Physical, Mechanical and Acoustic Characteristics of Anogeissus leiocarpus, Manilkara multinervis and Cylicodiscus gabunen-sis Woods Marketed in Benin in West Africa

Wood is a material used in construction, instrument making, etc. In Benin, for heavy construction and on wetland, species with high technological characteristics are imported. But the performance of these imported compared to local indigenous or exotic remains be verified. Thus, it necessary determine basic properties species. It within this framework that we have, 500mm×20mm×20mm prismatic wood specimens Anogeissus leiocarpus, Manilkara multinervis Cylicodiscus gabunensis, acoustic method BING (Beam Identification by Non-destructive Grading) CIRAD-Forest density ρ, moduli Young's modulus E, shear G internal friction tan𝛿 then evaluated specific stiffness E/ρ. On other 20 mm edge cubic specimens, reference physical density, infradensity, total shrinkage, radial tangential shrinkage anisotropy. appears leiocarpus present better physico-mechanical than those gabunensis. very dense woods most Benin's popular The average elasticity bending two higher 12000 MPa while gabunensis 10713 MPa. compression all have an above 14100 MPa. tested light lower anisotropy studied excellent properties. Its (14 GPa) (12 GPa). good physical-mechanical show they structural timbers also potential making insulation.Keywords: BING; Construction; Infradensity; Modulus elasticity; Shrinkage anisotropy; Timber.