PUTAT (Barringtonia pendula)
Trade Name
Putat
Scientific Name
Barringtonia pendula Kurz
Family
LECYTHIDACEAE
Common Names
Langkong (Sarawak); Putat bukit (Malaysia); Banana putat; Putat gajah (Malaysia)
Scientific Name Synonyms
Barringtonia yunnanensis Hu.; Barringtonia musiformis King
Description Of The Tree
Botanical Description
It is a small to medium tree, rarely exceeding 33 m high, sometimes with thick buttresses or a fluted base.
Natural Habitat
Most Barringtonia species are found in evergreen primary or secondary forests, growing at altitudes up to 600 m.
Wood Identification
Anatomic Description Of Wood
Wood diffuse porous. Vessels per mm2 5 to 20. Vessel-ray pits reticulate and/or foraminate. Simple perforation plates. Vessel-ray pits similar to intervessel pits in size and shape. Intervessel pits large, 10 micras or more. Axial parenchyma in marginal or in seemingly marginal bands. Axial parenchyma confluent. Prismatic crystals in non-chambered axial parenchyma cells. Axial parenchyma bands more than 3 cells wide. 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). Fibers with distinctly bordered pits.
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Wood Macro Photo Tangential Plane
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Wood Micro Photo Of Transversal Section
Availability
Cites Status
Unrestricted
General Wood Description
Color
The heartwood is cream-white, pale yellow-brown, sometimes with reddish tinge, not differentiated from the sapwood.
COLOR INDEX (1=Black, 7=Light yellow,white)
6
Grain
This timber usually has straight or interlocked grain.
Texture
Texture is usually fine.
Natural Durability
It is perishable and vulnerable to decay and insect attack.
Natural durability index (1= Very high durability, 7=Vey low durability)
5
Resistance To Impregnation
The sapwood is easily preserved, but the heartwood presents a moderate penetration.
Wood Physical Properties
Basic Density or Specific Gravity (O.D. weight/vol. green) (g/cm³)
0.59
Air-dry Density (Weight and volume at 12%MC) (g/cm³)
0.65
Total shrinkage Tangential (Saturated to 0%MC) (%)
6.7
Total shrinkage Radial (Saturated to 0%MC) (%)
4.0
Drying Defects
Drying Defects: Care is needed during seasoning, especially with the heavier timber, as backsawn boards tend to check. Kiln Schedules: Kiln drying of heavier grades of eucalyptus timber is only practicable in boards up to 25 mm in thickness. It is strongly recommended to air dry the wood to 30% moisture content prior to kiln drying.
Dimensional stability ratio (Total Tangential Shrinkage %/Total Radial Shrinkage %)
1.7
Wood Chemical Properties
Wood Mechanical Properties
Bending Strength (MOR),12%MC (kgf/cm²)
764
Stiffness (MOE) 12%MC (kgf/cm²)
125846
Compression parallel to fiber 12%MC (kgf/cm²)
397
Compression perpendicular to fiber 12%MC (kgf/cm²)
71
Shear strength radial 12%MC (kgf/cm²)
97
Janka hardness (side) 12%MC (kgf)
399
Workability
Sawing
Sawing of Barringtonia is reported to be rather difficult.
Rotary Veneer Cutting
This species is reported to have good characteristics for lamination.
Sliced Veneer
This species is reported to have good characteristics for lamination.
Machining
To obtain good results very sharp tools are recommended.
Planing
Planing of this species is reported to be easy.
Turning
30
Response To Hand Tools
Response to hand tools is reported to be good.
REFERENCED USES
End Uses Summary
HOUSING GENERAL, beams, boards, flooring, PLYWOOD AND VENEER, TURNING, TOOLS, tool handles, agricultural tools, PACKING, pallets, NAVAL CONSTRUCTION, boats, OTHER AND MUSICAL INSTRUMENTS, handicrafts, particleboard
General Housing
- 10 - Silica in Timbers
Beams
- 11 - Prospect: The wood database
Boards
- 13 - Dry kiln schedules for commercial woods. Temperate and tropical. Section III. Latin American (Mexico, Central, and South America) Woods–Conventional Temperatures
Flooring
- 14 - Handbook of Hardwoods
Panels, Veneers
- 25 - Directory of Timber Trade Malaysia
Turning
- 30 - Embassy of Honduras in Japan
Tools
- 42 - Utilización Industrial de Nuevas Especies Forestales en el Perú.
Tool Handles
- 43 - Maderas de Bolivia (Características y Usos de 55 Maderas Tropicales)
Agricultural Tools
- 44 - Atlas of Peruvian Woods
Packing
- 45 - Recopilación y Análisis de Estudios Tecnológicos de Maderas Peruanas
Pallets
- 48 - The strength properties of timbers
Shipbuilding
- 55 - Tropical Timber Atlas of Latin America
Boats
- 56 - Manual de Identificación de Especies Forestales de la Subregión Andina.
Handcraft
- 66 - Maderas latinoamericanas. VII. Caracteristicas anatomicas. propiedades fisicomecanicas, de secado, y tratabilidad de la madera juvenil de Cordia alliodora (Ruiz & Pav. Oken.)
Particleboard
- 80 - Estudio Integral de la Madera para Construcción
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