Literature Review on External Carbon Fiber-Reinforced Polymers (CFRP) Reinforcements for Concrete Bridges
Mohamed Ahmed, Slimane Metiche, and Radhouane Masmoudi
Appears on pages(s):
bridge, carbon fiber-reinforced polymer (CFRP), externally bonded, rehabilitation, service life, shear strain, truckloads tests
The development of rehabilitation strategies for reinforced concrete bridges is a significant concern for civil engineers. Bridges exposed to harsh environmental conditions and subjected to daily fatigue loading are vulnerable to corrosion and accelerated deterioration of their components. Previous studies and field applications have shown that bonding carbon fiber-reinforced polymer (CFRP) to the bridge element surface is an attractive solution for bridge strengthening. This paper aims at reviewing and evaluating the use of externally bonded CFRP for bridge rehabilitation. The article is structured in two main parts. The first part is an experimental and field survey on using CFRP as external reinforcement for concrete bridges. The second part focuses on evaluating the performance of the Original Champlain Bridge (OCB) edge girder strengthened with externally bonded CFRP under live load tests, which were performed by the developers of the bridge. The results of truckload tests on the edge girder of the OCB show that the rehabilitation technique using externally bonded CFRP sheets on the edge girder of the bridge was able to keep the shear strains constant and extend their service life for up to 10 years until deconstruction of the bridge.