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Reference color: dark red
Sapwood: quite distinct
PHYSICAL AND MECHANICAL PROPERTIES
These properties can vary significantly depending on the origin and growing conditions of the wood.
- *: 1.06
- Monnin hardness *: 10.7
- Coef. Volume shrinkage: 0.69%
- Stability in service: not very stable
- Total radial shrinkage: 7.3%
- Fiber saturation point: 28%
- Total tangential shrinkage: 10.3%
(*: 12% humidity)
- Mushrooms: cl 2 – 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 the ground, or fresh water
Transition wood has varying durability. Good resistance to tarets in temperate waters but moderate resistance in warm waters. This species is therefore considered “moderately durable” with regard to marine borers and only covers biological risk class 5 for use in temperate or cold marine environments.
SAWING AND MACHINING
- Blunting effect: quite significant
- Teeth for sawing: stellated teeth
- Machining tools: tungsten carbide
Requires power. Sawing by turning recommended (internal tensions). Some difficulties in planing due to the counter grain.
- Nailing – Screwing: good hold, pre-boring necessary
- Gluing: correct
The properties of the bond are variable. Gluing requires care (dry wood and good surface condition) because the wood is very dense.
In the event of permanent humidity, transition wood should be excluded.
- hydraulic works (in fresh water and maritime environment)
- parquet floors (heavy or industrial)
- vehicle or container bottom
- 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