Influence of projection angle in sandblasting cleaning on detrictic stone materials in Architectural Heritage
DOI:
https://doi.org/10.3989/mc.2014.02113Keywords:
Conservation, Restoration, Cleaning, Micro-sandblasting, Sandstone, Differential erosionAbstract
In this research, the influence of the angle in abrasive blasting cleaning is studied on Montjuïc sandstone with black crust. After analyzing the properties of the soiling and the material, and their possible influence on the treatment, different cleaning tests were made at four different angles, keeping the complementary parameters constant. Taking the restorer’s perspective as a starting point, and in order to fulfill the practical requirements of an intervention —time and cost reduction—, tests were evaluated with USB digital microscope, stereomicroscope with 3D visualization and measurement, and colorimeter. From the results it is established that angles close to 75° minimize surface alteration, reducing differential erosion in the binding phases of detritic materials usually caused by this treatment.
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References
Lazzarini, L.; Laurenzi Tabasso, M. (1986) Il restauro della pietra, CEDAM, Padova.
Ashurst, N. (1994) Cleaning historic buildings, Vol. 2: Cleaning materials and processes, Donhead Publishing, London.
Esbert, R.M.; Ordaz, J.; Alonso, F.J.; Montoto, M. (1997) Manual de diagnosis y tratamiento de materiales pétreos y cerámicos. Manuals de Diagnosi, [5], Barcelona: Col.legi d'Aparelladors i Arquitectes Tècnics de Barcelona.
Vergès-Belmin, V.; Bromblet, P. (2000) Le nettoyage de la pierre, Monumental. Revue scientifique et technique des Monuments Historiques, 220–273.
Iglesias Campos, M. (2010) Métodos mecánicos para la limpieza de materiales constructivos: proyección de abrasivos a baja presión. In: Gisbert Aguilar, J. (ed.). La tecnología láser y otros métodos de limpieza y restauración de materiales pétreos. Documentos para la caracterización y restauración del patrimonio histórico. Cuadernos Arbotante [1]. Libros Pórtico, Zaragoza, 29–43.
Commissione Normal. CNR-ICR (1986) Normal 20/85. Interventi conservativi: progettazzione, esecuzione e valutazione preventiva.
BS 8221-1:2000 (1986) Code of practice for cleaning and surface repair of buildings. Part 1: Cleaning of natural stones, brick, terracotta and concrete.
ASTM International: E1857-97 (2004). Standard guide for selection of cleaning techniques for masonry, concrete and stucco surfaces.
AENOR: UNE 41806-3:2009 (2009) In: Conservación de edificios. Limpieza de elementos constructivos. Parte 3: Técnicas de limpieza mecánica.
Iglesias, M.; Gea, B.; Prada, J.L.; Guasch, N. (2006) Low-pressure abrasive cleaning of historic building materials. Proc. of the International Heritage, Weathering and Conservation Conference (HWC-2006), Madrid, Fort, R.; Álvarez de Buergo, M.; Gómez Heras, M. &Vazquez-Calvo C. (eds.), Spain,Taylor & Francis, London, 681–686. Alonso, F.J.; Esbert, R.M.; Ordaz, J.; Valdeón, L.; Rojo, A.; Mateos, F. (2007) El claustro de la catedral de Oviedo: conservación de la piedra. In: Restauradores sin Fronteras e Instituto de Geología Económica (CSIC-UCM) (ed.). Ciencia y tecnología para una conservación sostenible del Patrimonio Pétreo, Boceto, Madrid, 13–21.
Iglesias, M.; Prada, J.L.; Guasch, N. (2008). Technique for cleaning Tarragona Miocene age dolomitized silty limestone, altered by urban pollution. Mater. Construcc., vol. 58, [289–290], 247–262. http://dx.doi.org/10.3989/mc.2008.v58.i289-290
Perez-Monserrat, E.M.; Varas, J.M.; Fort, R.; de Buergo, M.A. (2011) Assessment of different methods for cleaning the limestone facades of the former workers Hospital of Madrid, Spain, Studies in: Conservation, 56, [4], 298–313. http://dx.doi.org/10.1179/204705811X13159282692969
Young, M.E.; Urquhart, D.C.M.; Laing, R.A. (2003) Maintenance and repair issues for stone cleaned sandstone and granite building façades, Building and Environment. 38, [9–10], 1125–1131. http://dx.doi.org/10.1016/S0360-1323(03)00084-2
Grissom, C.A.; Charola, A.E.; Wachowiak, M.J. (2000) Measuring surface roughness on stone: back to basics. Studies in Conservation, 45, [2], 73–84. http://dx.doi.org/10.1179/sic.2000.45.2.73
Blanco Domínguez, M. (2000) Aplicación del láser y de la proyección de abrasivos en rocas ornamentales y de cantería aragonesas. Tesis doctoral. Universidad de Zaragoza.
Iglesias, M. (2000) Un ensayo de limpieza de superficies delicadas por proyección de abrasivos a baja presión, AKOBE. Restauración y conservación de bienes culturales, [4], 13–16.
Esbert, R.M.; Ordaz, J.; Alonso, F.J. (1999) Anàlisi i pautes d'actuacions en els elements de pedra de les façanes de l'Eixample de Barcelona. Pro-Eixample, Barcelona.
Farrando Boix, R. (1999) La pedra de Montjuïc de la Catedral de Barcelona. Publicació La Busca, Barcelona.
Gómez-Gras, D.; Parcerisa, D.; Calvet, F.; Porta J.; Solé De Porta N.; Civís, J. (2001) Statigraphy and petrology of the Miocene Montjuïc delta (Barcelona, Spain). Acta Geológica Hispánica, 36, [1–2], 115–136.
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