Akota (Schleichera oleosa)
Family: Sapindaceae
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
Distributed in: Burma, India, Indonesia, Sri Lanka (Oceania and S.E. Asia)
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
Tree size: Trunk diameter is 150-200 cm
Colors: the heart isReddish brown, Yellowand the sapwoodWhite to yellow, Yellow.The grain isStraight, the textureMediumand the lusterMedium
Natural durability: Perishable, Resistant to termites
Kiln Schedules: Dry at a slow speed
Drying Defects: Moderate surface checking, Severe surface checking
Ease of Drying: Moderately Difficult to Difficult
Comments: General finishing qualities are rated as good
Blunting Effect: High to severe
Cutting Resistance: Easy to saw
Resistance to Impregnation: Heartwood is permeable
Response to hand tools: Easy to Work
Turning: Good results
Polishing: Very Good to Excellent;
- Numerical data Metric
- Numerical data English
- Strength properties
- References
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Item |
Green |
Dry |
Metric |
Specific Gravity |
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Density |
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705 |
kg/m3 |
Bending Strength |
804 |
1248 |
kg/cm2 |
Crushing Strength |
485 |
699 |
kg/cm2 |
Hardness |
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kg |
Impact Strength |
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137 |
cm |
Shearing Strength |
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kg/cm2 |
Stiffness |
152 |
175 |
1000 kg/cm2 |
Tangential Shrinkage |
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% |
Radial Shrinkage |
5 |
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% |
Weight |
817 |
689 |
kg/m3 |
Maximum Load |
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cm-kg/cm3 |
Toughness |
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cm-kg |
Static Bending |
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kg/cm2 |
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| | | | Item | Green | Dry | English | 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 | | % | |
Density (dry weight) = 67-75 lbs/cu.ft Modulus of Elasticity (stiffness) = high Max. crushing strength = high Density (dry weight) = 53-60 lbs/cu. ft Toughness-Hammer drop (Impact Strength) = high Shrinkage, Tangential = large Shrinkage, Radial = fairly large Bending strength (MOR) = medium Bending strength (MOR) = high
Bourdillon, T.F.,1908,The Forest Trees of Travancore,Travancore Government PressGamble, J.S.,1902,A Manual of Indian Timbers,Sampson Low, Marston & Co. LondonNazma,1981,A handbook of Kerala Timbers,Kerala Forest Research Institute Research Report, No.9Pearson, R.S., Brown, H.P.,1932,Commercial Timbers of India,Govt. Printer Calcutta,2 volsTewari, M.C., Jain, J.C.,1980,Utilization of Secondary Species,Journal of the National Building Organization 25(2) pp1-6
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