FRP systems which are a novel method in strengthening, rehabilitation and retrofitting of structures, are concerned here.

FRP materials is the abbreviation for the phrase Fiber Reinforced Plastics or polymers. FRP is  a composite material made of a polymer matrix reinforced with fibers. FRP consists of two components (FRP resin) and (FRP fiber) and has different applications in different industries and buildings. The most advanced application of these materials in retrofitting structures is to repair, strengthen and retrofit concrete structures and in the composite industry to manufacture various industrial components. FRP fibers can increase the strength of concrete by placing and installing on concrete surfaces such as slabs, beams, columns, concrete walls and concrete foundation. this fiber can be applicable In buildings with different application (Commercial , Educational , Government , Residential), heavy machinery and equipment support, marine structure ( Dams and Canals). In addition, FRP wrapping can be used to refine engineering infrastructure such as road-railway bridges, water and chemical tank, chimneys, cooling towers and silos.