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BAKAU (Rhizophora apiculata)
Nombre comercial
Bakau
Nombre científico (con autor)
Rhizophora apiculata Blume
Familia
Rhizophoraceae
Nombres Comunes
Uakatan; Sagasa; Red mangrove; Rai; Pyu; Payonapo; Pariccha kandal; Pang ka sai; Pang ka bai lek; Paga-paga; Kong kang; Khamo; Kaya kandal; Kang kang rhi; Kandal; Jangkar; Haura; Buayohon; Bhora; Bankao; Bangkita; Bangkau; Balbaro; Bako; Bakhao; Bakauan-lalaki; Bakauan-babai; Bakauan; Bakau minyak; Bakau; Bakad; Asiatic mangrove
Nombres científicos sinónimos (con autores)
Rhizophora candelaria DC.
DESCRIPCIÓN DEL ÁRBOL
Descripción botánica
It is a medium-sized tree up to 30 m tall, 75 cm in diameter. Rhizophora apiculata is a source of tannins.
Hábitat natural
It is common in marine and tidal swamps, where it forms almost pure, dense communities.
Usos No-maderables
The bark of Rhizophora has a high tannin content.
IDENTIFICACIÓN DE LA MADERA
Descripción anatómica de la madera
Vessels exclusively solitary (over 90%). Tangential diameter of vessel lumina 100 micras or less (very small). Tyloses common. Vessel-ray pits reticulate and/or foraminate. Multiple perforation plates. Paratracheal axial parenchyma scanty and/or vasicentric. Larger rays more than 4 seriate. Prismatic crystals in the ray cells. Body ray cells procumbent with one row of upright and/or square marginal cells (Kribs-III). Septate fibers present. Fibers very thick walled.
Disponibilidad
Status de protección por CITES
Unrestricted
DESCRIPCIÓN GENERAL DE LA MADERA
Olor
It has a characteristic mud smell which gradually fades.
Color
The sapwood is not well demarcated from heartwood, which is purplish-red, dark red-brown to yellowish-red.
Indice de Color (1= Negro, violeta; 7= Amarillo claro, blanco)
4
Grano
The grain is straight, rarely interlocked.
Veta
The texture is fine to very fine.
Brillo
The luster is moderate.
Durabilidad Natural
The timber is very stable, not prone to marine borer, termite or fungal attack.
Indice de Durabilidad Natural (1=Muy alta, 7=Muy baja)
4
Contenido de sílice
Silica Content: It contains 0.1% silica. Silica Value: 0.1
Dificultad para impregnar
The wood is reported to be impermeable to wood preservatives.
PROPIEDADES FÍSICAS DE LA MADERA
Densidad Básica (Peso anhidro/Vol. saturado) (g/cm³)
0.83
Densidad seca al aire (Peso y volúmen CH12%) (g/cm³)
0.96
Contracción Tangencial Total (Saturado hasta anhidro) (%)
11.7
Contracción Radial Total (Saturado hasta anhidro) (%)
3.1
Defectos por secado
Ease of Drying: Drying is fairly easy; some difficulties could occur when drying too fast. Drying Defects: No particular risks of drying defects, subject to normal drying conditions. Kiln Schedules: Schedule proposed as a reference by comparison with well known species taking into account to the general technological behavior of this species.
Estabilidad Dimensional (Contracción Total Tangencial %/Contracción Total Radial %)
3.8
PROPIEDADES QUÍMICAS DE LA MADERA
PROPIEDADES MECÁNICAS DE LA MADERA
Resistencia a la compresión paralela a la fibra CH12% (kgf/cm²)
1065
Cizallamiento radial CH12% (kgf/cm²)
127
Dureza Janka (lados) CH12% (kgf)
1236
Dureza Janka (extremos) CH12% (kgf)
1082
TRABAJABILIDAD
Aserrado
This species saws fairly well although it is hard and heavy.
Maquinado general
It works well with most tools despite it is hard and heavy.
Cepillado
It planes well but occasionally grain pick up may occur.
Clavado
It tends to split in nailing but it has good nail holding properties. Pre-boring is recommended.
Encolado
It is moderately easy to glue.
Acabado
It takes a good polish without filling.
Usos Reportados
USOS FINALES (RESUMEN)
EXTERIOR GENERAL, poles, crossties, HOUSING GENERAL, beams, flooring, TOOLS, tool handles, CONTAINERS, cooperage, truck bodies, truck flooring, NAVAL CONSTRUCTION, boats, port pillar, port storage, OTHER AND MUSICAL INSTRUMENTS, paper
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)
Durmientes
- 8 - Maderas latinoamericas. III, Podocarpus standleyi ,Podocarpus oleifolius, Drims granadensis, Magnolia poasana y Didymopanax pittieri
VIVIENDA GENERAL
- 10 - Silica in Timbers
vigas
- 11 - Prospect: The wood database
Pisos
- 14 - Handbook of Hardwoods
HERRAMIENTAS
- 42 - Utilización Industrial de Nuevas Especies Forestales en el Perú.
Mangos herramientas
- 43 - Maderas de Bolivia (Características y Usos de 55 Maderas Tropicales)
CONTENEDORES
- 50 - Properties of imported tropical woods
Duelas toneles
- 51 - Recopilacion de propiedades mecanicas de maderas creciendo en Chile
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
Botes
- 56 - Manual de Identificación de Especies Forestales de la Subregión Andina.
Puertos_pilares
- 61 - Manual de Diseño para Maderas del Grupo Andino
Puertos_estantería
- 62 - Estudio Tecnológico de Maderas del Perú (Zona Pucallpa) Vol I
Pulpa_papel
- 82 - Compilation of Data on the Mechanical Properties of Foreign woods (Part 2) Central and South America.
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