Journal
JOURNAL OF COMPOSITES FOR CONSTRUCTION
Volume 9, Issue 2, Pages 195-201Publisher
ASCE-AMER SOC CIVIL ENGINEERS
DOI: 10.1061/(ASCE)1090-0268(2005)9:2(195)
Keywords
concrete; reinforced; beams; fiber reinforced polymers; steel; corrosion control; cracking; laminates
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This paper presents the results of an experimental study conducted to investigate the effect of carbon fiber-reinforced polymer (CFRP) confinement on the cracking damage induced by impressed current-accelerated corrosion of reinforced concrete beams. The beams were 254 mm deep by 152 mm wide by 3,200 mm long. Two different corrosion configurations, namely uniform and shear-span corrosion, were investigated in eight specimens at three different degrees of corrosion (5, 10, and 15% theoretical mass loss). Uniform corrosion along the whole length of the beams (3,000 mm) and shear-span corrosion (900 mm from each beam end) were considered. The different degrees of corrosion were induced using an accelerated corrosion technique with an impressed current. Based on the results, it was concluded that CFRP laminate confinement reduces corrosion expansion by up to 70% and slows the rate of corrosion through decreasing the corrosion mass loss by up to 35%.
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