Kotibé

PHYSICAL AND MECHANICAL PROPERTIES

These properties can vary significantly depending on the origin and growing conditions of the wood.

• Density *: 0.76
• Monnin hardness *: 5.0
• Coef. Volume shrinkage: 0.50%
• Stability in service: stable
• Total radial shrinkage: 5.1%
• Fiber saturation point: 30%
• Total tangential shrinkage: 7.5%

(*: 12% humidity)

NATURAL DURABILITY AND IMPREGNABILITY OF WOOD

• Mushrooms: cl 3 – moderately durable
• Insects of dry wood: durable; distinct sapwood (risk limited to sapwood)
• Termites: class M – moderately durable
• Impregnability: 3-4 – little or no impregnation
• Biological risk class: 2 – out of contact with the ground, sheltered (risk of humidification)

Natural durability to variable fungi.

SAWING AND MACHINING

• Blunting effect: quite significant
• Sawing toothing: stellate toothing
• Machining tools: tungsten carbide

Requires power. Blunting effect due to hardness. When green, tends to foul the saw teeth. Sometimes difficulties due to the cross-thread.

ASSEMBLY

• Nailing – Screwing: good hold
• Gluing: correct

Pilot holes are sometimes necessary.
Gluing requires care: the wood can stain.

USES

Careful sanding is necessary in the presence of irregular grain.

• interior carpentry
• parquet
• stairs
• furniture
• item turned
• sculpture
• paneling
• vehicle or container bottom

Main known uses to be validated by implementation in compliance 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 timber, classified, with a minimum average density of 0.35 and a minimum thickness of 22 mm.