Interfacial bond behavior of FRP fabrics bonded to fiber-reinforced geopolymer mortar

摘要: Abstract This paper presents the experimental investigation of composite-mortar three-point bending beam test setup, used to characterize bond behavior between concrete/mortar and fiber-reinforced polymers (FRPs). With this aim, a series studies have been conducted by considering different FRP fabric types (carbon/glass carbon/aramid), epoxy adhesives (E-1 E-2), notch depths (50 33 mm). In addition, mortar, with fiber contents (0, 0.5, 1 1.5 wt.%) was also investigate effects short fibers on interface behavior. From load–displacement curves in tests, peak load ( P ), ultimate mid-span deflection δ ult interfacial fracture energy G F , int ) bonded interfaces were evaluated. It is concluded from study that setup useful for comparison as true failure observed, but obtained these tests showed sensitivity depth. The incorporation steel into mortar not effective improve strength much action observed (near line) during testing.