Study On Bonding Technology Of Larch Glulam Reinforced By Basalt Fiber Reinforced Polymer With Resorcinol

This paper focuses on the research of bonding technology of Chinese Larch glulam/BFRP with two types of phenol resorcinol formaldehyde(PRF), PRX-352AWE/352BE and D-40.Based on PRX-352AWE/352BE adhesive, Orthogonal Experimental Method is adopted to study the effect of pressing time, sanding treatment and HMR treatment on bond performance of larch glulam/BFRP composite. The results show that three factors selected affected the shear strength significantly. Considering the influencing degree of factors on shear strength, HMR treatment is uppermost, later for sanding treatment, last for pressing time. Considering the influencing degree of factors on delamination rate, pressing time is uppermost, later for sanding treatment, last for HMR treatment.The optimizing program can be set as A3B3C2, pressure for 24 hours, sanding with 60 grids and HMR treating only for BFRP. In the program,dry shear strength could reach requirement of GB50005. The material failure, wet shear strength and delamination rate failed to reach the requirements of standards related.Based on D-40 adhesive, Orthogonal Experimental Method is adopted to study the effect of sanding treatment and HMR treatment on bond performance of larch glulam/BFRP composite. The results show that two factors selected affected the dry shear strength significantly, but non-significantly for wet shear strength. Considering the influencing degree of factors on shear strength, HMR treatment was primary, and sanding treatment was secondary. Considering the influencing degree of factors on delamination rate, the primary and secondary relation between two factors have to definite by further research. The optimizing program can be set as A2B2, sanding with 60 grids and HMR treating only for wood lamination. In the program, dry and wet shear strength could reach requirements of GB50005, but failed to reach requirements of ASTM D905. Dry shear strength could reacch requirement of JAS1152. Material failure in dry shearing could reacch requirement of AC 280. Delamination rate failed to reach the requirements of JAS1152.It indicates that D-40 is superior to PRX-352AWE/352BE in the experimental conditions.