Effects of CNT modified adhesives and silane chemical pre-treatment on CFRP/steel bond behaviour and durability

Carbon fibre reinforced polymers have shown an ability to provide increased strength and rehabilitation properties steel. However, under extreme environmental conditions adhered CFRP/steel joints undergo detrimental reductions in durability. This paper explores the use of silane chemical barriers adhesive modifications improve bond durability retard damage restrict degradation. nano tube immersion adhesives created increases mechanical however cost, time dispersion difficulties prevented viable industrial applications. The study experimentally tested steel-CFRP double-lap specimens prepared with combinations epoxy pre-treatment. Samples experienced ongoing static service loading while submerged 5% NaCl solutions varying temperatures. After for different durations, samples were fatigue loaded a set number cycles, after which, failure loads determined. Comparing tensile strengths quantified impact that conditioning, retarding on CFRP