PEREPAT DARAT (Combretocarpus rotundatus)
Nombre comercial
Perepat darat
Nombre científico (con autor)
Combretocarpus rotundatus (Miq.) Danser
Familia
ANISOPHYLLEACEAE
Nombres Comunes
Teruntum batu (Indonesia); Perepat (Indonesia); Perapat paya (Malaysia); Keruntum (Malaysia); Perapat hutan (Brunei Darussalam); Keruntum (Brunei Darussalam); Balak bekatan (Brunei Darussalam); Marapat (Indonesia); Perapat-perapat (Sabah); Keruntum (Sarawak)
Nombres científicos sinónimos (con autores)
Combretocarpus motleyi Hook. f.
DESCRIPCIÓN DEL ÁRBOL
Descripción botánica
It is a medium-sized to fairly large tree up to 40 m tall, 1 m in diameter. The trunk base has sometimes small stilt-roots or ( in swampy or water-logged sites ) with mats of rust-brown " air roots " ( in drier sites ) or with short, slender, upright, roo
Hábitat natural
This monotypic genus is restricted to all types of peat-swamp forest throughout Borneo, Sumatra and Peninsular Malaysia. Larger trees occur in the wetter swamp forests.
Distribución natural
It is confined to peat swamps and infertile sandy soils of Sarawak, Brunei, Sabah, Kalimantan and the Malay Peninsula.
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 less than 6 (rare). Simple perforation plates. Vessel-ray pits similar to intervessel pits in size and shape. Intervesse Occasionally apotracheal axial parenchyma diffuse and/or diffuse in aggregates. Occasionally prismatic crystals in chambered axial parenchyma cells and/or in fibers. 5 to 8 cells per parenchyma strand. Over 9 cells per parenchyma strand. Axial parenchyma band 4 to 10 rays per mm (medium). Rays less than 4 per mm (rare). Rays of two distinct sizes. Ray height more than 1 mm. Occasionally larger rays more than 4 seriate. Occasionally sheath cells. Prismatic crystals in radial alignment in procumbent ray cells (chamber Fibers very thick walled. Fibers with distinctly bordered pits.
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Foto macroscópica de la madera, plano tangencial
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Foto microscópica sección transversal de la madera
Disponibilidad
Status de protección por CITES
Unrestricted
DESCRIPCIÓN GENERAL DE LA MADERA
Color
The sapwood is whitish, merging into reddish-brown heartwood.
Indice de Color (1= Negro, violeta; 7= Amarillo claro, blanco)
4
Grano
The grain is straight or interlocked.
Veta
The wood is typically coarse in texture.
Brillo
Freshly-cut surfaces are glossy.
Durabilidad Natural
It is only moderately durable in the tropics when exposed to the weather.
Indice de Durabilidad Natural (1=Muy alta, 7=Muy baja)
3
Internal growth stresses
This species is reported to have growth stresses.
Dificultad para impregnar
The sapwood is permeable, the heartwood is resistant to preservatives.
PROPIEDADES FÍSICAS DE LA MADERA
Densidad Básica (Peso anhidro/Vol. saturado) (g/cm³)
0.69
Densidad seca al aire (Peso y volúmen CH12%) (g/cm³)
0.77
Contracción Tangencial Total (Saturado hasta anhidro) (%)
12.0
Contracción Radial Total (Saturado hasta anhidro) (%)
7.0
Defectos por secado
Ease of Drying: Seasoning is slow but its properties are rated as good. Drying Defects: There is a risk of warping for thin boards.
Calendario de Secado
UK-G
Estabilidad Dimensional (Contracción Total Tangencial %/Contracción Total Radial %)
1.7
PROPIEDADES QUÍMICAS DE LA MADERA
PROPIEDADES MECÁNICAS DE LA MADERA
Resistencia a flexión (Módulo de ruptura) CH12% (kgf/cm²)
1228
Rigidez (Módulo de elasticidad) CH12% (kgf/cm²)
159219
Resistencia a la compresión paralela a la fibra CH12% (kgf/cm²)
592
Cizallamiento radial CH12% (kgf/cm²)
112
Dureza Janka (lados) CH12% (kgf)
612
Dureza Janka (extremos) CH12% (kgf)
475
TRABAJABILIDAD
Aserrado
The timber has a tendency to spring during sawing.
Maquinado general
The workability of this species is reported to be easy to fair.
Clavado
This species is reported to have a poor nailing behavior.
Facilidad para herramientas manuales
It is reported to have a good to fair response to hand tools.
Usos Reportados
USOS FINALES (RESUMEN)
EXTERIOR GENERAL, poles, stakes posts, crossties, HOUSING GENERAL, flooring, panelling, FURNITURE AND CABINETS, PLYWOOD AND VENEER, SPORTS, TOOLS, agricultural tools, PACKING, NAVAL CONSTRUCTION, boats
EXTERIOR GENERAL
- 1 - Tabela de resultados de ensaios fisicos e mecanicos
Postes de transmisión
- 3 - Estudo dendrologico e determinacao das caracteristicas fisicas e mecanicas do genipapo (Genipa americana)
Postes cerca
- 5 - Propriedades fisicas e mecanicas da madeira e do contraplacado de Pinus elliottii
Durmientes
- 8 - Maderas latinoamericas. III, Podocarpus standleyi ,Podocarpus oleifolius, Drims granadensis, Magnolia poasana y Didymopanax pittieri
VIVIENDA GENERAL
- 10 - Silica in Timbers
Pisos
- 14 - Handbook of Hardwoods
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
IMPLEMENTOS DEPORTIVOS
- 38 - Annual Review and Assessment of the World Timber Situation 1998-ITTO
HERRAMIENTAS
- 42 - Utilización Industrial de Nuevas Especies Forestales en el Perú.
Mangos agrícolas
- 44 - Atlas of Peruvian Woods
PALLETS_EMBALAJES
- 45 - Recopilación y Análisis de Estudios Tecnológicos de Maderas Peruanas
CONSTRUCCIÓN NAVAL
- 55 - Tropical Timber Atlas of Latin America
Botes
- 56 - Manual de Identificación de Especies Forestales de la Subregión Andina.
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