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MEPEPE (Albizia zygia)
Nom commercial
Mepepe
Nom scientifique (avec auteur)
Albizia zygia Macbr.
Famille
LEGUMINOSAE
Noms communs (pays)
pau raio (Guinea-Bissau); Toumbou (Guinea); Bangbaye (Côte d`Ivoire); West African Albizia (United Kingdom); Mushebele (Zaire); Kasa-kasa (Zaire); Saliémo (Cameroon); Omulera (Uganda); Omulera (Tanzania); Omulera (Kenya); Omulera (Ethiopia); Mepepe (Mozambique); Muanza (Angola); Wochi; Uwowe; Tshimbambabamba; Tshikumbamkumba; Tshikumankassa; Tshijimbu; Sakachi; Red nongo; Pampena; Ouochi; Oshanga; Okuru; Okuro; Ohuru; Nongo; Munzania; Kumbamba; Kulo; Kpule; Kouket; Koli; Kapun; Kakpara; Kababa; Ehores; Bulala; Bakbwe; Ayinreta; Angoyen; Mepepe
Synonymes du nom scientifique (avec auteurs)
Zygia brownei Walp.; Inga zygia DC.; Albizia brownei (Walp.) Oliv.
DESCRIPTION DE L'ARBRE
Description botanique
The tree may reach a height of 40 to 50 m with a trunk diameter of 100 cm. The bole is well shaped or asymmetrical with short buttresses.
Habitat naturel
Albizia zygia is widely distributed. Mostly trees of the primary forest are exploited, but it is also common in secondary forests.
Répartition naturelle
Widely distributed throughout tropical Africa.
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). Vestured pits. Vessels per mm2 less than 6 (rare). Simple perforation plates. Vessel-ray pits similar to intervessel pits Paratracheal axial parenchyma scanty and/or vasicentric. Axial parenchyma lozenge-aliform. Prismatic crystals in chambered axial parenchyma cells and/or in fibers. 3 to 4 cells per parenchyma strand. 4 to 10 rays per mm (medium). Rays non-storied. Rays 1 to 4 seriate. Homogeneous rays and/or sub-homogeneous rays (all ray cells procumbent). Septate fibers present. Fibers with simple to minutely bordered pits.
Disponibilité
Statut CITES
Unrestricted
DESCRIPTION GÉNÉRALE DU BOIS
Teinte
The sapwood is white or white-yellow, it has a thickness of 5 cm. The heartwood is golden-yellow or light-brown, sometimes with a greenish tinge, it is clearly demarcated.
Grain
Straight or slightly interlocked, sometimes with an influence on further processing operations.
Texture
Medium texture is reported in this species.
Luster
Luster is usually low.
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
For this species no growth stresses are reported.
Teneur en silice
Silica Content: This timber is reported to have a negligible silica content. Silica contents over 0.05% may affect wood processing. Silica Value: 0
Résistance à l'imprégnation
Difficult to treat with only a low penetration of the preservative products.
PROPRIÉTÉS PHYSIQUES DU BOIS
Densité basale ou gravité spécifique (poids anhydre/vol. saturé) (g/cm³)
0.46
Densité sèche à l'air (poids et volume à 12%TH) (g/cm³)
0.50
Retrait tangentiel total (saturé à 0%TH) (%)
6.5
Retrait radial total (saturé à 0%TH) (%)
2.9
Défauts dus au séchage
Ease of Drying: The wood seasons well when not too rapidly dried. In India boards 2.5 cm thick took 9 months to air dry.
Calendrier de séchage en séchoir recommandé
FR-6
Ratio de stabilité dimensionnelle (% retrait tangentiel total/% retrait radial total)
2.2
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)
711
Rigidité (module d'élasticité_ MOE) 12%TH (kgf/cm²)
106645
Résistance à la compression parallèle à la fibre 12%TH (kgf/cm²)
452
Résistance à la compression perpendiculaire à la fibre 12%TH (kgf/cm²)
54
Dureté Janka (latérale) 12%TH (kgf)
306
Dureté Janka (extrémités) 12%TH (kgf)
407
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, beams, joists, boards, flooring, steps, panelling, fittings, shutter boards, FURNITURE AND CABINETS, common furniture, cabinets, TURNING, ornaments, turned furniture, cutlery, lasts, PACKING, heavy packing, pallets, OTHER AND MUSICAL INSTRUMENTS, handicrafts, door core, coffin
MEUBLES ET M. DE RANGEMENT
- 10 - Silica in Timbers
Pouters
- 11 - Prospect: The wood database
Solives
- 12 - Tropical timbers of the world. Part I-Tropical American Species
Planches
- 13 - Dry kiln schedules for commercial woods. Temperate and tropical. Section III. Latin American (Mexico, Central, and South America) Woods–Conventional Temperatures
Planchers
- 14 - Handbook of Hardwoods
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
Armoires
- 24 - Empire Timbers
Tournage
- 30 - Embassy of Honduras in Japan
Ornements
- 31 - Embassy of Colombia in Japan
Ornements
- 32 - Embassy of Cote d`Ivoire in Japan
Manches de couverts
- 33 - Embassy of Gabon in Japan
Formes à chaussures
- 34 - Embassy of Indonesia 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
Artisanat
- 66 - Maderas latinoamericanas. VII. Caracteristicas anatomicas. propiedades fisicomecanicas, de secado, y tratabilidad de la madera juvenil de Cordia alliodora (Ruiz & Pav. Oken.)
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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