Memorias de investigación
Communications at congresses:
Density estimation by vibration, screw withdrawal resistance and probing in particle and medium density fibre boards
Year:2008

Research Areas
  • Construction materials,
  • Construction of engineering

Information
Abstract
The result of probing 228 pieces of 1000 x 50 x 22 mm of particle and medium density fibre boards are presented in order to establish a density estimation model based on the use of non-destructive and portable methods such as the Screw Withdrawal Resistance Meter, Pilodyn, ultrasound and stress wave vibration. For each class of board (particle or fibre board), we tested two types, standard board and humidity resistant board. In general terms, for each board class and type, the real density variation coefficients are much lower than these obtained in the non-destructive tests, so that regression models do not allow us to establish a suitable estimation, presenting very low determination coefficients. If the results are grouped according to whether boards are particle or medium density, for the second type we obtain a normal distribution, making it possible to establish statistical models linking actual board density and the results of non-destructive testing, with good correlation and determination coefficients. The best estimation tool in this case is ultrasonic wave velocity, which has a determination coefficient of almost 80%.
International
Si
Congress
10th World Conference on Timber Engineering
960
Place
Miyazaki, Japón
Reviewers
Si
ISBN/ISSN
CDP08UPM
Start Date
02/06/2008
End Date
05/06/2008
From page
1
To page
8
Proceedings of 10th World Conference on Timber Engineering
Participants

Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Construcción con Madera
  • Departamento: Construcción y Vías Rurales
  • Departamento: Ingeniería Forestal