Carbon Fiber Post-Strengthening of Concrete Structures
نویسنده
چکیده
Introduction In the 1970s, exterior bonded steel reinforcement was used sporadically to reinforce bridges to attain higher service load capacities. This steel post-strengthening system consisted of steel straps bonded with epoxies to the exterior of concrete beams. An alternative to the steel retrofit is woven carbon fiber reinforced polymer fabric applied in the same manner as steel. Carbon fiber composite laminates, when compared with steel post-strengthening reinforcement, offer superior tensile strength, comparable modulus of elasticity, high corrosion resistance, lower weight, and ease of construction. CFRP shortcomings include high price, low ductility, and few in situ examples of its application.
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