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AIéLé (Canarium schweinfurthii)
Nom commercial
Aiélé
Nom scientifique (avec auteur)
Canarium schweinfurthii Engl.
Famille
BURSERACEAE
Noms communs (pays)
Billi (Sierra Leone); Eyere (Ghana); Bediwuana (Ghana); Aiélé (Côte d`Ivoire); African canarium (United Kingdom); Canarium (Germany); Aiélé (Germany); Mbidikala (Zaire); Bidikala (Zaire); Ovili (Gabon); Abeul (Gabon); Abë (Equatorial Guinea); Mbili (Congo); Abel (Cameroon); Mwafu (Uganda); Mbili (Angola); Aiélé
Synonymes du nom scientifique (avec auteurs)
Canarium velutinum Guillemin; Canarium thollonianum Guillemin; Canarium occidentale A. Chev.
DESCRIPTION DE L'ARBRE
Description botanique
The tree reaches a height of 46 m, with a trunk diameter up to 150 cm. The boles attains 25 m and more in length.
Habitat naturel
Canarium schweinfurthii occurs chiefly in moist equatorial forests.
Répartition naturelle
From Sierra Leone to Sudan, to Angola and to Tanganyika Lake.
IDENTIFICATION DU BOIS
Description anatomique du bois
Wood diffuse porous. Occasionally vessels exclusively solitary (over 90%). Tangential diameter of vessel lumina 200 micras or more (large). Tyloses thin walled. Non-vestured pits. Vessels per mm2 less than 6 (rare). Simple perforation plates. Vessel-ray pits coa Paratracheal axial parenchyma scanty and/or vasicentric. 4 to 10 rays per mm (medium). Rays non-storied. Rays 1 to 4 seriate. Silica bodies in upright and/or square ray cells. Body ray cells procumbent with one row of upright and/or square marginal cells (Kribs-III). Septate fibers present. Fibers with simple to minutely bordered pits.
Disponibilité
Statut CITES
Unrestricted
DESCRIPTION GÉNÉRALE DU BOIS
Odeur
Light and pleasant odor.
Teinte
The sapwood is white to pale straw, it has a thickness of up to 10 cm. The heartwood is pale pinkish brown to light pinkish yellow, it is not clearly demarcated.
Index de Teinte (1 = Noir, 7 = Jaune clair)
5
Grain
The grain is highly and systematically interlocked; special care is needed when drying because of frequent risks of distortion.
Texture
This wood has a somewhat coarse texture.
Durabilité naturelle
Not durable; important risks of decay attacks at any processing step, from logs up to final products. It must receive preservative treatment. Sensible to termites attack. Heartwood is sensible to Lyctus attacks.
Index de durabilité naturelle (1 = Très élevée, 7 = Très faible)
5
Tensions internes de croissance
No growth stresses are reported in this species.
Teneur en silice
Silica Content: It is reported to have silica. Contents over 0.05% may affect wood processing. Silica Value: 0.12
Résistance à l'imprégnation
Nearly impossible to treat with a too much low penetration of the preservative substances.
PROPRIÉTÉS PHYSIQUES DU BOIS
Densité basale ou gravité spécifique (poids anhydre/vol. saturé) (g/cm³)
0.45
Densité sèche à l'air (poids et volume à 12%TH) (g/cm³)
0.49
Retrait tangentiel total (saturé à 0%TH) (%)
9.9
Retrait radial total (saturé à 0%TH) (%)
5.9
Défauts dus au séchage
Ease of Drying: The wood is easy to air dry and kiln dry. Drying Defects: Sometimes it is liable to develop fine long surface cracks.
Calendrier de séchage en séchoir recommandé
FR-11
Ratio de stabilité dimensionnelle (% retrait tangentiel total/% retrait radial total)
1.7
Calendrier de séchage en séchoir
http://www.tropicaltimber.info/wp-content/uploads/2015/09/KD_French.pdf
PROPRIÉTÉS CHIMIQUES DU BOIS
PROPRIÉTÉS MÉCANIQUES DU BOIS
Résistance à la flexion (module de rupture_MOR) 12%TH (kgf/cm²)
596
Rigidité (module d'élasticité_ MOE) 12%TH (kgf/cm²)
106948
Résistance à la compression parallèle à la fibre 12%TH (kgf/cm²)
368
Résistance à la compression perpendiculaire à la fibre 12%TH (kgf/cm²)
41
Résistance au cisaillement (radial) 12%TH (kgf/cm²)
65
Dureté Janka (latérale) 12%TH (kgf)
290
Dureté Janka (extrémités) 12%TH (kgf)
390
OUVRABILITÉ
Sciage
It is easy to saw.
Coupe de placage de déroulage
Suitable for peeling without treatment.
Placage tranche
Suitable for peeling without treatment.
Effet d'émoussement
Moderate blunting effect; stellited blades for sawing and carbide tools for machining are advised.
Usinage
Possible difficulties caused by interlocked grain are reported.
Rabotage
Easy; no particular problems.
Moulurage
Easy; no particular problems.
Perçage
Easy; no particular problems.
Mortaisage
Easy; no particular problems.
Clouage
No particular problem.
Collage
Glues well if basic gluing technical rules are followed.
Ponçage
Difficult to obtain very good results because of interlocked grain.
Polissage
Needs pre-coating.
Cintrage à la vapeur
Steam bending is difficult.
Compatibilité avec outils manuels
No particular problems.
UTILISATIONS
UTILISATIONS FINALES (RÉSUMÉ)
HOUSING GENERAL, boards, frames, steps, panelling, fittings, shutter boards, FURNITURE AND CABINETS, common furniture, PLYWOOD AND VENEER, faces, cores, PACKING, heavy packing, pallets, OTHER AND MUSICAL INSTRUMENTS, wheel, door core, coffin
MEUBLES ET M. DE RANGEMENT
- 10 - Silica in Timbers
Planches
- 13 - Dry kiln schedules for commercial woods. Temperate and tropical. Section III. Latin American (Mexico, Central, and South America) Woods–Conventional Temperatures
Cadres
- 16 - Woods of the World
Marches
- 17 - Tree Conservation Database
Panneaux
- 18 - W3TROPICOS Missouri Botanical Garden
Accessoires en bois
- 19 - Silica in Timbers
Volets
- 20 - Prospect: The wood database
MEUBLES ET M. DE RANGEMENT
- 21 - Tropical timbers of the world. Part III-Southeast Asian and Oceanian Species.
Meubles ordinaire
- 23 - Handbook of Hardwoods
PANNEAUX ET PLACAGE
- 25 - Directory of Timber Trade Malaysia
Faces (de placage)
- 26 - Annual Review and Assessment of the World Timber Situation 1998-ITTO
âmes (de placage)
- 27 - Embassy of Brazil in Japan
EMBALLAGE
- 45 - Recopilación y Análisis de Estudios Tecnológicos de Maderas Peruanas
Embal_lourd
- 47 - Arvores Brasileiras
Emballage, palettes
- 48 - The strength properties of timbers
Roués
- 75 - Tropenholzer
âme_porte
- 76 - Descripción General y Anatómica de 105 Maderas del Grupo Andino.
Cercueils
- 78 - Amazonian Timbers for the International Market
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