S Jacketing technology using fiber reinforced polymer (FRP) composites is being applied for seismic retrofit and rehabilitation of reinforced concrete (RC) columns designed and constructed under older specifications. In this study, the authors develop an electromagnetic (EM) imaging technology for detecting such damage as voids and debonding between the jacket and the column, which may signific...

Three kinds of fiber reinforced plastic (FRP) composites, including modified polyurethane resin (LGD), epoxy resin (E44) and modified unsaturated polyester resin (D33) glass-fiber reinforced plastics, were subjected to a 5000 h multi-factor accelerated aging test according to the power industry standard. To examine aging resistance and thermal stability of transmission towers made by these thre...

Sustainable fiber reinforced polymer (FRP) composites from renewable and biodegradable fibrous materials matrices are of great interest, as they can potentially reduce environmental impacts. However, the overall properties such still far high-performance conventional glass or carbon FRP composites. Therefore, a balance between composite performance biodegradability is required with approaches t...

Composite materials, comprised of fibre-reinforced polymers, offer a high strength-to-weight ratio, making them excellent for the building complex, lightweight structures in several industries, including marine industry. There is an improvement fuel efficiency and cost-effectiveness general component developments as result flexible design characteristics. Fibre-reinforced polymer (FRP) composit...

The development of promising new high-performance materials, such as composite materials made fibers in a polymeric resin (fiber-reinforced polymer, or FRP), has transformed the structural rehabilitation and upgrade industry for buildings infrastructure. Conventional construction techniques (e.g., strengthening with externally bonded steel plates, known beton plaqués, steel/concrete jackets) ha...

Abstract Fiber-reinforced polymer composites are high-performance materials used extensively in aerospace and defense industries. Researchers have added various nanoscale to FRPs for improving their mechanical properties prepare multifunctional composites. Carbon nanotubes (CNTs) with high strength, modulus, large aspect ratio emerged as a frontrunner the nano-reinforcements, there is volume of...

Carbon nanotubes (CNTs) are an economical and multi-functional nanofiller that can further elevate the versatile performance of fiber-reinforced polymer (FRP). The past two decades have seen significant progress in design, fabrication, characterization CNTs modified FRPs (CNT-FRPs). introduction has been proven to enhance key mechanical properties CNT-FRPs endow composite with additional functi...

concrete shear walls are the most prevalent structural systems resisting lateral loads due to earthquakes in high-rise buildings. very large in-plane stiffness of shear walls provides an excellent drift control in the structure. however, structural damages and early code shortcomings threaten the efficiency of existing structural walls against earthquake. recently, fiber reinforced polymer (frp...

Interestin fiber reinforced polymeric (FRP) composites for structural highway applications has generated the need for reliable techniques which may be used to measure all of the elastic constants of these materials. Mechanical techniques may only be used to measure some of the engineering constants of these anisotropic materials due to the geometry of the pultruded members. Further, mechanical ...