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Comments
Common Names
Common Uses
Countries of Distribution
Cutting Resistance
Drying Defects
Ease of Drying
Family Name
Grain
Heartwood Color
Luster
Movement in Service
Natural Durability
Numerical Data
Planing
References
Regions of Distribution
Resistance to Impregnation
Response to Hand Tools
Sapwood Color
Scientific Name
Strength Properties
Synonyms
Texture
Trade Name
Tree Identification
Tree Size
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Synonyms
Thauinia integrifolia
Common Names
Ajo, Ajo ajo, Guararema, Ibirarema, Palo cebolla, Pau d'alho
Regions of Distribution
Latin America
Countries of Distribution
[VIEW MAP]
Bolivia, Brazil, Peru
Common Uses
Boxes and crates, Mine timbers, Turnery
Heartwood Color
| Red |
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| Brown |
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| Pink |
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| Yellow to golden-yellow to orange |
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Sapwood Color
| Red |
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| White to yellow |
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| Paler than heartwood |
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Grain
| Figure |
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| Even |
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| Interlocked |
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| Straight |
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| Other (figure) |
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| Stripe (figure) |
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| Interlocked |
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| Striped figure |
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| Straight |
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| Other figure |
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Texture
Luster
Natural Durability
| Perishable |
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| Susceptible to insect attack |
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| Non-durable |
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| Non-resistant to powder post beetles |
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| Non-resistant to termites |
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| Resistant to termites |
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| Perishable |
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| Non durable |
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| Heartwood is susceptible to wood staining fungal attack |
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Drying Defects
Ease of Drying
Tree Identification
| Bole/stem form is misshapen |
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| Bole/stem form is fluted |
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Tree Size
| Bole length is 0-10 m |
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| Bole length is 10-20 m |
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Comments
General finishing qualities are rated as poor
Cutting Resistance
| Cutting Resistance with green wood is easy |
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Movement in Service
Planing
| Planes to a poor finish |
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| Easy to plane |
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Resistance to Impregnation
Response to Hand Tools
| Easy to Work |
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| Easy to machine |
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Strength Properties
| Max. crushing strength = medium |
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| Hardness (side grain) = soft |
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| Bending strength (MOR) = low |
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| Shrinkage, Tangential = fairly large |
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| Shrinkage, Radial = fairly large |
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| Density (dry weight) = 38-45 lbs/cu. ft. |
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| Density (dry weight) = 31-37 lbs/cu. ft. |
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Numerical Data
| Item | Green | Dry | English |
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| Bending Strength | 6111 | 9589 | psi |
| Density | | 36 | lbs/ft3 |
| Hardness | | 995 | lbs |
| Maximum Crushing Strength | 3916 | 6397 | psi |
| Weight | 35 | 28 | lbs/ft3 |
| Radial Shrinkage | 5 | | % |
| Tangential Shrinkage | 9 | | % |
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| Item | Green | Dry | Metric |
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| Bending Strength | 429 | 674 | kg/cm2 |
| Density | | 576 | kg/m3 |
| Hardness | | 451 | kg |
| Maximum Crushing Strength | 275 | 449 | kg/cm2 |
| Weight | 560 | 448 | kg/m3 |
| Radial Shrinkage | 5 | | % |
References
Altamirano, S.V.,1992,Maderas de Bolivia (Caracteristicas y usos de 55 maderas tropicals,Camara Nacional Forestal
Peru - P.A.D.T.,1981,Descripcion general y anatomica de 105 Maderas del Grupo Andino,Junta del Acuerdo de Cartagena, P.A.D.T. Report, Junac, Lima, Peru.
Record, S.J., Hess, R.W.,1943,Timbers of the New World,Yale University Press
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