Preserve to care. Conservation and Restoration Treatments of the Dugbout Lima 1.
Abstract
Structural repairs of waterlogged archaeological objects consolidated with synthetic waxes continue to be delicate measures, mainly because there are still no truly suitable adhesive solutions that can be used effectively in a generalized way in this material. In the conservation and restoration intervention, carried out at the CNANS/DGPC Laboratory, to solve the cracking problems of the Dugbout Lima 1 (consolidated with synthetic wax), we developed a treatment methodology, based on the behavior of wood creep, which showed good practical effects in the stabilization of the viscoelastic reaction and in the internal tensions of the shrinkage phenomena, following relaxation parameters suitable for the satisfactory and lasting action of commercial adhesive solutions. The procedures involved and the tasks carried out, can constitute a relevant reference in the mitigation of these problems, in this material reality, or be useful in large-scale interventions, where there are no large budgets resources or of the infrastructures.
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References
ALVES, F. J. S. (1986). “A piroga monóxila de Geraz do Lima”. O Arqueólogo Português, IV-4: 209-234
BARCLAY, R., MATHIAS, C. (1989). “An Epoxy/Microballoon Mixture for Gap Filling in Wooden Objects.” Journal of the American Institute for Conservation, 28 (1): 31-42 https://doi.org/10.1179/019713689806046255 [Consulta: 29/12/2022]
BORGES, P. C. B. (2013). Caraterização das Propriedades Físicas e Mecânicas da Madeira de Carvalho e de Castanho do Nordeste Transmontano: Dissertação de Mestrado em Engenharia da Construção, IPB https://bibliotecadigital.ipb.pt/bitstream/10198/9261/1/Borges_Paula.pdf [Consulta: 09/11/2022]
BRANDI, C. (2006). Teoria do Restauro. Amadora: Edições Orion.
BRITEZ, C. A., NOGUEIRA, V. (2006). Princípios da Ciência dos Materiais Aplicados aos Materiais de Construção Civil: Inter-relação entre as propriedades e a microestrutura das madeiras: Departamento de Engenharia de Construção Civil, Escola Politécnica da Universidade de São Paulo madeira_-_ipt_-_microestrutura.pdf (weebly.com) [Consulta: 03/11/2022]
BRODA, M. et al. (2019). “Dimensional Stability and Moisture Properties of Gap-Fillers Based on Wood Powder and Glass Microballoons. ”Studies in Conservation https://doi.org/10.1080/00393630.2019.1630567 [Consulta: 29/12/2022]
BRODA, M., HILL, C. A. S. (2021). “Conservation of Waterlogged Wood—Past, Present and Future Perspectives.” Forests, 12, 1193: 25 -79 https://doi.org/10.3390/f12091193 [Consulta: 12/11/2022]
CARVALHO, S. V. S. (2015). Fluência de materiais: Dissertação de Mestrado em Engenharia Civil, ISEP DM_SofiaCarvalho_2015_MEC.pdf (ipp.pt) [Consulta: 11/01/2023]
Decreto nº 11/2021, 7 de junho Decreto n.º 11/2021, de 7 de junho | DR (diariodarepublica.pt) [Consulta: 21/06/2023]
Lisboa, CNANS, Processo 1985/005
FORTINO, S. et al. (2020). “Scratch resistance of PEG-impregnated green wood: a method for evaluation of swollen wood properties” Wood Science and Technology, 54: 715-735 https://doi.org/10.1007/s00226-020-01179-0
FRIHART, C. R. (2012). “Wood Adhesion and Adhesives” Handbook of Wood Chemistry and Wood Composites, Rowell R. M. (Ed), Nova Iorque: 215- 278 https://doi.org/10.1201/b12487-13 [Consulta: 06/07/2023]
GLASS, S. V., ZELINKA, S. V. (2010). “Moisture Relations and Physical Properties of Wood.” Wood handbook—Wood as an engineering material, Risbrudt, C. D. (Dir). Madison, Forest Products Laboratory: 4-1, 4-19
GOLDING, T. M. (2003). “Epoxy Resin Adhesives”. Handbook of Adhesive Technology, Pizzi A., Mittal K. L. (Ed.), Nova Iorque: 799 – 814.
GRATTAN, D. W., CLARKE, R. W. (1987). “Conservation of waterlogged wood”. Conservation of Marine Archaeological Objects, Pearson C. (Ed.), Camberra: 164 – 206
GRAVE, D. J. (2004). “A comparative study of consolidants for waterlogged wood: polyethylene glycol, sucrose, and silicone oil.” SSCR J. News Mag. Scott. Soc. Conserv. Restor. 15 (3): 13-17 (PDF) A comparative study of consolidants for waterlogged wood: polyethylene glycol, sucrose, and silicone oil | Dorothy Graves McEwan - Academia.edu [Consulta: 12/11/2022]
GUERREIRO, N. (2022) Comunicação Pessoal
HAMILTON, D. L. (1999). “Wood Conservation”. Methods for Conserving Archaeological Material from Underwater Sites, Conservation Research Laboratory, Center for Maritime Archaeology and Conservation, Texas, A&M University. UA-116 (pca-cpa.org) [Consulta: 21/11/2022]
HILÁRIO, R. S. O. (2013). Dimensionamento de Estruturas em Madeira Metodologia e disposições regulamentares relativamente a ligações, Tese de Mestrado, ISTL,c327c6c2098c3d7d8dac5a6543081a6b819819e13b1b922d0131456d40f1ec21.pdf (ulisboa.pt) [Consulta: 08/07/2023]
HOFFMAN, P. (1986). “On the stabilization of waterlogged oakwood with PEG. II. Designing a two-step treatment for multi-quality timbers.” Studies in Conservation, 31 (3): 103-113 https://doi.org/10.1179/sic.1986.31.3.103 [Consulta: 12/11/2022]
HUBBE, M. A. (2017). “To Repair or Not to Repair Cracked Wood”, BioResources Jornal 12 (4): 6904-6906 PEER-REVIEW ARTICLE (ncsu.edu) [Consulta: 01/09/2022].
