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SAQUI-SAQUI, CEIBA TOLUA (Bombacopsis quinata)
Nom commercial
Saqui-saqui, Ceiba tolua
Nom scientifique (avec auteur)
Bombacopsis quinata (Jacq.) Dugand
Famille
BOMBACACEAE
Noms communs (pays)
Tolua; Tolu; Sumauma de tirra ferme; Sumauma; Coton; Ceiba tolua; Ceiba del tolu; Ceiba colarado; Cedrillo; Cartageno; Cedro Macho (Costa Rica); Huimba (Peru); Ceiba (Ecuador); Ceiba Colorada; Caoba Bastarda; Cedro Dulce (Venezuela); Saqui-Saqui (Venezuela); Pochote; Murea (Venezuela); Ceiba Tolúa (Colombia); Cedro Macho (Colombia); Cedro Espinoso (Panama); Cedro Espino; Sumauma De Tierra Firme; Saqui; Lanillo; Masguara; Jaris; Ceiba Tolú; Ceiba Macho; Espinoso; Mahot Coton (United States of America)
Synonymes du nom scientifique (avec auteurs)
Pachira quinata (Jacq.) W.S. Alverson; Bombax quinatum Jacq
DESCRIPTION DE L'ARBRE
Description botanique
It is reported to attain heights of up to 40 m, with cylindrical and straight boles up to 20 m long. The diameter is commonly 80 cm in diameter. The tree is covered with prickles, and it usually develops irregular stems.
Habitat naturel
Bombacopsis quinata is found in tropical rain forests, in well drained soils, on the upper slopes of hills and ridges. Burning, overexploitation of the timber and increasing settlement and conversion of the habitat for agriculture are causing population a
Répartition naturelle
This species is found from southern Honduras to northern Colombia and Venezuela, it occurs in the more open forests of Nicaragua, Costa Rica, and Panama.
Existence de plantations?
The species is grown in small-scale species trials in Kenya and the Solomon Islands.
IDENTIFICATION DU BOIS
Description anatomique du bois
Wood diffuse porous. Vessels solitary and in short radial multiples. Tangential diameter of vessel lumina 200 micras or more (large). Tyloses common. Vessels per mm2 less than 6 (rare). Simple perforation plates. Vessel-ray pits larger than the intervessel pits Occasionally axial parenchyma in marginal or in seemingly marginal bands. Apotracheal axial parenchyma diffuse and/or diffuse in aggregates. Axial parenchyma storied. Prismatic crystals in non-chambered axial parenchyma cells. Occasionally prismatic crystals 4 to 10 rays per mm (medium). Occasionally rays storied. Larger rays more than 4 seriate. Occasionally prismatic crystals in the ray cells. Heterogeneous rays and/or multiseriate heterogeneous rays. Body ray cells procumbent with one row of upright and/or squa Septate fibers present. Fibers with simple to minutely bordered pits.
Disponibilité
Statut CITES
Unrestricted
DESCRIPTION GÉNÉRALE DU BOIS
Odeur
It has no discernible odor.
Teinte
The sapwood is pale yellow-white in color, it is distinct from the heartwood. The heartwood is reddish brown.
Index de Teinte (1 = Noir, 7 = Jaune clair)
5
Grain
The grain is straight to interlocked.
Texture
The wood is coarse textured.
Luster
Luster is described as medium.
Durabilité naturelle
It is resistant to white-rot fungi and very durable to brown-rot fungi, but vulnerable to attack by dry-wood and subterranean termites. It has good resistance to marine borers.
Index de durabilité naturelle (1 = Très élevée, 7 = Très faible)
3
Résistance à l'imprégnation
The heartwood is very difficult to treat with preservatives. The sapwood is moderately permeable with irregular penetration.
PROPRIÉTÉS PHYSIQUES DU BOIS
Densité basale ou gravité spécifique (poids anhydre/vol. saturé) (g/cm³)
0.47
Densité sèche à l'air (poids et volume à 12%TH) (g/cm³)
0.51
Retrait tangentiel total (saturé à 0%TH) (%)
5.7
Retrait radial total (saturé à 0%TH) (%)
3.7
Défauts dus au séchage
Ease of Drying: Drying is reported to be rapid with almost no degrade.
Calendrier de séchage en séchoir recommandé
JUNAC-A
Ratio de stabilité dimensionnelle (% retrait tangentiel total/% retrait radial total)
1.5
Calendrier de séchage en séchoir
http://www.tropicaltimber.info/wp-content/uploads/2015/08/KD_JUNAC_SPA.pdf
PROPRIÉTÉS CHIMIQUES DU BOIS
PROPRIÉTÉS MÉCANIQUES DU BOIS
Résistance à la flexion (module de rupture_MOR) 12%TH (kgf/cm²)
714
Rigidité (module d'élasticité_ MOE) 12%TH (kgf/cm²)
97956
Résistance à la compression parallèle à la fibre 12%TH (kgf/cm²)
393
Résistance à la compression perpendiculaire à la fibre 12%TH (kgf/cm²)
48
Résistance au cisaillement (radial) 12%TH (kgf/cm²)
58
Dureté Janka (latérale) 12%TH (kgf)
299
Dureté Janka (extrémités) 12%TH (kgf)
379
OUVRABILITÉ
Sciage
The wood is reported to have low resistance to cutting.
Coupe de placage de déroulage
This species is interesting for peeling.
Placage tranche
This species is interesting for peeling.
Effet d'émoussement
Blunting effect on cutting edges is rated as slight.
Rabotage
Planing characteristics are reported to be good.
Perçage
The wood is reported to have good boring properties.
Clouage
It has good nailing characteristics, with good nail holding.
Collage
The wood is reported to glue well.
Ponçage
Sanding properties are reported to be very good.
Finissage
It is reported to yield smooth surfaces in finishing.
Teinture
Staining properties are rated as good.
Compatibilité avec outils manuels
Response to hand tools is rated as good.
UTILISATIONS
UTILISATIONS FINALES (RÉSUMÉ)
HOUSING GENERAL, panelling, fittings, shutter boards, FURNITURE AND CABINETS, PLYWOOD AND VENEER, common veneer, OTHER AND MUSICAL INSTRUMENTS, matches, moldings, particleboard, cementboard
MEUBLES ET M. DE RANGEMENT
- 10 - Silica in Timbers
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.
PANNEAUX ET PLACAGE
- 25 - Directory of Timber Trade Malaysia
Placage ordinaire
- 29 - Embassy of Ecuador in Japan
Allumette
- 71 - Proprietes physiques et mecaniques des bois tropicaux, premier supplement
Moulures
- 79 - Padronização da Nomenclatura Comercial Brasileira das Madeiras Tropicais Amazônicas, Sugestão
Panneaux de particules
- 80 - Estudio Integral de la Madera para Construcción
Cementboard
- 81 - Madeiras da Amazônia: descrição do lenho de 40 espécies ocorrentes na Floresta Nacional do Tapajós
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