Doussié

1.001.10 (-9%)

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Name: AFZELIA
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

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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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1.001.10 (-9%)

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