KAURI (Agathis borneensis)
Nom commercial
Kauri
Nom scientifique (avec auteur)
Agathis borneensis Warb.
Famille
ARAUCARIACEAE
Noms communs (pays)
Almaciga (Philippines); Agathis indiano (Italy); Pin de cauri (France); East Indian kauri (United States of America); Indisk agathis (Sweden); Agathis; Damar (Indonesia); Bindang (Sarawak); East Indian kauri (United Kingdom); Damar (Netherlands); Kayu sigi (Indonesia); Damar minyak (Malaysia); Borneo kauri (United Kingdom); Agathis indico (Spain); Indische agathis (Netherlands); Agahis indien (France); Borneo kauri (United States of America); Mangilan (Sabah); Indische agathis (Germany)
Synonymes du nom scientifique (avec auteurs)
Agathis latifolia Meijer Drees; Agathis beccarii Warb.; Agathis alba (Lam.) Foxw.
DESCRIPTION DE L'ARBRE
Description botanique
It is an emergent tree up to 55 m tall and 100 cm in diameter. The bole is straight and cylindrical, up to two thirds of the length or more.
Habitat naturel
Agathis borneensis is found scattered in the upland rain forest, up to 1,200 m of altitude in Malaysia and Sumatra. Pure stands are reported in Borneo at sandy peat places. It is known or inferred that the harvesting of specimens from the wild for interna
Répartition naturelle
It ranges from Indo-China to Malaysia, Sarawak, Sabah and Papua New Guinea.
Existence de plantations?
Plantations are reported in Java.
IDENTIFICATION DU BOIS
Description anatomique du bois
Rays very fine, not visible with the naked eye, generally not prominent on the radial surface. Rays 6-8, uniseriate, 2-7 cells high.
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Vue macroscopique du bois (plan radiale)
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Vue microscopique d'une section transversale du bois
Disponibilité
Statut CITES
Unrestricted
DESCRIPTION GÉNÉRALE DU BOIS
Odeur
It has no taste, but caramel-like odor.
Teinte
The sapwood is not distinct. The heartwood is straw or pale yellow-brown, sometimes with a pinkish tinge.
Grain
The grain is typically straight.
Texture
The wood is typically fine in texture.
Luster
Luster is reported to be moderate.
Durabilité naturelle
Stock is subject to attack by pinhole borers, termites and marine borers.
Teneur en silice
Silica Content: Non-siliceous. Silica Value: 0
Résistance à l'imprégnation
The sapwood is permeable, the heartwood is moderately resistant to preservative treatment.
PROPRIÉTÉS PHYSIQUES DU BOIS
Densité basale ou gravité spécifique (poids anhydre/vol. saturé) (g/cm³)
0.4463063685
Densité sèche à l'air (poids et volume à 12%TH) (g/cm³)
0.48
Retrait tangentiel total (saturé à 0%TH) (%)
6.2
Retrait radial total (saturé à 0%TH) (%)
3.8
Défauts dus au séchage
Ease of Drying: Drying is slow and rather difficult. Boards of 15 mm thick take about 3 months to air dry. Drying Defects: Resin exudation is reported to be common, especially at high temperatures. It is prone to cupping, bowing, springing and end checking. Usually there is little splitting, surface checking, staining and insect attack during drying. Kiln Schedules: Schedule proposed for Apitong.
Calendrier de séchage en séchoir recommandé
UK-J; US-T7-B3
Ratio de stabilité dimensionnelle (% retrait tangentiel total/% retrait radial total)
1.6
PROPRIÉTÉS CHIMIQUES DU BOIS
PROPRIÉTÉS MÉCANIQUES DU BOIS
Résistance à la flexion (module de rupture_MOR) 12%TH (kgf/cm²)
503
Résistance à la compression parallèle à la fibre 12%TH (kgf/cm²)
334
Résistance au cisaillement (radial) 12%TH (kgf/cm²)
25
Dureté Janka (latérale) 12%TH (kgf)
148
Dureté Janka (extrémités) 12%TH (kgf)
225
OUVRABILITÉ
Sciage
Wood of this species is easy to cut.
Coupe de placage de déroulage
This wood can be peeled using a 90 degrees angle without pretreatment to produce veneer of good quality.
Placage tranche
This wood can be peeled using a 90 degrees angle without pretreatment to produce veneer of good quality.
Rabotage
Planing operations are rather easy.
Moulurage
Molding of this species is reported to be easy.
Perçage
This species is easy to bore.
Mortaisage
Mortising of this species is reported to be easy.
Clouage
It is easy to nail.
Collage
It is reported to be easy to glue.
Ponçage
It is easy to sand.
Applications d'un revêtement
It is easy to paint or varnish.
UTILISATIONS
UTILISATIONS FINALES (RÉSUMÉ)
HOUSING GENERAL, boards, flooring, panelling, FURNITURE AND CABINETS, PLYWOOD AND VENEER, TOOLS, tool handles, OTHER AND MUSICAL INSTRUMENTS, pencil
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
Planchers
- 14 - Handbook of Hardwoods
Panneaux
- 18 - W3TROPICOS Missouri Botanical Garden
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
OUTILS
- 42 - Utilización Industrial de Nuevas Especies Forestales en el Perú.
Outils_manches
- 43 - Maderas de Bolivia (Características y Usos de 55 Maderas Tropicales)
Crayon
- 67 - Maderas latinoamericanas. VIII, Calophyllum brasilense, Couratari panamensis, Dendropanax arboreum y Bombacopsis sessilis
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