Abstract
This paper investigates the long-term durability and performance of Carbon Fiber Reinforced Polymer (CFRP) strengthening systems when applied to concrete structures subjected to corrosive environments. Concrete deterioration due to rebar corrosion is a significant global issue, necessitating effective repair and strengthening solutions. CFRP materials offer high strength-to-weight ratios and excellent corrosion resistance, making them promising candidates for rehabilitation. This study reviews existing literature on the durability of CFRP in various environmental conditions, focusing on factors that influence bond strength, material degradation, and overall structural integrity over time. Experimental data and case studies are analyzed to evaluate the effectiveness of different CFRP application techniques, including near-surface mounted (NSM) and externally bonded (EB) methods, in mitigating the effects of corrosion. The review highlights the importance of proper surface preparation, impregnation, and anchoring for long-term performance. While CFRP generally exhibits superior durability compared to traditional materials, environmental factors such as moisture, freeze-thaw cycles, and chemical attack can impact its efficacy. Furthermore, the compatibility of CFRP with concrete substrates and the potential for interfacial debonding under sustained load and environmental stress are critical considerations. The findings underscore the need for robust design guidelines and quality control measures to ensure the longevity of CFRP-strengthened structures in aggressive conditions. This research provides a comprehensive overview to inform engineers and researchers on the durability aspects of CFRP strengthening systems for corroding concrete infrastructure.