Variation throughout the tree stem in the physical-mechanical properties of the wood of Abies alba Mill. from the Spanish Pyrenees

González Rodrigo, Beatriz; García Esteban, Luis; Palacios de Palacios, Paloma de; Garcia Fernandez, Francisco y Guindeo Casasús, Antonio (2013). Variation throughout the tree stem in the physical-mechanical properties of the wood of Abies alba Mill. from the Spanish Pyrenees. "Madera y Bosques", v. 19 (n. 2); pp. 87-107. ISSN 1405-0471.

Descripción

Título: Variation throughout the tree stem in the physical-mechanical properties of the wood of Abies alba Mill. from the Spanish Pyrenees
Autor/es:
  • González Rodrigo, Beatriz
  • García Esteban, Luis
  • Palacios de Palacios, Paloma de
  • Garcia Fernandez, Francisco
  • Guindeo Casasús, Antonio
Tipo de Documento: Artículo
Título de Revista/Publicación: Madera y Bosques
Fecha: 2013
Volumen: 19
Materias:
Palabras Clave Informales: Fir, longitudinal direction, mechanical properties, physical properties, radial direction
Escuela: E.U.I.T. Obras Públicas (UPM) [antigua denominación]
Departamento: Ingeniería Civil: Tecnología de la Construcción [hasta 2014]
Licencias Creative Commons: Reconocimiento - Sin obra derivada - No comercial

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Resumen

This study analyses the variation of main physical-mechanical properties of wood along the longitudinal and radial directions of the tree for Abies alba Mill. growing in the Spanish Pyrenees. Small clear specimens were used to study the properties of volumetric shrinkage (VS), density (?), hardness (H), bending strength (MOR), modulus of elasticity (MOE), maximum compressive strength parallel to the grain (MCS) and impact strength (K). Several models of properties variation in the longitudinal and radial directions were analyzed. Main trends of variation of properties throughout the tree stem were identified although none of them could be fitted to predictive statistical models. Along the longitudinal direction, the properties studied followed a downward trend from the base to the crown, which was not significant in all cases, indicating that no differences in quality existed. Throughout the radial direction the trend is upward for the first 40-50 growth rings, after which it slopes downwards, more gently at first until rings 70-75 and then more steeply. This behaviour is related to variation in wood structure from the pith to the bark, depending on whether the wood is juvenile, sapwood or heartwood, and to wood maturity and microfibril angle. Authors encourage carrying further studies on other populations of A. alba in the Spanish Pyrenees to check if the trends found in this study apply to other provenances.

Más información

ID de Registro: 26839
Identificador DC: http://oa.upm.es/26839/
Identificador OAI: oai:oa.upm.es:26839
URL Oficial: http://www1.inecol.edu.mx/myb/resumeness/19.2/myb19287107.pdf
Depositado por: Memoria Investigacion
Depositado el: 17 May 2015 07:57
Ultima Modificación: 17 May 2015 07:57
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