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Anakwa (Holoptelea grandis)
Family: Ulmaceae Common names: Anakwa, Avep-ele, Aweb, Awob, Ayo, Bala, Butungu, Gomboul, Inajoko, Kekele, M'bosso, Mumuli, Mutaa, Mutawale, Nemba, Nemba-mbolo, Olazo, Orange barked terminalia, Ulazo Distributed in: Congo, India, Ivory Coast, Sudan, Uganda, Zaire (Africa, Oceania and S.E. Asia) Common uses: Boat building (general), Boxes and crates, Cabinetmaking, Flooring, Food containers, Furniture, Heavy construction, Joinery, Light construction, Matches, Millwork, Paneling, Particleboard, Plywood, Pulp/Paper products, Railroad ties, Tool handles, Turnery, Vats, Vehicle parts, Veneer: decorative Tree size: Tree height is 20-30 m
Colors: the heart isYellow, Yellow to golden-yellow to orangeand the sapwoodSame as heartwood, Yellow.The grain isStriped figure, the textureUniformand the lusterSlightly lustrous
Natural durability: Susceptible to Termite (lsoptera) attack, Susceptible to attack from powder post (Lyctid & Bostrychid) beetles Odor: Has an odor
Kiln Schedules: UK= C US=T3C2/T3C1 Fr=3 Kiln Drying Rate: Rapid (<10 days for boards < 32 mm, to <30 days for boards >= 63 mm)
Drying Defects: No surface checking, 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: High to severe
Boring: Fairly difficult to very difficult Carving: Fairly Difficult to Very Difficult Cutting Resistance: Fairly Difficult to Very Difficult to saw Gluing: Easy to glue
Mortising: Finishes well Moulding: Good finishing Movement in Service: Good finishing Nailing: Difficult to nail, Easy to nail Planing: Planes well, to a good finish Resistance to Impregnation: Resistant sapwood Resistance to Splitting: Poor
Response to hand tools: Easy to machine
Routing recessing: Routing is difficult Sanding: Good sanding finish
Turning: Poor results
Polishing: Satisfactory;
Bending strength (MOR) = medium Shrinkage, Radial = moderate Max. crushing strength = high Max. crushing strength = medium Hardness (side grain) = soft Shearing strength (parallel to grain) = medium Modulus of Elasticity (stiffness) = low Bending strength (MOR) = high Toughness-Hammer drop (Impact Strength) = low Shrinkage, Volumetric = moderate Shrinkage, Volumetric = fairly large Shrinkage, Tangential = small Shrinkage, Tangential = moderate Shrinkage, Tangential = large Shrinkage, Tangential = fairly large Shrinkage, Radial = small Modulus of Elasticity (stiffness) = medium Density (dry weight) = 38-45 lbs/cu. ft. Toughness-Hammer drop (Impact Strength) = medium Shrinkage, Radial = large Shrinkage, Radial = fairly large Modulus of Elasticity (stiffness) = very low Hardness (side grain) = medium Density (dry weight) = 53-60 lbs/cu. ft. Density (dry weight) = 46-52 lbs/cu. ft. Density (dry weight) = 31-37 lbs/cu. ft. Bending strength (MOR) = very high Bolza, E., Keating, W.G.,1972,African Timbers - the Properties, Uses and Characteristics of 700 Species,C.S.I.R.O. Div. of Building ResearchChalk, L.,1933,Twenty West African Timber Trees,Forest Trees and Timbers of the British Empire,Part 2Dalziel, J.M.,1937,The Useful Plants of West Tropical Africa,Crown Agents for the ColoniesEggeling, W.J.,1940,Indigenous Trees of Uganda,Govt. Printer Entebbe UgandaErfurth, T., Rusche, H.,1976,The Marketing of Tropical Wood A. Wood Species from African Moist Forests,F.A.O. Forestry DepartmentForest Products Research Laboratory, Nigeria,1967,Holoptelea grandis,Nigeria Fed. Department of Forest Research, Ibadan, Forest Products,Research Laboratory Report No.13Fouarge, J., Gerard, G.,1964,Bois du Mayumbe,I.N.E.A.C. BelguimFouarge, J.,1970,Essais Physiques,Mecaniques et de Durabilite de Bois de la Republique,Democratique du Congo,I.N.E.A.C. Belgium Serie Technique,No.76France - C.T.F.T./C.T.B.,1982,Guide pour le Choix des Essences Deroulables-pour la fabrication du,contreplaque,C.T.F.T./C.T.B. FranceIrvine, F.R.,1961,Woody Plants of Ghana,O.U.P. LondonPieters, A.,1977,Essences Forestieres du Zaire,R.U.G. Gent BelguimSallenave, P.,1971,Proprietes Physiques et Mecaniques des Bois Tropicaux (Deuxieme,Supplement,C.T.F.T.Sharma, S.N., et al,1960,Experiments on the High Temperature Drying of some Indian Timbers,Indian Forest Bulletin (N.S.,No.230Tack, 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. 7Uganda Forest Department,1955,Mumuli (Holoptelea grandis,Uganda Forestry Department Timber Leaflet,No.24 |
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