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Evaluation of Multi-Functional Silica-Based Nano-Products for Consolidating and Protecting Stone Material from Archaeological Sites

AuthorsPérez Ema, Natalia; Álvarez de Buergo, Mónica
KeywordsArchaeological Stone
Multifunctional Conservation Treatments
Silica Based Nanoproducts
Issue DateJan-2019
PublisherTrans Tech Publications
CitationDiffusion and Defect Data - Solid State Data - Part B - Solid State Phenomena 286: 95-104 (2019)
AbstractA silica-based nanoproduct - UCAT-10P© - developed and patented by the TEP-243 (Molecular sieves and other nanomaterials) group of the Cadiz University (UCA) is applied on two stone materials – granite and marble – from the stage front of the Roman theater of Merida, World Heritage by UNESCO (1993). Marble shows firstly scaling as the main decay form, and granite, grain-disintegration, which, at the same time, favor an acceleration of their deterioration condition due to physical, mechanical, chemical and biological processes. That is the reason of assessing the efficiency and durability of a multifuncional nanoproduct, with both consolidating and hydrophobing effects. The performance of this product has been evaluated in terms of the appearance of the stone surfaces (color and roughness), the consolidating role (hardness and ultrasound velocity) and the hydrophobing achievements (capillarity and water contact angle). The most distinctive feature of this research is the in situ testing of the stone blocks, the use of mostly non-destructive and portable techniques, and the monitoring of the product performance of the treatment at a short (1 month) and mid-term (12-15 months), proving the efficacy of the product, although its behavior changes with time.
Publisher version (URL)https://doi.org/10.4028/www.scientific.net/SSP.286.95
Appears in Collections:(IGEO) Artículos
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