BUNDJI (Allanblackia stanerana)
Nom commercial
Bundji
Nom scientifique (avec auteur)
Allanblackia stanerana Exell et Mendonca
Famille
CLUSIACEAE
Noms communs (pays)
Orogbo erin (Nigeria); Izeni (Nigeria); Ouotéra (Côte d`Ivoire); Sangoma (Gabon); Nyonne (Cameroon); Nsangomo (Cameroon); Mbawandjé (Cameroon); Ebungo matatolo (Cameroon); Bianji (Cameroon); Anyoe (Cameroon); Bundji
DESCRIPTION DE L'ARBRE
Description botanique
The tree reaches a height of 23 m. The bole is straight, cylindrical and unbuttressed, with occasionally swellings on butt. Trunk diameter attains 70 to 80 cm.
Habitat naturel
Allanblackia stanerana grows in dense forests.
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 sim Paratracheal axial parenchyma scanty and/or vasicentric. Axial parenchyma in thick bands. Non-crystals in axial parenchyma cells. Crystal sand. 5 to 8 cells per parenchyma strand. Axial parenchyma bands under 4 per mm. 4 to 10 rays per mm (medium). Rays of two distinct sizes. Rays non-storied. Larger rays more than 4 seriate. Heterogeneous rays and/or multiseriate heterogeneous rays. Non-septate fibers. Fibers with distinctly bordered pits.
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Vue macroscopique du bois (plan tangentiel)
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Vue microscopique d'une section transversale du bois
Disponibilité
Statut CITES
Unrestricted
DESCRIPTION GÉNÉRALE DU BOIS
Teinte
The sapwood is white-pink. The heartwood is yellow, it is clearly demarcated.
Grain
Straight; grain has no particular influence on drying, machining and finishing qualities.
Texture
The wood is typically medium in texture.
Luster
Timber of this species is low in luster.
Durabilité naturelle
Not durable; important risks of decay attacks at any processing step, from logs up to final products. It must receive preservative treatment. 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.
PROPRIÉTÉS PHYSIQUES DU BOIS
Densité basale ou gravité spécifique (poids anhydre/vol. saturé) (g/cm³)
0.61
Densité sèche à l'air (poids et volume à 12%TH) (g/cm³)
0.67
Retrait tangentiel total (saturé à 0%TH) (%)
8.1
Retrait radial total (saturé à 0%TH) (%)
3.3
Défauts dus au séchage
Ease of Drying: The wood air dries fairly slowly. Boards of 13 mm thick take 3 months to air dry. Drying Defects: There is a moderate risk of cupping and splitting and a high risk of staining during seasoning.
Ratio de stabilité dimensionnelle (% retrait tangentiel total/% retrait radial total)
2.5
PROPRIÉTÉS CHIMIQUES DU BOIS
PROPRIÉTÉS MÉCANIQUES DU BOIS
Résistance à la flexion (module de rupture_MOR) 12%TH (kgf/cm²)
982
Rigidité (module d'élasticité_ MOE) 12%TH (kgf/cm²)
137639
Résistance à la compression parallèle à la fibre 12%TH (kgf/cm²)
608
Résistance à la compression perpendiculaire à la fibre 12%TH (kgf/cm²)
80
Dureté Janka (latérale) 12%TH (kgf)
556
Dureté Janka (extrémités) 12%TH (kgf)
656
OUVRABILITÉ
Sciage
It is easy to saw.
Coupe de placage de déroulage
Not suitable for veneering.
Placage tranche
Not suitable for veneering.
Effet d'émoussement
Slight blunting effect; ordinary tools can be used for sawing and machining.
Usinage
Machining of this species is reportedly easy.
Rabotage
Easy; no particular problems.
Moulurage
Moderately easy; tools must be cautiously sharpened.
Tournage
30
Perçage
Moderately easy; tools must be cautiously sharpened.
Mortaisage
Moderately easy; tools must be cautiously sharpened.
Clouage
No particular problem.
Collage
Glues well if basic gluing technical rules are followed.
Ponçage
Easy to perform; it gives good results.
Polissage
Can be polished without surface preparation.
Compatibilité avec outils manuels
No particular problems.
UTILISATIONS
UTILISATIONS FINALES (RÉSUMÉ)
HOUSING GENERAL, flooring, parquet, FURNITURE AND CABINETS, cabinets, PLYWOOD AND VENEER, TURNING, TOOLS, agricultural tools, PACKING, OTHER AND MUSICAL INSTRUMENTS, handicrafts, particleboard
MEUBLES ET M. DE RANGEMENT
- 10 - Silica in Timbers
Planchers
- 14 - Handbook of Hardwoods
Parquets
- 15 - Empire Timbers
MEUBLES ET M. DE RANGEMENT
- 21 - Tropical timbers of the world. Part III-Southeast Asian and Oceanian Species.
Armoires
- 24 - Empire Timbers
PANNEAUX ET PLACAGE
- 25 - Directory of Timber Trade Malaysia
Tournage
- 30 - Embassy of Honduras in Japan
OUTILS
- 42 - Utilización Industrial de Nuevas Especies Forestales en el Perú.
Outils_agric
- 44 - Atlas of Peruvian Woods
EMBALLAGE
- 45 - Recopilación y Análisis de Estudios Tecnológicos de Maderas Peruanas
Artisanat
- 66 - Maderas latinoamericanas. VII. Caracteristicas anatomicas. propiedades fisicomecanicas, de secado, y tratabilidad de la madera juvenil de Cordia alliodora (Ruiz & Pav. Oken.)
Panneaux de particules
- 80 - Estudio Integral de la Madera para Construcción
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