Scientific names: MANSONIA ALTISSIMA
Origin: WEST AFRICA
sapwood brown : very distinct
Grain: fine Grain:
Yellowish brown to dark gray brown with purplish reflections. Veins more or less apparent.
PHYSICAL AND MECHANICAL PROPERTIES
These properties can vary significantly depending on the origin and growing conditions of the wood.
- Density *: 0.66
- Monnin hardness *: 3.8
- Coef. Volume shrinkage: 0.44%
- Stability in service: not very stable
- Total radial shrinkage: 4.6%
- Fiber saturation point: 28%
- Total tangential shrinkage: 7.4%
(*: 12% humidity)
NATURAL DURABILITY AND IMPREGNABILITY OF WOOD
- Mushrooms: cl 1 – very durable
- Dry wood insects: durable; distinct sapwood (risk limited to sapwood)
- Termites: class D – durable
- Impregnability: 4 – not impregnable
- Biological risk class: 3 – out of contact with the ground, not sheltered
Although BETE is listed in class 1 for natural durability with respect to fungi (very durable) in the NF EN 350-2 standard, it should be noted that it is sensitive to attacks by the fibrous rot fungus “Coriolus versicolor “; hence its classification in 2 (sustainable).
SAWING AND MACHINING
- Blunting effect: normal
- Teeth for sawing: ordinary or alloy steel
- Machining tools: ordinary
Dusts can cause skin diseases or irritate the mucous membranes
- Nailing – Screwing: good hold
- Gluing: correct
- interior and exterior carpentry
- turned items
Main known uses to be validated by implementation in accordance with the rules of the art. Important note: some uses are mentioned for information.
Source: CIRAD – ATIBT
REACTION TO FIRE
- French conventional classification: thickness> 14 mm: M.3 (moderately flammable) thickness <14 mm: M.4 (easily flammable)
- classification according to euroclasses: D s2 d0 This default classification concerns solid woods meeting the requirements of standard NF EN 14081-1 appendix C (May 2006), used in vertical walls. Namely structural wood, classified, with a minimum average density of 0.35 and a minimum thickness of 22 mm.