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Blunting Effect
Comments
Common Names
Common Uses
Countries of Distribution
Cutting Resistance
Drying Defects
Ease of Drying
Family Name
Grain
Heartwood Color
Kiln Schedules
Luster
Natural Durability
Numerical Data
Polishing
References
Regions of Distribution
Resistance to Impregnation
Response to Hand Tools
Sapwood Color
Scientific Name
Strength Properties
Synonyms
Texture
Trade Name
Tree Size
Turning
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Synonyms
Schleichera trijuga
Common Names
Akota, Baru, Ceylon oak, Chakota, Chendala, Cong, Gausam, Gosum, Gyo, Kassumar, Kocham, Kohan, Kokum, Komur pusku, Kon, Koon, Kosengi, Kosum, Kuhumb, Kula pulachi, Kurku, Kusomo, Kussam, Kusum, Kusumb, Mai-khaw, Mai-kyang, May, Paua, Peduman, Poovah, Pu, Puska, Pusku, Puuam, Puvan, Puvatti, Puvu, Roatanga, Rusam, Sagade, Sagdi, Shargadi, Thakabti, Zolim-bukiki
Regions of Distribution
Oceania and S.E. Asia
Countries of Distribution
[VIEW MAP]
Burma, India, Indonesia, Sri Lanka
Common Uses
Agricultural implements, Boat building (general), Cabinetmaking, Charcoal, Fuelwood, Furniture, Heavy construction, Light construction, Posts, Pulp/Paper products, Railroad ties, Shade rollers, Tool handles, Vehicle parts, Wheel spokes, Wheels
Heartwood Color
| Brown |
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| Yellow |
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| Orange |
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| Green/grey |
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| Reddish brown |
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Sapwood Color
| Brown |
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| Yellow |
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| White to yellow |
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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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| Interlocked |
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| Straight |
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| Other figure |
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Texture
Luster
Natural Durability
| Moderately durable |
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| Durable |
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| Perishable |
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| Non-durable |
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| Resistant to termites |
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| Durable |
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| Non durable |
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| Moderately durable |
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Kiln Schedules
Drying Defects
| Severe surface checking |
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| Moderate surface checking |
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Ease of Drying
| Moderately Difficult to Difficult |
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| Easy |
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| Difficult |
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Tree Size
| Tree height is 20-30 m |
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| Bole length is 10-20 m |
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| Bole length is 0-10 m |
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| Trunk diameter is 150-200 cm |
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Comments
General finishing qualities are rated as good
Blunting Effect
Cutting Resistance
| Easy to saw |
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| Cutting Resistance with green wood is difficult |
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Resistance to Impregnation
Response to Hand Tools
Turning
| Good results |
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| Easy to turn |
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Polishing
| Very Good to Excellent Results |
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| Fair to Good Results |
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| Good results |
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Strength Properties
| Density (dry weight) = 67-75 lbs/cu.ft |
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| Modulus of Elasticity (stiffness) = high |
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| Max. crushing strength = high |
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| Density (dry weight) = 53-60 lbs/cu. ft |
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| Toughness-Hammer drop (Impact Strength) = high |
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| Shrinkage, Tangential = large |
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| Shrinkage, Radial = fairly large |
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| Bending strength (MOR) = medium |
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| Bending strength (MOR) = high |
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Numerical Data
| Item | Green | Dry | English |
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| Bending Strength | 11442 | 17761 | psi |
| Density | | 44 | lbs/ft3 |
| Impact Strength | | 54 | inches |
| Maximum Crushing Strength | 6899 | 9945 | psi |
| Stiffness | 2167 | 2494 | 1000 psi |
| Weight | 51 | 43 | lbs/ft3 |
| Radial Shrinkage | 5 | | % |
| Tangential Shrinkage | 10 | | % |
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| Item | Green | Dry | Metric |
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| Bending Strength | 804 | 1248 | kg/cm2 |
| Density | | 705 | kg/m3 |
| Impact Strength | | 137 | cm |
| Maximum Crushing Strength | 485 | 699 | kg/cm2 |
| Stiffness | 152 | 175 | 1000 kg/cm2 |
| Weight | 817 | 689 | kg/m3 |
| Radial Shrinkage | 5 | | % |
References
Bourdillon, T.F.,1908,The Forest Trees of Travancore,Travancore Government Press
Gamble, J.S.,1902,A Manual of Indian Timbers,Sampson Low, Marston & Co. London
Nazma,1981,A handbook of Kerala Timbers,Kerala Forest Research Institute Research Report, No.9
Pearson, R.S., Brown, H.P.,1932,Commercial Timbers of India,Govt. Printer Calcutta,2 vols
Tewari, M.C., Jain, J.C.,1980,Utilization of Secondary Species,Journal of the National Building Organization 25(2) pp1-6
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