Search for

Clicking any heading in the main data area (at right) will scroll the page back to this top position. Use the following links to jump to the associated section in the main data. Blunting Effect Boring Carving Certified Source Common Names Common Uses Countries of Distribution Cutting Resistance Distribution Overview Drying Defects Ease of Drying Environmental Profile Family Name Gluing Grain Heartwood Color Kiln Drying Rate Luster Mortising Moulding Movement in Service Nailing Natural Durability Natural Growth Defects Numerical Data Odor Planing Polishing Product Sources References Regions of Distribution Resistance to Impregnation Response to Hand Tools Routing & Recessing Sanding Sapwood Color Scientific Name Screwing Silica Content Staining Texture Toxicity Trade Name Tree Size Turning Veneering Qualities Scientific Name Dacryodes le testui Trade Name Adjouaba Family Name Burseraceae Common Names Adjouaba, Assia, Igaganga, Mouguengueri, Mouvendo, Ossabel, Ozigo, Safoukala Regions of Distribution Africa Countries of Distribution  [VIEW MAP] Gabon Common Uses Balusters, Bedroom suites, Building construction, Building materials, Cabinetmaking, Chairs, Chests, Concealed parts (Furniture), Construction, Core Stock, Decorative plywood, Decorative veneer, Desks, Dining-room furniture, Domestic flooring, Dowell pins, Dowells, Drawer sides, Factory flooring, Figured veneer, Fine furniture, Floor lamps, Flooring, Furniture , Furniture components, Furniture squares or stock, Hatracks, Interior construction, Kitchen cabinets, Light construction, Living-room suites, Moldings, Office furniture, Parquet flooring, Pile-driver cushions, Piling, Plain veneer, Plywood, Pulp/Paper products, Pulpwood, Shipbuilding, Veneer Environmental Profile Questionable Abundant/Secure Status has not been officially assessed Distribution Overview West Africa in the rain forests. Heartwood Color Red Yellow Orange Purple Black Brown Pink Highly variable Gray buff Sapwood Color White Yellow Color not distinct from heartwood Grain Even Closed Interlocked Interlocked Texture Fine Medium Medium to coarse Luster Low Occaisonally lustrous Natural Growth Defects Gum ducts in timber Natural Durability Very durable Durable Resistant to marine borers Susceptible to attack by marine borers and termites Odor Has an odor No specific smell or taste Silica Content Dacryodes timbers usually contain silica in enough quantities to affect some machining properties Silica Content Toxicity Some toxic effects Drying Defects Distortion Checking Splitting Case Hardening Ease of Drying Fairly Easy Slowly Moderately Difficult to Difficult Difficult Kiln Drying Rate Naturally dries slowly Tree Size Tree height is 10-20 m Sapwood width is 0-5 cm Tree height is 20-30 m Tree height is 30-40 m Trunk diameter is 100-150 cm Mature Dacryodes trees usually attain a height of up to 120 feet (37 m). Most trees are not buttressed Product Sources The ITTO reports that the species is a regular source of timber for exportation. Certified Source Certified Source Blunting Effect Moderate Blunting effect on machining is severe Boring Fair to good results Fairly easy to very easy Carving Fair to Good Results Fairly Easy to Very Easy Cutting Resistance Easy to saw Cutting Resistance with dry wood is difficult Gluing Fairly Difficult to Very Difficult Poor to Very Poor Results Good jointing timber Easy to glue Mortising Fair to Good Results Fairly Easy to Very Easy Moulding Fair to Good Results Fairly Easy to Very Easy Movement in Service Excellent Stability - Small Movement Stable Nailing Fair to Good Results Fairly Easy to Very Easy Holds nails well Planing Fairly Easy to Very Easy Fair to Good Results Very Good to Excellent Results Generally easy to use hand tools Easy to use machine tools A reduced cutting angle of 15 degrees is suggested to prevent the material from picking up in planing Resistance to Impregnation Resistant sapwood Resistant heartwood Resistant Response to Hand Tools Easy to Work Responds Readily Fairly Difficult to Difficult to Work Easy to machine Routing & Recessing Fair to Good Results Fairly Easy to Very Easy Sanding Very Good to Excellent Results Fairly Easy to Very Easy Screwing Fairly Easy to Very Easy Fair to Good Results Good screw holding properties Turning Fairly Easy to Very Easy Fair to Good Results Very Good to Excellent Results Veneering Qualities Suitable for slicing Suitable for peeling Polishing Fair to Good Results Fairly Easy to Very Easy Very Good to Excellent Results Good results Staining Very Good to Excellent Results Fair to Good Results Numerical Data Item Green Dry English Bending Strength 16121 psi Density 45 lbs/ft3 Maximum Crushing Strength 8852 psi Stiffness 1774 1000 psi Toughness 270 inch-lbs Specific Gravity 0.56 Radial Shrinkage 6 % Tangential Shrinkage 7 % Volumetric Shrinkage 14 % Item Green Dry Metric Bending Strength 1133 kg/cm2 Density 721 kg/m3 Maximum Crushing Strength 622 kg/cm2 Stiffness 124 1000 kg/cm2 Toughness 311 cm-kg Specific Gravity 0.56 Radial Shrinkage 6 % Tangential Shrinkage 7 % References Bolza, E., Keating, W.G.,1972,African Timbers - the Properties, Uses and Characteristics of 700 Species,C.S.I.R.O. Div. of Building Research Chudnoff, M.,1984,Tropical Timbers of the World,U.S.A. Department of Agriculture, Forest Service, Forest Products,Laboratory, Madison. ITTO. 1986. Tropical Timber Atlas, Volume 1 - Africa. International Tropical Timber Organization (ITTO) and Centre Technique Forestier Tropical (CTFT, 45bis, Avenue de la Belle Gabrielle, Nogent-sur-Marne Cedex, France.