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

Abstract

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.

Comparative Performance Analysis of Small Concrete Beams Reinforced with Steel Bars and Non-Metallic Reinforcements

“…Many of these investigations have focused on the behavior of concrete beams that are reinforced with a single type of fiber reinforcement, comparing their performance against that of conventional steel-reinforced concrete beams [16][17][18][19][20][21][22]. Conversely, other studies [23][24][25][26][27][28][29] have chosen to examine FRP bars in isolation, subjecting them to various conditions to elucidate their intrinsic properties without integration into concrete structures. While these studies offer valuable insights into the material properties of FRPs, there remains a notable gap in understanding how these materials function within the broader context of concrete elements.…”

Study on the anchoring performance and failure mechanism of basalt/glass hybrid fiber reinforced plastic anchors in coupled environment

“…This is the steel bolt does not have. FRP is made of glass, carbon, aramid, basalt, and matrix material by winding, forming, pultrusion, and other forming processes 9,10 . The main advantages of single‐fiber FRP composites are lightweight 11,12 .…”

Bridge Performance Recovery Test after Strengthening with a Prestressed CFRP Laminate

“…The dismantling of such bridges generates a significant amount of construction waste and pollution removal, and the construction of new bridges incurs a high social cost. To repair these damaged bridges and extend their service life, researchers worldwide have studied different strengthening techniques [1][2][3][4].…”