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Doussié
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Name: AFZELIA
Family: CAESALPINIACEAE
Scientific names: AFZELIA AFRICANA / BELLA / BIPINDENSIS / PACHYLOBA
Origin: WEST AFRICA – CENTRAL AFRICA
Family: CAESALPINIACEAE
Scientific names: AFZELIA AFRICANA / BELLA / BIPINDENSIS / PACHYLOBA
Origin: WEST AFRICA – CENTRAL AFRICA
WOOD DESCRIPTION
Reference color: red brown
Sapwood: quite distinct
Grain: coarse Grain:
straight or counter-grain
Counter-grain: light
Wood golden brown to pale red brown, sometimes dark veined. Pores and cracks filled with a yellow or white powder
PHYSICAL AND MECHANICAL PROPERTIES
These properties can vary significantly depending on the origin and growing conditions of the wood.
- Density *: 0.80
- Monnin hardness *: 7.7
- Coef. Volume shrinkage: 0.44%
- Stability in service: stable
- Total radial shrinkage: 3.0%
- Fiber saturation point: 19%
- Total tangential shrinkage: 4.4%
(*: 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: 4 – in contact with soil or fresh water
SAWING AND MACHINING
- Blunting effect: quite significant
- Teeth for sawing: stellate teeth
- Machining tools: tungsten carbide
Uncoiling recommended only for decorative veneer. Dust can cause irritation. Some difficulties due to the counter-thread (tearing).
ASSEMBLY
- Nailing – Screwing: good hold, pre-boring necessary
- Gluing: correct
Tends to split when nailing. Bonding requires care because of the density and the presence of resins.
USES
Does not stain easily (yellow or white deposits). A plugging-porage is recommended in order to obtain a good finish.
shipbuilding
- exterior and interior carpentry
- stairs
- parquet
- bridges
- paneling
- siding
- furniture
- cooperage-winery
- heavy frame
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.
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