Browsing by Author "Canessa Selvad, Malin"

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    Fuktbaserad konsolidering av freskomåleri
    (2013-06-20) Canessa Selvad, Malin; University of Gothenburg/Department of Conservation; Göteborgs universitet/Institutionen för kulturvård
    The study is based on a conservation project in the Vatican museums where some problems were observed with an aqueous-based consolidant in the preservation of XVI century mural paintings. The medium penetrated the porous surface layer and formed dark circles around the injection hole. The essay is based on literary investigation and to some extend experimental work. The aim of this study is to highlight issues regarding deterioration of the internal structure, the consolidation process and ethical issues in preservation of fresco paintings. Further the essay presents and evaluates consolidants used in the field, with focus on problems of superficial grouting. In order to understand which consolidation products are used in Sweden today and to get an up to date insight on the various consolidants and their problems. A questionnaire was sent to Swedish conservators working in the field, in both conservation institutes and private firms. The results from the questionnaire and information collected from scientific articles is presented and discussed. Simulated experiments in the laboratory were done with three consolidants, aqueous- or solvent-based mediums used for consolidation of porous superficial grouts.