Asan (Terminalia tomentosa)
Family: Combretaceae
Common names: Asan, Asna, Cam lien, Chhlik, Indian laurel, Karimardu, Karu maruthu, Koro maruthu, Maddi, Marda, Mareta, Matti, Neang phaek, Rokfa, Sadar, Sain, Taukkyan, Thembavu
Distributed in: Burma, Cambodia, India, Laos (Oceania and S.E. Asia)
Common uses: Agricultural implements, Bearings & bushings, Boat building (general), Cabinetmaking, Charcoal, Flooring, Fuelwood, Furniture, Heavy construction, Joinery, Ladders, Light construction, Mine timbers, Moldings, Paneling, Piling, Plywood, Poles, Posts, Pulp/Paper products, Railroad ties, Roofing, Structural work, Tables, Tool handles, Vehicle parts, Veneer: decorative, Walking sticks, Wheel spokes, Wheels
Tree size: Trunk diameter is 100-150 cm
Colors: the heart isYellow, Yellow to golden-yellow to orangeand the sapwoodWhite to yellow, Yellow.The grain isVariable figure, the textureUniformand the lusterSlightly lustrous
Natural durability: Susceptible to attack from powder post (Lyctid & Bostrychid) beetles, Susceptible to insect attack
Odor: Has an odor
Kiln Schedules: UK=C US=T3C2/T3C1 Fr=3
Kiln Drying Rate: Very slow (>28 days for boards < 32 mm, to >84 days for boards >= 63 mm)
Drying Defects: Slight cupping, Splitting
Ease of Drying: Thick Stock Requires Care
Tree Identification: Bole/stem form is straight
Comments: General finishing qualities are rated as good
Blunting Effect: Little
Boring: Fairly easy to very easy
Carving: Fairly Easy to Very Easy
Cutting Resistance: Easy to saw
Gluing: Fairly Easy to Very Easy
Mortising: Fairly Easy to Very Easy
Moulding: Fairly Easy to Very Easy
Movement in Service: Fairly Easy to Very Easy
Nailing: Pre-Boring Recommended, Very Good to Excellent
Planing: Poor to Very Poor
Resistance to Impregnation: Resistant sapwood
Response to hand tools: Responds Readily
Routing recessing: Fairly Easy to Very Easy
Sanding: Fairly Easy to Very Easy
Veneering qualities: There is slight to moderate drying degrade and the potential for buckles and splits
Screwing: Pre-boring recommended
; Turning: Very Good to Excellent 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 |
|
|
|
Density |
|
849 |
kg/m3 |
Bending Strength |
647 |
993 |
kg/cm2 |
Crushing Strength |
380 |
574 |
kg/cm2 |
Hardness |
|
1111 |
kg |
Impact Strength |
|
119 |
cm |
Shearing Strength |
|
101 |
kg/cm2 |
Stiffness |
103 |
119 |
1000 kg/cm2 |
Tangential Shrinkage |
|
|
% |
Radial Shrinkage |
5 |
|
% |
Weight |
833 |
705 |
kg/m3 |
Maximum Load |
|
|
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 | 9210 | 14132 | psi | Density | | 53 | lbs/ft3 | Hardness | | 2451 | lbs | Impact Strength | | 47 | inches | Maximum Crushing Strength | 5408 | 8171 | psi | Shearing Strength | | 1442 | psi | Stiffness | 1471 | 1702 | 1000 psi | Weight | 52 | 44 | lbs/ft3 | Radial Shrinkage | 5 | | % | Tangential Shrinkage | 8 | | % | |
