfP-, Berlin; Hochschule für Architektur und Bauwesen Weimar -HAB-, Materialforschungs- und -prüfanstalt -MFPA-; Bundesanstalt für Materialforschung und -prüfung -BAM-, Berlin:
Feuchtemessung - ein vielfälltiges Problem mit großen Perspektiven : 11. Feuchtetag 2002 in Weimar. Vorträge, Poster, Geräteausstellung, 18./19. September 2002
Weimar: MFPA, 2002
S.59-66
Feuchtetag <11, 2002, Weimar>
Englisch
Konferenzbeitrag
Fraunhofer IZFP ()
One-Sided Access (OSA NMR); nuclear magnetic resonance (NMR); y-ray absorption; moisture; Sandstein; sandstone

Abstract
The aim of this study was to investigate the capability of one-sided access nuclear magnetic resonance (OSA-NMR) to determine the one-dimensional moisture distribution in diverse building materials. In order to verify the moisture depth-profiles measured with OSA-NMR, we compared them with the results of well-established laboratory methods for moisture distribution mapping. Several samples of natural sandstones and lime silica brick were moistened and partially re-dried. Moisture depth-profile measurements have been performed by using three different methods, namely OSA-NMR, conventional magnetic resonance imaging (MRI) and g-ray absorption.

: http://publica.fraunhofer.de/dokumente/N-14973.html