FRP Laminate

Fiber Reinforced Polymer (FRP) is comprised of a polymer material (such as epoxy, vinyl-ester, or polyester) reinforced with a fiber (such as carbon, glass, Kevlar, basalt, etc.); thus the name is Fiber Reinforced Polymer or FRP. The fibers are the main source of strength and stiffness in FRP. The resin serves two primary purposes: a) it distributes the load among all fibers, and b) it protects the fibers from environmental effects such as abrasion, corrosion, etc. FRPs have physical properties that are different when measured along different axes or directions. By orienting the fibers in the desired direction, one can achieve the required strength in each direction. In recent years, the repair of understrengthened or damaged reinforced concrete members by the external bonding of fiber-reinforced polymer (FRP) laminates has received considerable attention.