Adding Value to Low-value Eucalyptus Wood by Glulam Production: Evaluation and Prediction of Its Properties by Non- Destructive Tool

Abstract

Eucalyptus-based glued laminated timber (glulam) was produced to determine the feasibility of a non-destructive method (drilling resistance) to predict the properties of structural elements and add value to low-value hardwood species. Glulam was manufactured with both formaldehyde and bio-based adhesives in two assembly schemes. The shear strength of the glue line (fv0), compression perpendicular to grain (Ec90 and fc90), delamination (DL), main and extended glue lines thicknesses were evaluated. Our findings indicated that the assembly schemes did not statistically influence properties and linear regression models adjusted for drilling resistance satisfactorily estimated the Ec90 and fc90.