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

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.