Materiales de Construcción, Vol 61, No 303 (2011)

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


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

Luis Acuña
Universidad de Valladolid. E.T.S. de Ingenierías Agrarias, Palencia, Spain

L. Alfonso Basterra
Universidad de Valladolid. E.T.S. de Arquitectura, Valladolid, Spain

M. Milagrosa Casado
Universidad de Valladolid. E.T.S. de Ingenierías Agrarias, Palencia, Spain

Gamaliel López
Universidad de Valladolid. E.T.S. de Arquitectura, Valladolid, Spain

Gemma Ramón-Cueto
Universidad de Valladolid. E.T.S. de Arquitectura, Valladolid, Spain

Enrique Relea
Universidad de Valladolid. E.T.S. de Ingenierías Agrarias, Palencia, Spain

Carlos Martínez
Universidad de Valladolid. E.T.S. de Ingenierías Agrarias, Palencia, Spain

Ana González
Universidad de Valladolid. E.T.S. de Ingenierías Agrarias, Palencia, Spain

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.

Keywords


Resistograph; Timber; Inspection; Density; Species

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References


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