CLT Fabricated with Gmelina arborea and Tectona grandis Wood from Fast-Growth Forest Plantations: Physical and Mechanical Properties

Fabrication and use of Cross Laminated Timber (CLT) using tropical woods is still limited at present. Therefore objective the present study aims to determine possibility CLT panels 3 5 layers, fabricated with Tectona grandis Gmelina arborea wood adhesive isocyanate polymer emulsion system catalyzed polymeric isocyanate. Delamination, water absorption, density, flexure test, compression glue-line shear were evaluated ANSI/APA PRG320-2012 ASTM D198 D4761 standard. The results showed that T. presented higher values less absorption lower delamination, no evident differences between layers. high density resulted in mechanical properties. flatwise edgewise tests 5-layer both species bending stiffness compared those 3-layer panels. Further stress than for As flatwise, species, surpassed panels, but test observed. MOE Fc superior relation test. was greater these most common failures delamination whereas were: shearing, splitting crushing. In observed layers species.