Density (dry weight) = 53-60 lbs/cu. ft Modulus of Elasticity (stiffness) = medium Bending strength (MOR) = medium Max. crushing strength = medium Max. crushing strength = high Hardness (side grain) = hard Shrinkage, Tangential = moderate Modulus of Elasticity (stiffness) = low Bending strength (MOR) = low Toughness-Hammer drop (Impact Strength) = medium Toughness-Hammer drop (Impact Strength) = high Shrinkage, Radial = moderate Shrinkage, Radial = fairly large Shearing strength (parallel to grain) = low Hardness (side grain) = very hard Density (dry weight) = 46-52 lbs/cu. ft. Shrinkage, Tangential = fairly large Shearing strength (parallel to grain) = very low Modulus of Elasticity (stiffness) = very low Density (dry weight) = 61-67 lbs/cu. ft Shrinkage, Tangential = small Shrinkage, Tangential = large Shrinkage, Radial = large Shearing strength (parallel to grain) = medium Hardness (side grain) = medium Density (dry weight) = 67-75 lbs/cu.ft Bending strength (MOR) = very high
Bhat, R.V.,1970,Pulping of Tropical Hardwoods,Indian Pulp and Paper Technology Association IPPTA,7(3,pp203-214Bourdillon, T.F.,1908,The Forest Trees of Travancore,Travancore Government PressCarrapiett, J.B.,1960,Notes on ornamental timbers of Burma,Burmese Forester,10(1,pp37-53Chinchole, P.R., Salgiya, S.C.,1971,Anatomical and Chemical Characteristics of Indian Hardwoods with Special,Reference to their Suitability for Pulp: Part IV Eucalyptus citriodora,,Terminalia tomentosa, Strychnos niuxvomica,Indian Pulp and Paper 26(1/6) pp7-13Chudnoff, M.,1984,Tropical Timbers of the World,U.S.A. Department of Agriculture, Forest Service, Forest Products,Laboratory, Madison.Clifford, N.,1957,Timber Identification for the Builder and Architect,Leonard Hill (Books) LTD. LondonCox, H.A.,1939,A Handbook of Empire Timbers,Forest Products Research Laboratory, Princes RisboroughGamble, J.S.,1902,A Manual of Indian Timbers,Sampson Low, Marston & Co. LondonHarrar, E.S.,1942,Some Physical Properties of Modern Cabinet Woods 3. Directional and Volume,Shrinkage,Tropical Woods,9(71, pp26-32Howard, A.L.,1948,A Manual of Timbers of the World.,Macmillan & Co. Ltd. London 3rd ed.Limaye, V.D.,1933,The Physical and Mechanical Properties of woods grown in India (Third,Interim Report on Project 1,Indian Forest Records,18(10,pp1-70Pearson, R.S., Brown, H.P.,1932,Commercial Timbers of India,Govt. Printer Calcutta,2 volsRamesh, Rao K., Juneja, K.B.S.,1971,Field Identification of Fifty Important timbers of India,Dehra Dun IndiaRamesh, Rao K., Purkayastha, S.K.,1972,Indian Woods - Their Identification Properties and Uses,Dehra Dun India,Vol. 3Record, S.J., Hess, R.W.,1943,Timbers of the New World,Yale University PressRoonwal, M.L., Et al,1956,Experiments on the effect of kiln-seasoning of planks from three species,of timber (Terminalia belerica, Terminalia tomentosa and Eugenia,jambolana,Indian Forester 82(9) pp455-68Sallenave, P.,1955,Proprietes Phyiques et Mecaniques des Bois Tropicaux de l'Union Francaise,C.T.F.TSekhar, A.C., Rana, R.S.,1957,Physical and mechanical properties of wood tested at the Forest Research,Institute, Dehra Dun,. Report IX,Indian Forest Records (ns) Timber Mechanics 1(10) pp167-70Sekhar, A.C.,1967,Some Indian Timbers Equivalent to Foreign Timbers,Van Vigyan 5(1&2,pp18-24Sharma, S.N.,1962,Experiments on the High Temperature Drying of some Indian Timbers,(Part.2,Forest Research Institute, Dehra Dun Indian Forest Bulletin No.236Sinha, J.N.,1937,A report on laurel wood (Terminalia tomentosa) and its market in England.,Imperial Forest Institute, OxfordTitmuss, F.H.,1965,Commercial Timbers of the World,Technical Press Ltd., London, 3rd edition
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