Moisture dynamics in wall paintings monitored by single-sided NMR†

D. Oligschläger, S. Waldow, Agnes Haber, W. Zia, B.P. Blümich

    Research output: Contribution to journalArticle

    10 Citations (Scopus)

    Abstract

    Copyright © 2014 John Wiley & Sons, Ltd. The durability of historic wall paintings is highly dependent on environmental influences such as moisture ingress, salt crystallization and temperature changes. A fundamental understanding of dynamic transport processes in wall paintings is necessary to apply suitable conservation and restorationmethods to preserve such objects with high cultural value. Non-invasive, mobile-NMR techniques with single-sided sensors, such as the NMR-MOUSE®, enable to monitor the moisture content, transport and apparent diffusion constants in wall paintings.We investigated this technique by experiment andmodeling to correlate salt crystallization, moisture transport and local diffusion in wall-painting samples. Moreover, the influence of different painting techniques (fresco and secco) and conservation/consolidation methods on moisture transport and diffusion is discussed. The results are compared with results from field measurements on real fresco paintings in Casa del Salone Nero and the Villa of the Papyri, Herculaneum, Italy.
    Original languageEnglish
    Pages (from-to)48-57
    JournalMagnetic Resonance in Chemistry
    Volume53
    Issue number1
    DOIs
    Publication statusPublished - 2015

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