Glass fiber reinforced polymer (GFRP) composites are widely used in infrastructure applications including water structures due to their relatively high durability, high strength to weight ratio, and non-corrosiveness. Here we demonstrate the potential use of carbon nanoparticles dispersed during GFRP composite fabrication to reduce water absorption of GFRP and to enable monitoring of moisture d...

Abstract The numerical study of the hybrid reinforced concrete beam using GFRP bars has been explored in this research. Finite element software ABAQUS had used for investigation. In present research, use as a replacement to steel reinforcing longitudinal reinforcement is attempted. Further, RC by and rebars transverse compared with conventional beam. beams are tested three-point bending simulat...

Fiber reinforced polymer (FRP) bars are being widely used in civil engineering applications to replace steel due their excellent durability. Existing research on the durability of FRP mainly focuses glass fiber (GFRP) and basalt (BFRP) bars. Different conclusions have been drawn differences fibers, resins, volume fractions, solution concentrations, aging temperatures adopted by researchers. Som...

this paper presents an experimental study on seismic repair of damaged square reinforced concrete columns with poor lap splices, 90-degree hooks and widely spaced transverse bars in plastic hinge regions according to aci detailing (pre.1971) and (318-02) using gfrp wraps. three specimens were tested in “as built” condition and retested after they were repaired by glass fiberreinforced plastic s...

This paper present the experimental result of flexural behavior Hybrid Fiber Reinforced Polymer (HFRP) concrete beams reinforced with Glass (GFRP) rebars and steel bars. experiment is conducted aim replacing reinforcement GFRP to reduce risk corrosion in structures. The data presented this study obtained by conducting test on four HFRP various PVA fibre dosage 0%, 0.25% 0.5% one Pure FRP beam. ...

Tetrahydrobiopterin, the cofactor required for hydroxylation of aromatic amino acids regulates its own synthesis in mammals through feedback inhibition of GTP cyclohydrolase I. This mechanism is mediated by a regulatory subunit called GTP cyclohydrolase I feedback regulatory protein (GFRP). The 2.6 A resolution crystal structure of rat GFRP shows that the protein forms a pentamer. This indicate...