Advancements in Ground Anchors: Carbon Fibre Reinforced Polymer (CFRP) Strands

Steel tendon ground anchors are an integral construction technique for numerous civil engineering applications ranging from deep excavation support to resistance of structural uplift and overturning of superstructures. Corrosion and human error generally causes failure of steel tendon ground anchors. Several methods of minimising anchor system corrosion have been adopted over time to minimise ingress of corrosive substances. Anchors are still failing due to corrosion. Advancement in the development of corrosion resistant materials has been at the forefront of materials research. Research and development of FRP materials has enabled the progress of providing the industry with a more potentially robust anchor system aimed at eliminating current limitations encountered with steel strand ground anchors. This paper investigates current developments in FRP materials for ground anchor applications as an alternative to conventional steel tendon ground anchors.

• Introduction

• Corrosion limitations to steel tendon ground anchors

• Advancements in corrosion resistant composite materials – FRP

• Research potential for FRP ground anchors

• Conclusion

• Acknowledgements

• References