Observatorio de I+D+i UPM

Memorias de investigación
Communications at congresses:
Density Estimation by Screw Withdrawal Resistance and Probing in Structural Sawn Coniferous Timber
Year:2007
Research Areas
  • Construction materials,
  • Construction of engineering
Information
Abstract
The results of probing 395 sawn pieces of Radiata pine (Pinus radiata D. Don), Scots pine (Pinus sylvestris L.) and Laricio pine (Pinus nigra Arn. ssp. salzmannii) from Spanish sources are presented. Specimens had a cross section of 150x200 mm, 150x250 mm and 200x250 mm. The Screw Withdrawal Force Meter (SWFM) developed by the Wood NDT Laboratory of the University of Western Hungary, in Sopron, and the Pilodyn 6J Wood Tester by Proceq, were used to measure screw withdrawal force and penetration depth, respectively. This paper concludes that for structural coniferous timber the density values estimated based on probing measurements are reliable. There is a positive correlation between non-destructive parameters and density (a coefficient of determination r2 of 50% to 56% is obtained). The authors believe that it is possible to use probing as a good combined nondestructive technique and to improve the results of visual grading, at least as an additional parameter for the structural sawn timber of existing structures.
International
Si
Congress
15th International Symposium on Nondestructive Testing of Wood
960
Place
Duluth, Minnesota, USA
Reviewers
Si
ISBN/ISSN
pend. publicación
Start Date
10/09/2007
End Date
12/09/2007
From page
To page
Participants
  • Participante: Laura Casas (Universidad Politécnica de Madrid)
  • Autor: Ignacio Bobadilla Maldonado (UPM)
  • Autor: Francisco Arriaga Martitegui (UPM)
  • Autor: Guillermo Iñiguez Gonzalez (UPM)
  • Autor: Miguel Esteban Herrero (UPM)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Construcción con Madera
  • Departamento: Ingeniería Forestal
  • Departamento: Construcción y Vías Rurales
S2i 2019 Observatorio de investigación @ UPM con la colaboración del Consejo Social UPM
Cofinanciación del MINECO en el marco del Programa INNCIDE 2011 (OTR-2011-0236)
Cofinanciación del MINECO en el marco del Programa INNPACTO (IPT-020000-2010-22)