Application of resistograph to obtain the density and to differentiate wood species

Authors

  • Luis Acuña Universidad de Valladolid. E.T.S. de Ingenierías Agrarias, Palencia
  • L. Alfonso Basterra Universidad de Valladolid. E.T.S. de Arquitectura, Valladolid
  • M. Milagrosa Casado Universidad de Valladolid. E.T.S. de Ingenierías Agrarias, Palencia
  • Gamaliel López Universidad de Valladolid. E.T.S. de Arquitectura, Valladolid
  • Gemma Ramón-Cueto Universidad de Valladolid. E.T.S. de Arquitectura, Valladolid
  • Enrique Relea Universidad de Valladolid. E.T.S. de Ingenierías Agrarias, Palencia
  • Carlos Martínez Universidad de Valladolid. E.T.S. de Ingenierías Agrarias, Palencia
  • Ana González Universidad de Valladolid. E.T.S. de Ingenierías Agrarias, Palencia

DOI:

https://doi.org/10.3989/mc.2010.57610

Keywords:

Resistograph, Timber, Inspection, Density, Species

Abstract


This project offers a methodology for the analysis of resistographic profiles obtained from samples of wood and the extraction of precise data from these profiles. Tests were conducted on healthy samples of wood from six different species, as well as on “old” wood in use as part of timber structures with an age of 80-120 years. Based on the data collected using the resistograph, a series of variables was determined, and statistically analysed. An analysis of the data reveals the close relation between the resistographic variables and wood density (R2> 90%). Equally, in the case of healthy wood, an analysis of the defined variables permits the identification of the species of the sample with a very high probability and, therefore, its indirect resistance values.

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References

(1) Rinn, F.: “Catalogue of relative density profiles of trees, poles and timber derived from RESISTOGRAPH micro-drillings”. Proceedings of the 9th International Symposium on Non Destructive Testing of Wood, 22-24 September 1993, pg 61-67. Wisconsin, USA, 1993.

(2) Bouffier, L.; Charlot, C.; Raffin, A.; Rozenberg, P.; Kremer, A.: “Can wood density be efficiently selected at early stage in maritime pine (Pinus pinaster Ait.)?”. Ann. For. Sci., vol. 65 (2008), article nº 106. doi:10.1051/forest:2007078

(3) Álvarez, L., Basterra, L.A.; Casado, M.; Acuña, L.: “Aplicación del resistógrafo al diagnóstico de elementos singulares en Estructuras de madera”. Proceedings of I Jornadas de Investigación en Construcción, 2-4 june 2005, pg 165-181. Madrid, España, 2005.

(4) Basterra, L.A.; Acuña, L.; Casado, M.; Ramón-Cueto, G. & López, G.: “Diagnóstico y análisis de estructuras de madera mediante técnicas no destructivas: aplicación a la Plaza Mayor de Chinchón (Madrid)”. Informes de la Construcción, vol. 61, nº 516 (2009): 21-36. doi:10.3989/ic.09.016

(5) Mariño Allegue, R; Fernández Rodríguez, Mª. E; Fernández Rodríguez, C.: “Análisis comparativo de la densidad de la madera Pinus sylvestris L. mediante la utilización del Resistógrafo”. Revista CIS-Madera, nº 9 (2002): 60-70.

(6) Capuz, R.: “Métodos de ensayo no destructivos para la estimación de las propiedades físicas y mecánicas de las maderas”. Ph.D. diss., Universidad Politécnica de Valencia, España, 2003.

(7) Rinn, F.: “One minute pole inspection with resistograph micro drillings”. Proceedings of the International Conference wood poles & piles. 20-23 March 1994, pg 12-18. Colorado, USA, 1994.

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Published

2011-09-30

How to Cite

Acuña, L., Basterra, L. A., Casado, M. M., López, G., Ramón-Cueto, G., Relea, E., Martínez, C., & González, A. (2011). Application of resistograph to obtain the density and to differentiate wood species. Materiales De Construcción, 61(303), 451–464. https://doi.org/10.3989/mc.2010.57610

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Section

Research Articles