Estudio de métodos de limpieza sobre yeserías medievales
[EN] The use of gypsum in decorative architectural facing has been very usual in the history, owing to the presence of plentiful deposits and the features of this one. In the Iberian Peninsula, gypsum has been used in decoratives elements (romans cornices, medieval platerwork, walls paintings…), the...
| Autores: | , , |
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| Formato: | capítulo de livro |
| Fecha de publicación: | 2021 |
| País: | España |
| Recursos: | Universitat Politècnica de València (UPV) |
| Repositorio: | RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia |
| Idioma: | español |
| OAI Identifier: | oai:riunet.upv.es:10251/160364 |
| Acesso em linha: | https://riunet.upv.es/handle/10251/160364 |
| Access Level: | acceso abierto |
| Palavra-chave: | Patrimonio Tangible Intangible Paisajes Culturales Itinerarios Turismo Arquitectura Arqueología Pintura Escultura Arte Limpieza Revestimiento Yesería Repolicromado Conservación Restauración Medieval Encalado Cleaning Facing Plasterworks Repolychromed Conservation Restoration Heritage Calcimine |
| Resumo: | [EN] The use of gypsum in decorative architectural facing has been very usual in the history, owing to the presence of plentiful deposits and the features of this one. In the Iberian Peninsula, gypsum has been used in decoratives elements (romans cornices, medieval platerwork, walls paintings…), the gypsum facing manufacturated in the Middle Ages stand out, named plasterwork, which are present in important monuments such as the Alhambra in Granada or the Real Alcazar of Seville. Currently, these plastework present serius conservation problems such as repolychromed or whitewash, which are damaging since they hide the original polycromy and even they can produce its definitive loss. In addiction to these problems it joins the lack of specific studies of cleaning treatments more suitable for these Works. Therefore, a first investigation on cleaning methods to be used in coatings with this problem is adressed. Starting from treatments used in a traditional way, such as physical methods (scalpel) and chemical methods (cotton poultices with solvents), but also adapting other recently incorporated treatments such as polysaccharide gels or cellulose ethers as a solvent vehicle. The results obtained allow to establish that the use of gels such as red alga, cellulose ethers and acrylic acid are effective for cleaning whitewash and repoliychromed in gypsum facing. |
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