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BEKAK (Aglaia cucullata)
Nombre comercial
Bekak
Nombre científico (con autor)
Aglaia cucullata Roxb.
Familia
MELIACEAE
Nombres Comunes
Solomon Island amoora; Rose kamala; Pacific maple; New Guinea amoora; Natmi; Muta; Mua mua; Maoa; Manatapuku; Lulua; Garotai; Bor-amari; Bekak; Amur; Pacific maple (United States of America); Bengang (Malaysia); Kato (Philippines); Malakamote (Philippines); Pacific maple (United Kingdom); Myauk le seik (Myanmar); Nyireh batu (Brunei Darussalam); Che (Thailand); Daeng nam (Thailand); Katong-baluga (Philippines); Goi (Vietnam); Lota amara (India); Latmi (India); Amari (India); Namota (Solomon Islands); Mawa (Solomon Islands); Amoora (Andaman Islands); Katong-haung (Philippines); Mua-mua (Solomon Islands); Thiteni (Myanmar); Chaya-kaya (Myanmar); Manga-daeng (Thailand); Amoora (Pakistan); Julungan (Sarawak); Tasua (Thailand); Maota (Andaman Islands); Amoora (Papua New Guinea); La-kihan (Philippines); Mawa (Andaman Islands)
Nombres científicos sinónimos (con autores)
Amoora cucullata Roxb.; Amoora aherniana Merr.; Aglaia tripetala Merr.
DESCRIPCIÓN DEL ÁRBOL
Descripción botánica
It is a small to medium-sized, sometimes large tree up to 30 m tall. The bole is branchless for up to 24 m, up to 100 cm in diameter. The buttresses are up to 3 m high.
Hábitat natural
This widespread tree is the only member of the genus found in areas of mangrove, nipah (Nypa fruticans) swamp and estuaries. It is found in trade as Pacific Maple.
Distribución natural
It ranges from Thailand to the Solomon Islands and New Guinea.
IDENTIFICACIÓN DE LA MADERA
Descripción anatómica de la madera
Wood diffuse porous. Tangential diameter of vessel lumina 200 micras or more (large). Colored deposits in heartwood vessels. Vessels per mm2 5 to 20. Simple perforation plates. Vessel-ray pits similar to intervessel pits in size and shape. Intervessel pits smal Apotracheal axial parenchyma diffuse and/or diffuse in aggregates. Paratracheal axial parenchyma scanty and/or vasicentric. Prismatic crystals in chambered axial parenchyma cells and/or in fibers. Homogeneous rays and/or sub-homogeneous rays (all ray cells procumbent). Body ray cells procumbent with mostly 2 to 4 rows of upright and/or square marginal cells (Kribs-II). Body ray cells procumbent with one row of upright and/or square marginal cells (Kr Septate fibers present. Fibers with distinctly bordered pits.
Disponibilidad
Status de protección por CITES
Unrestricted
DESCRIPCIÓN GENERAL DE LA MADERA
Olor
The wood often has a fragrant, sometimes even pungent, odor when fresh, resembling both cedar and camphor.
Color
The sapwood is not sharply differentiated, it ranges from pale pink to light reddish. The heartwood is light reddish brown when fresh, it also darkens to wine red to walnut brown.
Grano
The grain is straight or slightly interlocked.
Veta
The texture is fine, but the Indian stock is somewhat coarser.
Brillo
The wood surface is moderate in luster.
Durabilidad Natural
The natural durability is moderate, it is vulnerable to powder post beetles.
Indice de Durabilidad Natural (1=Muy alta, 7=Muy baja)
3
Dificultad para impregnar
The heartwood is extremely resistant to pressure treatment, the sapwood shows some penetration of preservatives.
PROPIEDADES FÍSICAS DE LA MADERA
Densidad Básica (Peso anhidro/Vol. saturado) (g/cm³)
0.52899354
Densidad seca al aire (Peso y volúmen CH12%) (g/cm³)
0.58
Contracción Tangencial Total (Saturado hasta anhidro) (%)
10.7
Contracción Radial Total (Saturado hasta anhidro) (%)
6.8
Defectos por secado
Ease of Drying: Air seasoning is reported to be easy. Boards 10 mm thick take 1.5 months to air dry from 70% to 15% moisture content. Drying Defects: Dries easily with little tendency to check or distort. Kiln Schedules: It takes about 6 days to kiln dry 25 mm thick boards from 50% to 10% moisture content.
Calendario de Secado
JP-26
Estabilidad Dimensional (Contracción Total Tangencial %/Contracción Total Radial %)
1.6
PROPIEDADES QUÍMICAS DE LA MADERA
PROPIEDADES MECÁNICAS DE LA MADERA
Resistencia a flexión (Módulo de ruptura) CH12% (kgf/cm²)
895
Rigidez (Módulo de elasticidad) CH12% (kgf/cm²)
117712
Resistencia a la compresión paralela a la fibra CH12% (kgf/cm²)
533
Resistencia a la compresión perpendicular a la fibra CH12% (kgf/cm²)
39
Cizallamiento radial CH12% (kgf/cm²)
110
Dureza Janka (lados) CH12% (kgf)
496
Dureza Janka (extremos) CH12% (kgf)
667
TRABAJABILIDAD
Aserrado
This species is easy to saw.
Corte de chapa rotativa
It is reported to peel and slice satisfactorily, but the veneer may warp severely during drying.
Chapa tranchada
It is reported to peel and slice satisfactorily, but the veneer may warp severely during drying.
Maquinado general
This species is easy to machine.
Cepillado
Because of its grain it requires sharp and fine set planes, however, planed surfaces are smooth and lustrous.
Torneado
30
Clavado
This species is reported to have a good nailing behavior.
Encolado
This species is easy to glue.
Acabado
Wood of this species is easy to finish.
Usos Reportados
USOS FINALES (RESUMEN)
HOUSING GENERAL, boards, FURNITURE AND CABINETS, cabinets, PLYWOOD AND VENEER, faces, TURNING, SPORTS, CONTAINERS, truck bodies, truck flooring, NAVAL CONSTRUCTION, OTHER AND MUSICAL INSTRUMENTS, moldings
VIVIENDA GENERAL
- 10 - Silica in Timbers
Tablas
- 13 - Dry kiln schedules for commercial woods. Temperate and tropical. Section III. Latin American (Mexico, Central, and South America) Woods–Conventional Temperatures
MUEBLES Y GABINETES
- 21 - Tropical timbers of the world. Part III-Southeast Asian and Oceanian Species.
Gabinetes
- 24 - Empire Timbers
TABLEROS Y CHAPAS
- 25 - Directory of Timber Trade Malaysia
Caras
- 26 - Annual Review and Assessment of the World Timber Situation 1998-ITTO
Torneado
- 30 - Embassy of Honduras in Japan
IMPLEMENTOS DEPORTIVOS
- 38 - Annual Review and Assessment of the World Timber Situation 1998-ITTO
Carrocería de camión
- 53 - Timbers of the New World
Pisos de vagones_contenedores
- 54 - Bulletin of the Government Forest Experiment Station N.157: Identification of Tropical Woods
CONSTRUCCIÓN NAVAL
- 55 - Tropical Timber Atlas of Latin America
Molduras
- 79 - Padronização da Nomenclatura Comercial Brasileira das Madeiras Tropicais Amazônicas, Sugestão
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