Fiber-reinforced polymer (FRP) rockbolts and their potential application in low pH mines: A state-of-the-art literature review

This review paper explores the mechanisms and factors influencing the corrosion of rockbolts, particularly in aggressive underground mining environments characterized by high humidity, fluctuating temperatures, and corrosive chemical agents. The study also highlights the role of chloride ions and sulfide inclusions in initiating and propagating corrosion. Additionally, the review explores the emergence of FRP rockbolts as a viable alternative, offering insights into their non-corrosive properties, lightweight nature, and high tensile strength. The comparative analysis between traditional steel rockbolts and FRP alternatives reinforces the potential for FRP rockbolts to enhance the longevity and safety of mining support structures, while also considering the practical implications of their implementation in the mining industry.