The Bending Moment Resistance of Corner Joints Reinforced with Glass Fiber Polymer

Abstract

Aim of study: This study aimed to determine the effects of glass fiber reinforced polymer (GFRP) and adhesive type on the diagonal compression and tensile strength in L-type corner joints connected by a wood biscuit.Material and Methods: Medium density fiberboard coated with melamine plate (MDF-Lam), wood biscuit with a size number of 20 as the joining member, GFRP for strengthening purposes, and epoxy adhesive, polyvinyl acetate (PVAc-D4), polyurethane (PU-D4) as adhesives were used. The diagonal compression and tension tests were carried out under static load according to ASTM-D1037 standards.Main results: Results indicated that using GFRP significantly increased the diagonal compression and tensile strength of L-type corner joints connected by a wood biscuit.Highlights: It is recommended to use the combination of GFRP and epoxy adhesive to have better compression and tensile strength in the corner joints made of MDF-Lam.