Setup of a sustainable indoor cleaning methodology for the sculpted stone surfaces of the Duomo of Milan

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• 作者：Davide Gulotta (1)
  Daniela Saviello (1)
  Francesca Gherardi (1)
  Lucia Toniolo (1)
  Marilena Anzani (2)
  Alfiero Rabbolini (2)
  Sara Goidanich (1)
  
• 关键词：Stone cleaning ; Stone conservation ; Agar gel ; Colorimetric characterization ; Marble
• 刊名：Heritage Science
• 出版年：2014
• 出版时间：December 2014
• 年：2014
• 卷：2
• 期：1
• 全文大小：1,211 KB
• 参考文献：1. CNR-ICR: / Interventi conservativi: progettazione esecuzione e valutazione preventiva. Roma: ICR-CNR; 1985.
  2. BSI BSI: / BS 8221-:2000 Code of Practice for Cleaning and Surface Repair of Buildings: Surface Repair of Natural Stones. London: Brick and Terracotta; 2000.
  3. ASTM: / Standard Guide for Selection of Cleaning Techniques for Masonry, Concrete, and Stucco Surfaces. ASTM International; 2004.
  4. Baer NS, Snethlage R: Methods for the evaluation of stone conservation treatments. In / Saving Our Architectural Heritage: The Conservation of Historic Stone Structures. Report of the Dahlem Workshop, Berlin, March 3-, 1996. Edited by: Baer NS, Snethlage R. John Wiley & Sons; 1997:223-43.
  5. Snethlage R: Stone conservation. In / Stone in Architecture. Properties, Durability. Edited by: Siegesmund S, Snethlage R. Berlin Heidelberg: Springer; 2011:411-44. CrossRef
  6. Fassina V: General criteria for the cleaning of stone: theoretical aspects and methodology of application. In / Stone Material in Monuments: Diagnosis and Conservation. Scuola Universitaria C.U.M. Conservazione dei Monumenti, Heraklion, Crete, 24-0 May 1993. Edited by: Zezza F. Mario Adda; 1994:131-38.
  7. Ashurst N: / Cleaning Historic Buildings. London: Donhead Publishing; 1994.
  8. Weiss NR, Normandin KC, Slaton D: / Cleaning Techniques in Conservation Practice. Donhead Publishing Limited; 2005:11. [ / Special issue, journal of architectural conservation]
  9. Doehne EF, Price CA: / Stone Conservation: An Overview of Current Research. Getty Conservation Institute: J Paul Getty Museum Publications; 2011.
  10. Vergès-Belmin V: Towards a definition of common evaluation criteria for the cleaning of porous building materials: a review. / Sci Tech Cult Heritage 1996, 5:69-3.
  11. Bernardoni V, Vecchi R, Valli G, Piazzalunga A, Fermo P: PM10 source apportionment in Milan (Italy) using time-resolved data. / Sci Total Environ 2011,409(22):4788-795. CrossRef
  12. Brimblecombe P, Grossi CM: Aesthetic thresholds and blackening of stone buildings. / Sci Total Environ 2005,349(1-):175-89. CrossRef
  13. Grossi CM, Brimblecombe P, Bonazza A, Sabbioni C, Zamagni J, / et al.: Sulfate and Carbon Compounds in Black Crusts from the Cathedral of Milan and Tower of London. In / Heritage, Weathering and Conservation, Vols 1 and 2. Edited by: Fort R. London: Taylor & Francis Ltd; 2006:441-46.
  14. Franchetti G: / Storia e descrizione del Duomo di Milano. Milano; 1821. 182:153
  15. Sabbioni C, Ghedini N, Bonazza A: Organic anions in damage layers on monuments and buildings. / Atmos Environ 2003,37(9-0):1261-269. CrossRef
  16. Gulotta D, Bertoldi M, Bortolotto S, Fermo P, Piazzalunga A, Toniolo L: The Angera stone: a challenging conservation issue in the polluted environment of Milan (Italy). / Environ Earth Sci 2013,69(4):1085-094. CrossRef
  17. Praiboon J, Chirapart A, Akakabe Y, Bhumibhamond O, Kajiwarac T: Physical and chemical characterization of agar polysaccharides extracted from the Thai and Japanese species of Gracilaria. / Sci Asia 2006, 32:11-7. CrossRef
  18. Wang M, Ha Y: An electrochemical approach to monitor pH change in agar media during plant tissue culture. / Biosens Bioelectron 2007,22(11):2718-723. CrossRef
  19. An L, Zhao TS, Zeng L: Agar chemical hydrogel electrode binder for fuel-electrolyte-fed fuel cells. / Appl Energy 2013, 109:67-1. CrossRef
  20. Santoro M, Marchetti P, Rossi F, Perale G, Castiglione F, Mele A, Masi M: Smart approach to evaluate drug diffusivity in injectable agar-carbomer hydrogels for drug delivery. / J Phys Chem B 2011,115(11):2503-510. CrossRef
  21. Davies E, Huang Y, Harper JB, Hook JM, Thomas DS, Burgar IM, Lillford PJ: Dynamics of water in agar gels studied using low and high resolution ¹ H NMR spectroscopy. / Int J Food Sci Tech 2010,45(12):2502-507. CrossRef
  22. Medina-Esquivel R, Freile-Pelegrin Y, Quintana-Owen P, Yá?ez-Limón JM, Alvarado-Gil JJ: Measurement of the sol–gel transition temperature in agar. / Int J Thermophys 2008,29(6):2036-045. CrossRef
  23. Pernodet N, Maaloum M, Tinland B: Pore size of agarose gels by atomic force microscopy. / Electrophoresis 1997,18(1):55-8. CrossRef
  24. Cremonesi P: / Applicazione di metodologie di intervento più recenti per la pulitura del materiale cartaceo." in Atti delle giornate di studio Problemi di Restauro - Giornate di Studio per storici d’arte, ispettori di Soprintendenza, conservatori e operatori museali. 2006, 39-6. [ / Il Prato]
  25. Beltrami E, Berzioli M, Cagna M, Casoli A, Cremonesi P, Cuaz N, Selva Bonino VE: La pulitura dei dipinti murali: studio comparativo di materiali e metodi. / Progetto Restauro 2011, 58:2-5.
  26. Bucci G, Lalli C, Lanfranchi M: Un caso particolare di pittura murale, la Vergine di Querceto: i problemi conservativi e i materiali di restauro. / OPD restauro: rivista dell’Opificio delle pietre dure e laboratorio di restauro di Firenze 2006, 18:201-10.
  27. Rava A, Shank W, Colombini MP, Chiantore O, Picollo M, Palleschi V, / et al.: / Keith Haring a Pisa. Pulitura e protezione di un dipinto acrilico esposto in ambiente esterno. Proceedings of the XXVIII International conference Scienza e Beni Culturali; 2012.
  28. Gorel F: / Assessment of Agar Gel Loaded with Micro-Emulsion for the Cleaning of Porous Surfaces. CeROArt; 2010.
  29. Sansonetti A, Casati M, Striova J, Canevali C, Anzani M, Rabbolini A: A Cleaning Method Based on the Use of Agar Gels: New Tests and Perspectives. In / 12th International congress on the deterioration and conservation of stone. New York; 2012.
  30. Anzani M: Utilizzo dei gel rigidi ai agar agar per la pulitura del materiale lapideo. In / Tecniche di restauro. Edited by: Musso SF. UTET Scienze Tecniche; 2013.
  31. Anzani M, Berzioli M, Cagna M, Campani E, Casoli A, Cremonesi P, Fratelli M, Rabbolini A, Riggiardi D: / Gel rigidi di agar per il trattamento di pulitura di manufatti in gesso. Padova, Il Prato: Quaderni n.6, CESMAR 7; 2008.
  32. Shaeffer E, Gardiner J: New and Current Materials and Approaches for Localized Cleaning in Textile Conservation. / 41st AIC annual meeting - the contemporary in conservation, Indianapolis, Indiana 2013.
  33. Talarico F, Caldi C, Valenzuela M, Zaccheo C, Zampa A, Nugari MP: Applicazioni dei gel come supportanti nel restauro. / Bollettino ICR 2001, 3:101-18.
  34. Guerra P, Abeni M: Un esempio di applicazione di gel rigidi di agar. / Progetto Restauro 2008, 47:15-9.
  35. Littlejohn F, Grant CS: Effect of poly(aspartic acid) on the removal rates of brushite deposits from stainless steel tubing in turbulent flow. / Ind Eng Chem Res 2002,41(18):4576-584. CrossRef
  36. García O, Malaga K: Definition of the procedure to determine the suitability and durability of an anti-graffiti product for application on cultural heritage porous materials. / J Cult Herit 2012,13(1):77-2. CrossRef
  
