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GREENHEART (Ocotea rodiei)
Nome comercial
Greenheart
Nome científico (autor)
Ocotea rodiei (R.H. Schomb.) Mez
Família
LAURACEAE
Nomes comuns
Sipiri; Kevatuk; Itaube; Ishpingo Moena (Peru); Groen Hart; Demerara Groenhart; Demerara Greenheart; Beeberoe; Sepeira; White Greenheart; Brown Greenheart; Black Greenheart; Sipiroe; Groenhart; Demerara; Torchwood; Wainop; Viruviru; Tugul; Tugui; Supeira (Brazil); Sipira; Sipeiro; Rora-Ek; Cipira; Cipiri; Bibiroo; Bibiri; Bibira; Bibir; Bebeeru; Bebeeren; Bebeeree; Bibiru; Demerara Green Heart; Green Heart
Nome científico sinônimo (autor
Nectandra rodioei R.H. Schomb.
DESCRIÇÃO DA ÁRVORE
Descrição botânica
It attains heights up to 40 m and 100 cm in diameter, but it is more often 50 to 70 cm in diameter. The boles are straight and cylindrical up to 20 to 30 m long. It presents low buttresses.
Habitat natural
Ocotea rodiei is found in primary tropical rain forests in northern South America, growing on well drained areas.
Distribuição natural
The natural range of the species is includes the Guyanas, Venezuela and Brazil.
Usos não madeiravéis
It is reported to be resistant to acids.
IDENTIFICAÇÃO DA MADEIRA
Descrição anatômica da madeira (macro e micro)
Wood diffuse porous. Vessels solitary and in short radial multiples. Tangential diameter of vessel lumina 200 micras or more (large). Tyloses common. Vessels per mm2 10 to 20 (abundant). Vessel-ray pits coarse throughout the ray cell. Intervessel pits small, 7 Axial parenchyma absent or extremely rare, non visible with magnifying glass (8x). Paratracheal axial parenchyma scanty and/or vasicentric. 3 to 4 cells per parenchyma strand. 4 to 10 rays per mm (medium). Rays 1 to 4 seriate. Body ray cells procumbent with one row of upright and/or square marginal cells (Kribs-III). Fibers with simple to minutely bordered pits.
DISPONIBILIDADE
Situação CITES sobre a proteção
Unrestricted
DESCRIÇÃO GERAL DA MADEIRA
Odor ou Cheiro
When dry it has no characteristic odor or taste.
Cor
The sapwood is not clearly distinct from the heartwood. The color of the heartwood varies from light to dark olive or blackish, sometimes with irregular dark veins.
Indice de cor
4
Grã
The grain is straight to interlocked.
Veios ou desenhos na superfície
The texture is fine and uniform.
Brilho
The surface of the wood is naturally high in luster.
DURABILIDADE NATURAL
It is very resistant to pinhole borers, marine borers, and dry-wood termites attack.
Indice de durabilidade natural
1
Tratamento preservativo
This timber is reported to be impermeable to preservatives.
PROPRIEDADES FÍSICAS DA MADEIRA
Densidade básica (Peso seco/Volume saturado) (g/cm³)
0.82
Densidade seca ao ar 12% (g/cm³)
0.94
Contração Tangencial Total (Saturado até peso seco) (%)
8.6
Contração Radial Total (Saturado até peso seco) (%)
7.8
Defeitos causados pela secagem
Ease of Drying: This species air dries rapidly. Drying Defects: Warping can be severe. Kiln Schedules: To reduce warping it is recommended to place the separation stickers closer together. Chemical protection is recommended to avoid blue stain.
Programa de secagem recomendável
UK-B; US-T2-C2
Estabilidade dimensional (Contração Tangencial Total %/Contração Radial Total %)
1.1
PROPRIEDADES QUÍMICAS DA MADEIRA
PROPRIEDADES MECÂNICAS DA MADEIRA
Resistência a flexão a 12% (Módulo de ruptura) (kgf/cm²)
2176
Flexão Estática a 12% (Módulo de elasticidade) (kgf/cm²)
237731
Resistência a compressão paralela as fibras a 12% (kgf/cm²)
972
Cisalhamento radial a 12% (kgf/cm²)
130
Dureza Janka a 12% (perpendicular) (kgf)
1152
Dureza Janka a 12% (paralela) (kgf)
971
TRABALHABILIDADE
Serrar ou Cortar
Cutting resistance is reported to be generally high.
Desdobro da tora em torno para lâminas
It is unsuitable for plywood because of its density.
Desdobro da tora em faqueadeira para lâminas
It is unsuitable for plywood because of its density.
Desgaste de ferramentas
Blunting effect on cutting edges is rated as moderate to high.
Aspectos do processamento em máquinas
The wood of green heart gives satisfactory results in all machining operations.
Aplainamento
A reduced cutting angle of 20 degrees is recommended for planing because of interlocked grain and high density.
Comportamento na aplicação de pregos
The material is reported to require pre-boring.
Colagem
Gluing properties are reported to be variable. Special care needed in gluing.
Acabamento
The timber is reported to give a lustrous finish.
Steam Bending
It is reported to have moderate steam bending properties but it is not recommended for that application.
USOS FINAIS RELATADOS
USOS FINAIS (RESUMO)
EXTERIOR GENERAL, bridges, stakes posts, crossties, HOUSING GENERAL, boards, flooring, steps, panelling, CONTAINERS, cooperage, NAVAL CONSTRUCTION, port pillar
EXTERIOR
- 1 - Tabela de resultados de ensaios fisicos e mecanicos
Pontes
- 2 - 25 madeiras da amazonia de valor comercial, caracterizacao, macroscopica, usos comuns e indices qualificativos
Postes para cercas
- 5 - Propriedades fisicas e mecanicas da madeira e do contraplacado de Pinus elliottii
Dormentes
- 8 - Maderas latinoamericas. III, Podocarpus standleyi ,Podocarpus oleifolius, Drims granadensis, Magnolia poasana y Didymopanax pittieri
CASAS
- 10 - Silica in Timbers
Tábuas
- 13 - Dry kiln schedules for commercial woods. Temperate and tropical. Section III. Latin American (Mexico, Central, and South America) Woods–Conventional Temperatures
Pisos
- 14 - Handbook of Hardwoods
Degraus de escada
- 17 - Tree Conservation Database
Painéis
- 18 - W3TROPICOS Missouri Botanical Garden
CAIXA GRANDE OU CONTAINER
- 50 - Properties of imported tropical woods
Tanoaria
- 51 - Recopilacion de propiedades mecanicas de maderas creciendo en Chile
CONSTRUÇÃO NAVAL
- 55 - Tropical Timber Atlas of Latin America
Pilar de sustentação para portos
- 61 - Manual de Diseño para Maderas del Grupo Andino
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