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Akulia
Akulia (Anogeissus leiocarpus)

Family: Combretaceae

Common names: Akulia, Anem, Anogeissus, Anyi, Atara, Ayin, Chewstick, Chleho, Echeche, Hihe, Kakanla, Kakanli, Kane, Kanna, Kodelia, Kojoli, Makire, Ogo, Orin-odan, Sakane, Shiga, Sia, Tcheean, Tsetse

Distributed in: Benin, Cameroon, Ethiopia, Ghana, Guinea Bissau, Guinea, Ivory Coast, Liberia, Nigeria, Senegal, Sierra Leone, Sudan, Togo (Africa)

Common uses: Agricultural implements, Billiard-cue butts, Boat building (general), Charcoal, Decks, Flooring, Fuelwood, Furniture, Handles: general, Heavy construction, Joinery, Light construction, Millwork, Mine timbers, Moldings, Musical instruments, Poles, Posts, Railroad ties, Shade rollers, Sporting Goods, Tool handles, Turnery, Vats

Tree size: Tree height is 30-40 m

Colors: the heart isYellow, Yellow to golden-yellow to orangeand the sapwoodWhite to yellow, Yellow.The grain isWavy, the textureFine

Natural durability: Very durable, Very durable

Kiln Schedules: Kiln Drying Rate (in days) is rapid

Kiln Drying Rate: Rapid (<10 days for boards < 32 mm, to <30 days for boards >= 63 mm)

Drying Defects: Slight twist/warp, Splitting

Ease of Drying: Slowly

Comments: General finishing qualities are rated as good

Blunting Effect: Moderate

Boring: Fairly difficult to very difficult

Cutting Resistance: Moderate to saw

Gluing: Fairly Easy to Very Easy

Nailing: Possible if prebored, Pre-Boring Recommended

Planing: Fairly Difficult to Very Difficult

Resistance to Impregnation: Sapwood is moderately resistant

Response to hand tools: Fairly Difficult to Difficult to Work

Turning: Fairly Easy to Very Easy

Polishing: Very Good to Excellent;

  • Numerical data Metric
  • Numerical data English
  • Strength properties
  • References
Item Green Dry Metric
Specific Gravity
Density 913 kg/m3
Bending Strength 754 1173 kg/cm2
Crushing Strength 415 616 kg/cm2
Hardness 901 kg
Impact Strength 137 cm
Shearing Strength 188 kg/cm2
Stiffness 83 97 1000 kg/cm2
Tangential Shrinkage %
Radial Shrinkage 2 %
Weight 897 769 kg/m3
Maximum Load cm-kg/cm3
Toughness cm-kg
Static Bending kg/cm2
Item Green Dry English
Bending Strength 10732 16695 psi
Density 57 lbs/ft3
Hardness 1987 lbs
Impact Strength 54 inches
Maximum Crushing Strength 5905 8762 psi
Shearing Strength 2686 psi
Stiffness 1188 1383 1000 psi
Weight 56 48 lbs/ft3
Radial Shrinkage 2 %
Tangential Shrinkage 5 %

Shearing strength (parallel to grain) = high
Density (dry weight) = 61-67 lbs/cu. ft
Shrinkage, Tangential = very small
Shrinkage, Radial = very small
Max. crushing strength = high
Density (dry weight) = 53-60 lbs/cu. ft
Bending strength (MOR) = medium
Toughness-Hammer drop (Impact Strength) = high
Shrinkage, Tangential = small
Shrinkage, Radial = small
Shearing strength (parallel to grain) = medium
Modulus of Elasticity (stiffness) = very low
Modulus of Elasticity (stiffness) = low
Max. crushing strength = medium
Hardness (side grain) = medium
Hardness (side grain) = hard
Density (dry weight) = >75 lbs/cu. ft
Density (dry weight) = 67-75 lbs/cu.ft
Density (dry weight) = 46-52 lbs/cu. ft.
Bending strength (MOR) = high

Ashiabor, W.K.,1968,The Properties of Afzelia africana, Anogeissus leiocarpus, Cynometra,anata, Guibourtia ehie, Tectona grandis,Forest Products Research Laboratory, Ghana Tech. Note,No.6Banks, C.H.,1970,The Durability of South African Wood and Wood Base Building Materials,South African Forestry Journal,No.75Bolza, E., Keating, W.G.,1972,African Timbers - the Properties, Uses and Characteristics of 700 Species,C.S.I.R.O. Div. of Building ResearchGhana - Timber Marketing Board,1969,Ghana Hardwoods,Timber Marketing BoardIrvine, F.R.,1961,Woody Plants of Ghana,O.U.P. LondonKinloch, D., Miller, W.A.,1949,Gold Coast Timbers,Govt. Printer Gold CoastNigeria Department of Forest Research,1967,The Properties of Some Savanna Timber Trees,Nigeria Federal Department of Forest Research, Ibadan Report, No.11Takahashi, A.,1978,Compilation of Data on the Mechanical Properties of Foreign Woods (Part,III) Africa,Shimane University, Japan, Research Report on Foreign Wood No. 7Unwin, A.H.,1920,West African Forests and Forestry,T. Fisher Unwin Ltd. London
*Come interpretare i dati (manleva su eventuali imprecisioni)