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Fibers 2016, 4(1), 3; doi:10.3390/fib4010003

Strengthening of Corroded Reinforced SCC-RAP Members with CFRP

1
Civil Engineering Department, Ohio Northern University, Ada Ohio, OH 45810, USA
2
Mechanical Engineering Department, Ohio Northern University, Ada Ohio, OH 45810, USA
*
Author to whom correspondence should be addressed.
Academic Editor: Mahmoud Reda Taha
Received: 28 October 2015 / Accepted: 12 January 2016 / Published: 22 January 2016

Abstract

Corrosion is one of the major problems affecting the durability of reinforced concrete (RC) structures. This paper investigates the effect of rebar corrosion on the performance of reinforced self-consolidating concrete (SCC) members and the effectiveness of repair. A control RC member, which has no corrosion problem, was prepared to compare against corroded and repaired members. A number of reinforced concrete members having up to 50% corrosion level were constructed and tested to study the effect of corrosion on the structural performance of RC members. The beams with corrosion problem were repaired using carbon fiber reinforced polymer (CFRP) sheets and U-wraps. All of the beams constructed, which are either not repaired or repaired, in this study were tested under two static line loads until failure. The effect of corrosion and effectiveness of repairing technique were assessed by evaluating the performance in terms of load carrying capacity, deflection, and ductility. Test results revealed that as the corrosion level increases, the loss in load carrying capacity increases. Repairing using CFRP improved the performance of corroded members. For example, when 50% corrosion level was achieved, the beam lost approximately 57% of its load carrying capacity, but when it was repaired, it recovered about 42% of its load carrying capacity. View Full-Text
Keywords: reinforced concrete; corrosion; repair; strengthening; FRP reinforced concrete; corrosion; repair; strengthening; FRP
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Abdel-Mohti, A.; Shen, H. Strengthening of Corroded Reinforced SCC-RAP Members with CFRP. Fibers 2016, 4, 3.

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