ICOMOS. (2017). Principles for the conservation of wooden built heritage, New Delhi, India, International Council of Monuments and Sites. PRINCIPLES FOR THE CONSERVATION OF WOODEN BUILT HERITAGE (icomos.org) [Consulta: 03/11/2022]
JANSEN, P. et al. (2001). “Dynamic LV-SEM analyses of freeze drying processes for waterlogged wood”. Proceedings of the 8th ICOM Group on Wet Organic Archaeological Materials Conference, Stockholm, 319-331 2.PDF (deben.co.uk) [Consulta: 12/11/2022]
KRETSCHMANN, D. E. (2010). “Mechanical Properties of Wood”. Wood handbook—Wood as an engineering material, Risbrudt, C. D. (Dir). Madison, Forest Products Laboratory: 5-1,5-46
LEAL, S. C. da S. (2010). Avaliação do Comportamento Mecânico de Madeira Antiga de Carvalho Proveniente de Incêndio, Tese de Mestrado, FEUP http://hdl.handle.net/10216/60527 [Consulta: 22/11/2022]
MARTINS, A. M. (2014). Relatório dos Trabalhos Preparatórios para o Desenvolvimento do Processo de Liofilização das Pirogas Nº 1 e Nº 2, no Museu de Arqueologia Subaquática em Cartagena – Espanha. Lisboa, CNANS, Processo 1985/005
MERGNY, E. et al. (2016). “Influence of Cracks on the Stiffness of Timber Structural Elements.” World Conference on Timber Engineering, Viena (PDF) “ INFLUENCE OF CRACKS ON THE STIFFNESS OF TIMBER STRUCTURAL ELEMENTS “ (researchgate.net) [Consulta: 31/08/2022]
MORESCHI, J. C. (2012). “Propriedades da Madeira” Centro de Ciências Florestais e da Madeira, Departamento de Engenharia e Tecnologia Florestal, UFPR, Brasil. PROPRIEDADES DA MADEIRA.pdf (ufpr.br) [Consulta: 21/11/2022]
MUIR, K. (2009) “Approaches to the reintegration of paint loss: theory and practice in the conservation of easel paintings”. Reviews in Conservation, 10, 19-28 https://doi.org/10.1179/sic.2009.54.Supplement-1.19
OLIVEIRA, J. M. Q. de (2017). Comportamento mecânico da madeira sob solicitações de modo misto: Dissertação de Doutoramento em Engenharia Mecânica, UBI http://hdl.handle.net/10400.6/4497
PEARSON, C. (1987). “Οn-site storage and conservation.” Conservation of Marine Archaeological Objects, Pearson C. (Ed.), Camberra: 105-116
PHILLIPS, M. W., SELWYN, J. E. (1978). Epoxies for Wood Repairs in Historic Buildings. Washington, D.C.: Department of the Interior, Heritage Conservation and Recreation Service
RICE, J. T. (1989). “Gluing of Archaeological Wood”, Archaeological Wood: Properties, chemistry, and Preservation, Rowell R.; Barbour R. (Eds). Washington DC: 373 - 397
SANTOS, L. M. L. dos (2018). “Madeiras.” Revista Científica Semana Acadêmica, 131: 2-35 Título (semanaacademica.org.br) [Consulta: 31/08/2022]
SOUSA, C. B. de et al. (2007). Temas de Museologia. Plano de Conservação Preventiva. Bases Orientadoras, Normas e Procedimentos, Camacho C. (Coord), Lisboa, Textype
SOUSA, R. M. L. de (2012). Avaliação Experimental da Estabilidade Dimensional de Elementos em Pinho Bravo e Madeira Tratada Termicamente: Dissertação de Mestrado em Construção e Reabilitação Sustentáveis, UM https://hdl.handle.net/1822/24768 [Consulta: 21/11/2022]
VALLE, A. et al. (2012). “Estruturas de Madeira.” Departamento de Engenharia Civil, Universidade Federal de Santa Catarina, Florianópolis, Brasil Microsoft Word - apostila madeiras revisao 2012-09-10 teste.docx (ufsc.br) [Consulta: 04/11/2022]
VOROBYEV, A. et al (2019) “Orthotropic Creep in Polyethylene Glycol Impregnated Archaeological Oak from the Vasa Ship: Results of Creep Experiments in a Museum-like Climate.” Mech. Time-Depend Mater, 23, 35–52 https://doi.org/10.1007/s11043-018-9382-3
WINANDY, J. E., ROWELL, R. M. (2005). “Chemistry of Wood Strength.” Handbook of Wood Chemistry and Wood Composites, Rowell J. (Ed), Boca Raton: 305 – 343 https://doi.org/10.1201/9780203492437 [Consulta: 30/11/2022]
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