Evaluation of the properties and applications of FRP bars and anchors: A review

The performance deterioration of steel anchors caused by steel corrosion is becoming more serious in slope anchorage applications. Therefore, the fiber reinforced plastic (FRP) composites have become a substitute material for traditional anchorage structures due to their advantages of low price, lightweight, high strength, and corrosion resistance. Numerous studies have proven that FRP anchors have better anchoring capacity than traditional steel anchors in practical engineering and are not as susceptible to environmental influences. This review mainly introduced the mechanical properties of FRP, focuses on the current research progress and innovation of FRP anchor in anchorage engineering, then provides a basis for the design of FRP anchor. In this study, the failure characteristics and problem of insufficient bonding strength of the first interface of FRP anchor anchoring slope were discussed, and the improvement was introduced. It will be conducive to the extension and application of FRP composites as structural materials in civil engineering. A detailed introduction is also given to biomaterials, which are mainly derived from nature and which will not only reduce waste disposal problems and environmental pollution but will also replace conventional applications. Finally, there will be an important reference and value for the development of green and sustainable engineering structures.