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Ditta 5
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Akoiyi
Akoiyi (Cordia africana)

Family: Boraginaceae

Common names: Akoiyi, Aliliba, Alilliba, Aluba, Chichikiri, East Africa cordia, Inderab, Khinghobe, Large leaved cordia, Lilibani, Mringaringa, Mtadola, Mugengere, Mugunguret, Mujugangoma, Mukebu, Mukumari, Mukumasi, Muringa, Muringaringa, Musingati, Musizio, Mutumba, Muzugangoma, Omujugangoma, Samotet, Samut

Distributed in: Ethiopia, Guinea, Kenya, Sudan, Tanzania, Uganda, Zimbabwe (Africa)

Common uses: Beehives, Boat building (general), Boat building: decking, Boxes and crates, Cabinetmaking, Carvings, Food containers, Furniture, Joinery, Light construction, Matches, Mathematical instruments, Moldings, Musical instruments, Musical instruments: percussion, Paneling, Particleboard, Plywood corestock, Plywood, Pulp/Paper products, Shingles, Tool handles, Toys, Turnery, Vats, Vehicle parts, Veneer, Veneer: decorative

Tree size: Trunk diameter is 100-150 cm

Colors: the heart isReddish brown, Yellowand the sapwoodWhite to yellow, Yellow.The grain isWavy, the textureMedium to coarseand the lusterMedium

Natural durability: Susceptible to attack from termites (Isoptera), Very durable

Kiln Drying Rate: Naturally dries quickly

Drying Defects: Slight end splitting, Slight twist/warp

Ease of Drying: Reconditioning Treatement

Tree Identification: Bole/stem form is misshapen

Blunting Effect: Little

Boring: Fairly easy to very easy

Cutting Resistance: Moderate to saw

Gluing: Fair to Good Results

Mortising: Fairly Easy to Very Easy

Moulding: Good finishing

Movement in Service: Good finishing

Nailing: Holds nails well, Very Good to Excellent

Planing: Planes well, to a good finish

Resistance to Impregnation: Resistant sapwood

Response to hand tools: Responds Readily

Routing recessing: Fair to Good Results

Veneering qualities: Suitable for slicing, Suitable for slicing

Steam bending: Poor to Very Poor Results

Screwing: Satisfactory results, Very Good to Excellent Results; Turning: Fair to Good Results

Polishing: Surface Preparation; Staining: Surface Preparation; Varnishing: Good;

  • Numerical data Metric
  • Numerical data English
  • Strength properties
  • References
Item Green Dry Metric
Specific Gravity
Density 464 kg/m3
Bending Strength 474 744 kg/cm2
Crushing Strength 250 414 kg/cm2
Hardness 451 kg
Impact Strength cm
Shearing Strength kg/cm2
Stiffness 1000 kg/cm2
Tangential Shrinkage %
Radial Shrinkage 4 %
Weight 448 400 kg/m3
Maximum Load cm-kg/cm3
Toughness cm-kg
Static Bending kg/cm2
Item Green Dry English
Bending Strength 6751 10584 psi
Density 29 lbs/ft3
Hardness 995 lbs
Maximum Crushing Strength 3560 5901 psi
Weight 28 25 lbs/ft3
Radial Shrinkage 4 %
Tangential Shrinkage 7 %

Density (dry weight) = 23-30 lbs/cu. ft. 1
Density (dry weight) = 31-37 lbs/cu. ft.
Max. crushing strength = medium
Hardness (side grain) = soft
Bending strength (MOR) = low
Shrinkage, Tangential = small
Density (dry weight) = 38-45 lbs/cu. ft.
Shrinkage, Tangential = very small
Shrinkage, Tangential = moderate
Shrinkage, Tangential = large
Shrinkage, Tangential = fairly large
Shrinkage, Radial = very small
Shrinkage, Radial = small
Shrinkage, Radial = moderate
Shrinkage, Radial = large
Shrinkage, Radial = fairly large
Max. crushing strength = low
Bending strength (MOR) = medium

Battiscombe, E., Dale, I.R.,1936,Trees and Shrubs of Kenya Colony,Govt. Printer NairobiBolza, E., Keating, W.G.,1972,African Timbers - the Properties, Uses and Characteristics of 700 Species,C.S.I.R.O. Div. of Building ResearchBrehme, K.,1966,Timbers of Ethiopia No.7 East African Cordia (Cordia africana,Ethiopia Forest Research Institute, Haile Sellassie University, Addis,AbabaBryce, J.M.,1967,Commercial Timbers of Tanzania,Tanzanian Forestry Division Util. Sec. MoshiEggeling, W.J.,1940,Indigenous Trees of Uganda,Govt. Printer Entebbe UgandaGoldsmith, B., Carter, D.T.,1981,The Indigenous Timbers of Zimbabwe,Forestry Commission, Zimbabwe Research Bulletin No.9Grant, D.K.S.,1934,Some Local Timbers,Tanzania Forest DepartmentHoward, A.L.,1948,A Manual of Timbers of the World.,Macmillan & Co. Ltd. London 3rd ed.Irvine, F.R.,1961,Woody Plants of Ghana,O.U.P. LondonKeay, R.W.J.,1964,Nigerian Trees Vol.2,Nigeria Federal Department of Forest Research, IbadanKloot, N.H., Bolza, E.,1961,Properties of Timbers Imported into Australia,C.S.I.R.O. Forest Products Division Technological Paper,No.12Murira, K.,1984,Natural Durability Tests of Tanzanian Timbers 1955 - 1982,Tanzania Forestry Research Institute, Timber Utilisation Research Centre,,Moshi.Patterson, D.N.,1963,The strength of Kenya timbers, their derivation and application,Kenya Forestry Department Research Bulletin,No.23Tack, C.H.,1953,Plywood and veneer species,Forest Department, Uganda. Technical Note 5/1953Tack, C.H.,1969,Uganda Timbers,Govt. Printer UgandaTakahashi, A.,1978,Compilation of Data on the Mechanical Properties of Foreign Woods (Part,III) Africa,Shimane University, Japan, Research Report on Foreign Wood No. 7Timber Development Association,1948,Some New Timbers and Their Uses No. 34,Timber Development Association Limited, London [TRADA]White, F.,1962,Forest Flora of Northern Rhodesia,O.U.P. LondonWimbush, S.H.,1950,Catalogue of Kenya Timbers,Govt. Printer Nairobi Kenya
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