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Ditta 5
Indirizzo: via dei platani 4 liguria
Tel.: +39 456 5664 54

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Ditta 4
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Ditta 3
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Ditta 2
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Ditta 1
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Ditta 0
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Adu
Adu (Garcinia kola)

Family: Guttiferae

Common names: Adu, Bita-kola, Bitter cola, Ebongagnagne, Edun, Efiat, Efrie, Etirai, Goro, Kofe, Ntu, Ojie, Okain, Okan, Onie, Orogbo, Sagbe, Sagbei, Sagbi, Sefufudua, Suapea, Swa-meh, Ta-sagbe, Tiampa, Twapea, Tweapea, Twiapia, Ugolu

Distributed in: Angola, Benin, Cameroon, Congo, Gabon, Ghana, Ivory Coast, Liberia, Nigeria, Sierra Leone, Togo, Zaire (Africa)

Common uses: Agricultural implements, Boat building (general), Boxes and crates, Flooring, Furniture, Joinery, Light construction, Railroad ties, Tool handles, Turnery, Vehicle parts

Environment profile: Rare

Tree size: Tree height is 20-30 m

Colors: the heart isRed, Yellow to golden-yellow to orangeand the sapwoodWhite to yellow, Yellow.The grain isStraight, the textureMediumand the lusterSlightly lustrous

Natural durability: Susceptible to marine borer attack, Very durable

LightInduced Color Change: Darker

Drying Defects: Distortion, Moderate end spitting

Ease of Drying: Fairly Easy

Tree Identification: Bole/stem form is straight

Boring: Fairly difficult to very difficult

Carving: Fairly Difficult to Very Difficult

Gluing: Easy to glue

Mortising: Fairly Difficult to Very Difficult

Moulding: Fairly Difficult to Very Difficult

Movement in Service: Fairly Difficult to Very Difficult

Nailing: Fairly Difficult to Very Difficult, Poor to Very Poor

Planing: Fairly Difficult to Very Difficult

Response to hand tools: Fairly Difficult to Difficult to Work

Routing recessing: Fairly Difficult to Very Difficult

Screwing: Fairly Difficult to Very Difficult, Poor to Very Poor Results; Turning: Fairly Difficult to Very Difficult

Polishing: Good; Staining: Fairly Easy to Very Easy;

  • Numerical data Metric
  • Numerical data English
  • Strength properties
  • References
Item Green Dry Metric
Specific Gravity
Density 817 kg/m3
Bending Strength kg/cm2
Crushing Strength kg/cm2
Hardness kg
Impact Strength cm
Shearing Strength kg/cm2
Stiffness 1000 kg/cm2
Tangential Shrinkage %
Radial Shrinkage 5 %
Weight 801 641 kg/m3
Maximum Load cm-kg/cm3
Toughness cm-kg
Static Bending kg/cm2
Item Green Dry English
Density 51 lbs/ft3
Weight 50 40 lbs/ft3
Radial Shrinkage 5 %
Tangential Shrinkage 9 %

Shrinkage, Tangential = large
Shrinkage, Tangential = fairly large
Shrinkage, Radial = large
Shrinkage, Radial = fairly large
Shrinkage, Tangential = moderate
Shrinkage, Radial = moderate
Density (dry weight) = 61-67 lbs/cu. ft
Density (dry weight) = 38-45 lbs/cu. ft.

Bolza, E., Keating, W.G.,1972,African Timbers - the Properties, Uses and Characteristics of 700 Species,C.S.I.R.O. Div. of Building ResearchCooper, G.P., Record, S.J.,1931,The Evergreen Forests of Liberia,Yale School Forestry Bulletin,31,pp1-153Hedin, L.,1930,Etude sur la Foret et les Bois du Cameroun,Haut-Commissaire de la CamerounIrvine, F.R.,1961,Woody Plants of Ghana,O.U.P. LondonKeay, R.W.J., et al,1960,Nigerian Trees Vol.1,Nigeria Federal Department of Forest Research, IbadanKennedy, J.D.,1936,Forest Flora of Southern Nigeria,Government Printer LagosKryn, J.M., Forbes, E.W.,1959,The Woods of Liberia,U.S.A. Department of Agriculture,Forest Products Laboratory, Madison,,Report No. 2159Pieters, A.,1977,Essences Forestieres du Zaire,R.U.G. Gent BelguimSavill, P.S., Fox, J.E.D.,1967,Trees of Sierra LeoneTaylor, C.J.,1960,Synecology and Silviculture in Ghana,University College of Ghana Thomas Nelson and Sons
*Come interpretare i dati (manleva su eventuali imprecisioni)