Mapping radial, tangential and longitudinal shrinkages and relation to tension wood in discs of the tropical tree Symphonia globulifera

Clair Bruno, Jaouen Gaëlle, Beauchêne Jacques, Fournier Meriem. 2003. Mapping radial, tangential and longitudinal shrinkages and relation to tension wood in discs of the tropical tree Symphonia globulifera. Holzforschung, 57 (6) : 665-671.

https://doi.org/10.1515/HF.2003.100

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Résumé : A method for measuring shrinkage resulting from drying in the three anisotropic directions is developed and tested. Measurements are performed on sawn discs, a technique which simplifies preparation and enables large numbers of measurements. Shrinkage values can be represented as a map of the disc surface. The results indicate that comparisons between shrinkage distribution and tension wood distribution on the discs show a clear relationship and can be measured with relatively high accuracy in reference to the "shrinkage map". In the long term, this method could be useful in the timber industry as a means for choosing the direction in which logs are cut depending on their type of wood composition.

Mots-clés Agrovoc : Symphonia

Mots-clés complémentaires : Symphonia globulifera

Classification Agris : K50 - Technologie des produits forestiers

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