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MERSAWA (Anisoptera grossivenia)
Nombre comercial
Mersawa
Nombre científico (con autor)
Anisoptera grossivenia v. Slooten
Familia
Dipterocarpaceae
Nombres Comunes
Merkunyit (Sarawak); Mersawa kunyit (Malaysia); Damar kelasi (Indonesia); Kantooi (Indonesia); Cangal padi (Indonesia); Merbakau (Brunei Darussalam); Benchaloi (Brunei Darussalam); Venven (Vietnam); Krabak (Thailand); Krabak (United Kingdom); Pik (Thailand); Mersawa (Indonesia); Krabak (Spain); Krabak (United States of America); Mersawa (Malaysia); Krabak (France); Phdiek (Cambodia); Pengiran kasar (Sabah); Krabak (Germany); Mersawa (Germany); Palosapis (Philippines); Kaunghmu (Myanmar); Mersawa (Netherlands); Krabak (Netherlands); Mersawa (Papua New Guinea); Krabak (Italy)
DESCRIPCIÓN DEL ÁRBOL
Descripción botánica
It is a large tree up to 60 m tall. The bole is tall, straight and branchless for 14- to 30 m, up to 145 cm in diameter. The buttresses are of moderate size, spreading out as large surface roots.
Hábitat natural
A lowland dipterocarp forest species found growing on sandy clayey soils.
IDENTIFICACIÓN DE LA MADERA
Descripción anatómica de la madera
Wood diffuse porous. Vessels exclusively solitary (over 90%). Tangential diameter of vessel lumina 200 micras or more (large). Tyloses common. Vestured pits. Vessels per mm2 5 to 20. Vascular/vasicentric tracheides present. Simple perforation plates. Intervessel Apotracheal axial parenchyma diffuse and/or diffuse in aggregates. Paratracheal axial parenchyma scanty and/or vasicentric. Axial parenchyma scalariform. Larger rays more than 4 seriate. Sheath cells. 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 (Kribs-III). Fibers with distinctly bordered pits.
Disponibilidad
Status de protección por CITES
Unrestricted
DESCRIPCIÓN GENERAL DE LA MADERA
Color
The sapwood is not clearly differentiated from the heartwood, which is pale yellow to yellowish brown.
Indice de Color (1= Negro, violeta; 7= Amarillo claro, blanco)
6
Grano
This species is reported to have interlocked grain.
Veta
The texture is medium to coarse.
Durabilidad Natural
The natural durability ranges from moderate to perishable. It is rapidly attacked if unprotected.
Indice de Durabilidad Natural (1=Muy alta, 7=Muy baja)
6
Contenido de sílice
Silica Content: It is reported to have silica. Contents over 0.05% may affect wood processing. Silica Value: 0
PROPIEDADES FÍSICAS DE LA MADERA
Densidad Básica (Peso anhidro/Vol. saturado) (g/cm³)
0.65
Densidad seca al aire (Peso y volúmen CH12%) (g/cm³)
0.73
Defectos por secado
Ease of Drying: Seasoning is reported as good. Drying Defects: Risk of slight checking or twisting.
Calendario de Secado
JP-2; UK-E
PROPIEDADES QUÍMICAS DE LA MADERA
PROPIEDADES MECÁNICAS DE LA MADERA
TRABAJABILIDAD
Aserrado
The cutting resistance can be reduced by using correct saw profiles and specially hardened saw teeth. Stellite tipped saws are necessary.
Corte de chapa rotativa
Peeling yields good quality veneer, although the veneer dries slowly and with slight buckling.
Chapa tranchada
Peeling yields good quality veneer, although the veneer dries slowly and with slight buckling.
Pérdida de filo_romado
The wood has a severe blunting effect.
Maquinado general
It is easy to work, but if interlocked grain is present sharp cutters are essential.
Cepillado
The planed surface is smooth when sharp tools are used.
Taladrado
Boring operations are rather easy.
Clavado
Nailing is reported as easy.
Encolado
Gluing behavior is reportedly good.
Acabado
This species is reported to be easy to finish.
Usos Reportados
USOS FINALES (RESUMEN)
HOUSING GENERAL, beams, frames, panelling, FURNITURE AND CABINETS, PLYWOOD AND VENEER, PACKING, CONTAINERS, truck bodies, truck flooring, NAVAL CONSTRUCTION
VIVIENDA GENERAL
- 10 - Silica in Timbers
vigas
- 11 - Prospect: The wood database
Marcos
- 16 - Woods of the World
Paneles
- 18 - W3TROPICOS Missouri Botanical Garden
MUEBLES Y GABINETES
- 21 - Tropical timbers of the world. Part III-Southeast Asian and Oceanian Species.
TABLEROS Y CHAPAS
- 25 - Directory of Timber Trade Malaysia
PALLETS_EMBALAJES
- 45 - Recopilación y Análisis de Estudios Tecnológicos de Maderas Peruanas
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
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