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Dual Function Behavior of Carbon Fiber-Reinforced Polymer in Simulated Pore Solution

Guangdong Province Key Laboratory of Durability for Marine Civil Engineering, School of Civil Engineering, Shenzhen University, Shenzhen 518060, Guangdong, China
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Materials 2016, 9(2), 103; https://doi.org/10.3390/ma9020103
Received: 11 January 2016 / Accepted: 29 January 2016 / Published: 6 February 2016
The mechanical and electrochemical performance of carbon fiber-reinforced polymer (CFRP) were investigated regarding a novel improvement in the load-carrying capacity and durability of reinforced concrete structures by adopting CFRP as both a structural strengthener and an anode of the impressed current cathodic protection (ICCP) system. The mechanical and anode performance of CFRP were investigated in an aqueous pore solution in which the electrolytes were available to the anode in a cured concrete structure. Accelerated polarization tests were designed with different test durations and various levels of applied currents in accordance with the international standard. The CFRP specimens were mechanically characterized after polarization. The measured feeding voltage and potential during the test period indicates CFRP have stable anode performance in a simulated pore solution. Two failure modes were observed through tensile testing. The tensile properties of the post-polarization CFRP specimens declined with an increased charge density. The CFRP demonstrated success as a structural strengthener and ICCP anode. We propose a mathematic model predicting the tensile strengths of CFRP with varied impressed charge densities. View Full-Text
Keywords: polymer-matrix composites (PMCs); corrosion; electrical properties; mechanical properties; anode polymer-matrix composites (PMCs); corrosion; electrical properties; mechanical properties; anode
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Zhu, J.-H.; Guo, G.; Wei, L.; Zhu, M.; Chen, X. Dual Function Behavior of Carbon Fiber-Reinforced Polymer in Simulated Pore Solution. Materials 2016, 9, 103.

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