 |
| TRADE NAME |
: |
AZOBE (BONGOSSI) |
| SCIENTIFIC NAME |
: |
Lophira alata Banks ex Gaertn. f.
(= Lophira procera A. chev.)
|
| FAMILY |
: |
Ochnaceae |
 |
| REGIONAL DISTRIBUTION |
: |
West Africa - Central Africa
Ivory Coast : AZOBE
Sierra Leone : HENDUI
Ghana : KAKU
Nigeria : EKKI, EBA
Cameroon : BONGOSSI
Gabon : AKOGA
Congo : BONKOLE
Equat. Guinea : AKOGA
W. Germany : BONKOLE, BONGOSSI
Great Britain : EKKI
Pr. = REGUL. Ex. = REGUL.
|
|
| SAPWOOD |
: |
Clearly demarcated - pale pink - 5 cm.
Intermediate zone between sapwood and heartwood sometimes present. |
| HEARTWOOD |
: |
|
- Colour : Dark red to purple-brown - white deposits in the pores
- Grain : Slightly/occasionally interlocked
- Texture : Coarse
- Silver figure : -
|
|
| TECHNOLOGICAL PROPERTIES |
- Green weight (kg/m3) = 1150 - 1250
- Specific gravity at 12% M.C. (kg/m3) MV12 = (very heavy) 1070
- Volumetric swelling for 1% MC variation V% = (large) 0.69
- Total tangential swelling T% = 11.5
- Total radial swelling R% = 7.8
- Crushing strength (N/mm2) C12 = 96
- Static bending strength (N/mm2) F12 = 227
- Modulus of elasticity (N/mm2) E12 = 17400
|
|
| END USE |
- Railways sleepers
- Heavy duty flooring
- Wagon or truck trays
- Harbourworks
- Bridges
- Flooring for cattle shed
|
|
| REMARKS |
- Natural durability : Very durable
(intermediate zone between sapwood and heartwood is variably durable).
- Lyctus susceptibility : No
- Preservative treatment : Resistant
- Other remarks:
- Resistant to acids
- Resistant to marine borers
- Possible brittleheart.
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