• 作者单位：Davide Gulotta (1)
  Daniela Saviello (1)
  Francesca Gherardi (1)
  Lucia Toniolo (1)
  Marilena Anzani (2)
  Alfiero Rabbolini (2)
  Sara Goidanich (1)
  
  1. Politecnico di Milano -Dipartimento di Chimica Materiali e Ingegneria Chimica, Via Luigi Mancinelli 7, 20131, Milano, Italy
  2. ACONERRE, Arte Conservazione Restauri snc, via Paolo Sarpi 42, 20154, Milano, Italy
  
• ISSN：2050-7445

文摘

Cleaning is a fundamental phase of the conservation and maintenance activity of the cultural heritage. It is required to be highly effective in the removal of undesired deposits, controllable at every stage and gradable, selective, and completely respectful of the substrate. Moreover, cleaning procedures which can also assure to be harmless to the environment and the operators are particularly valued nowadays. According to these general guidelines, in the present work a sustainable approach for the cleaning of indoor surfaces of the cultural heritage is presented. A methodology based on agar gel was setup and preliminary tested on pilot areas. It has been then applied to the stone sculpted surfaces of the “Fuga in Egitto-high-relief of the Duomo of Milan. A multi-analytical approach was carried out during the setup phase to compare the efficacy of different cleaning conditions in terms of agar concentration, application time and presence of additives. Hence, spectrophotometric measurements, optical observations, ESEM-EDX analyses, Fourier Transform Infrared Spectroscopy, and X-Ray Diffraction were performed. Specific attention was paid to the aesthetic features of the sculpted surfaces before and after the cleaning. For this purpose, spectrophotometric data have been analysed by multivariate analysis techniques such as Principal Component Analysis and Hierarchic Cluster Analysis. The overall intervention has been monitored to evaluate the cleaning results and to confirm the absence of any damage to the stone substrate. The application of agar gel proved to be effective in removing soluble salts and soot particles, as well as very respectful of the valuable sculpted surfaces. This methodology is also totally safe for both the operators and the visitors, it is based on a natural and low-cost raw material, and it is low time-consuming. It can be therefore considered as a sustainable alternative to the traditional procedures.