One of the most serious problems of reinforced concrete structures is corrosion of embedded reinforcing steel bars especially in aggressive environments. To control steel corrosion, several approaches have been followed but do not introduce 100% corrosion resistance and guaranteed longterm performance. Glass Fiber Reinforced Polymer (GFRP) bars are considered to be an ideal alternative to overcome corrosion problem in steel bars because of their high corrosion resistance. This paper discusses the main topics related to the use of GFRP bars as reinforcement in structural reinforced concrete applications and presents an overview to the available literature especially in GFRP bond behavior. The main conclusions are: standardizing the manufacturing process of GFRP bars are needed in order to limit the contradictory results of their performances due to the high differences in the products characteristics, and that the available design guidelines have much conservative equations, so they are recommended to be revised to be more practical.
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