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  • In-situ study of the consolidation of wall paintings using commercial and newly developed consolidants
    Pondelak, Andreja ...
    This paper presents a comparison of consolidant effectiveness for a newly developed consolidant based on soluble calcium compound calcium acetoacetate and two nano-lime-based consolidants available ... on the market, i.e., CaLoSiL E15 and Nanorestore. Impressionist wall paintings made using the fresco technique in the Franciscan Church in Ljubljana were selected for in-situ studies. In order to monitor the colour differences and consolidation effectiveness before, and a few months after, the application of the consolidants, different non-destructive and micro-destructive methods were used. The colour differences were assessed visually and using spectrophotometry, while the consolidation effectiveness was monitored using three methods: the ultrasound velocity method, the surface hardness method and the DRMS method. We demonstrated the best recovery in terms of mechanical properties and with a negligible effect on the wall paintings appearances after the treatment with the new consolidant. Both nano-lime-based consolidants show a less pronounced reinforcement in the mechanical strength smaller increase in the drilling-resistance and the surface hardness. The formation of a white haze with the nano-lime consolidants led to a considerable change in the colours of the wall paintings.
    Vir: Journal of cultural heritage. - ISSN 1296-2074 (Vol. 28, 2017, str. 1-8)
    Vrsta gradiva - članek, sestavni del ; neleposlovje za odrasle
    Leto - 2017
    Jezik - angleški
    COBISS.SI-ID - 2309991

    Povezava(-e):

    http://www.sciencedirect.com/science/article/pii/S1296207416304368
    DOI

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