Propiedades físico-mecánicas de tableros terciados construidos con especies tropicales de plantaciones para uso estructural.

: Concrete, steel and plastics are the materials used for construction in Costa Rica. Meanwhile, wood from plantation
are being introduced in the market. The present study aims to characterize and measured some physical and mechanical properties
of plywood panels manufactured with veneers of Gmelina arborea, Tectona grandis and Acacia mangium coming from forest
plantations for structural use. It was produced three plywood boards of each species and general characterization of them was
done, and physical and mechanical properties were determined. The results shown that panels manufactured with T. grandis wood
presented physical and mechanical properties higher than G. arborea and A. mangium. In accordance with standards of Voluntary
Products Standart PS 1-95 and PS 1-09 of the United States, structural plywood of G. arborea can be grouped in grade 3, and
plywood manufactured with T. grandis and A. mangium wood in grade 2. All species can be used in the manufacture of structural
elements