75-mm-thick rotary-cut veneers of obeche bleached prior to dyeing and then glued one to another;
In order to assess any influence on the mechanical behavior of the MLW of the orientation of the veneers (with respect to the direction in which the stress occurs), several sawn boards were cut from each block of obeche (blocks W and Z), with a nominal thickness of 25 mm and with different cutting angles; Figure 5 shows the sampling scheme followed and the identification details.
The influence of the various angles and the bleaching process on the performance of the two blocks of obeche was assessed by means of the Student's t-test for statistically significant differences between the means of the data obtained.
The Student's t-test did not reveal significant differences between the two blocks of bleached (W) and unbleached (Z) MLW of obeche.
We applied aniline-dyed black obeche
veneer to the rail fronts and then applied the finish overall.
Wood samples of Obeche (Triplochiton scleroxylon), Makore (Tieghemella heckelii), and Moabi (Baillonella toxisperma) were used for the study.
Each specimen was then ripped in two, and both ends subsequently trimmed to final test specimen dimensions of 21 by 70 by 2000 mm for Makore and Moabi, and 21 by 58 by 2000 mm for Obeche.
For Obeche, however, MOR seemed better correlated with density than static bending MOE.
Finger-joints from three tropical African hardwoods, Obeche (Triplochiton scleroxylon), Makore (Tieghemella heckelii), and Moabi (Baillonella toxisperma), were prepared using three finger profiles, three end pressures, and resorcinol-formaldehyde adhesive, to assess the effect of the study variables on the flexural performance of the joints.
The report further indicated that the cutoffs are available predominantly in the preferred primary species like Apa (Afzelia africana), Odum (Milicia excelsa), and Obeche (Triplochiton scleroxylon).
The smaller specimen width for Obeche was due to insufficient quantity.
for Obeche, such that failure occurred within 3 to 5 minutes of test duration (a compromise between the duration specified by the JIS Z 2l0l  and ASTMD 198 .
A study was undertaken to evaluate the flexural and tensile properties of finger-joints produced from Obeche (Triplochiton scleroxylon), Makore (Tieghemella heckelii), and Moabi (Baillonella toxisperma) using resorcinol formaldehyde (RF), melamine formaldehyde (MF), and isocyanate (ISO) adhesives.
This study used wood samples of Obeche (Triplochiton scleroxylon) with a mean density of 351 kg/[m.
Final bending specimen dimensions of 21 by 70 by 2000 mm for Makore and Moabi, and 21 by 58 by 2000 mm for Obeche were prepared.