Dual function carbon fibre fabric strengthening and impressed current cathodic protection (ICCP) anode for reinforced concrete structures

Lambert, Paul; Chau, N.; Mangat, P. S.; O’Flaherty, Finbar J.; Jones, G. B.

doi:10.1617/s11527-014-0300-0

Cited by 51 publications

(35 citation statements)

References 7 publications

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“…The same thing is going to happen to the next generation composite aircraft (8500 commercial planes service life will end by 2025 [5,7]), with each aircraft representing more than 20 tons of CFRP waste [8]. The construction waste is also a serious concern due to wide application of CFRP for structural strengthening [9]. Besides, the world-wide demand for carbon fibers is growing rapidly.…”

Section: Introductionmentioning

confidence: 99%

Recycling of carbon fibers from carbon fiber reinforced polymer using electrochemical method

Sun

Guo

Memon

et al. 2015

Composites Part A: Applied Science and Manufacturing

135

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Section: Introductionmentioning

confidence: 99%

Recycling of carbon fibers from carbon fiber reinforced polymer using electrochemical method

Sun

Guo

Memon

et al. 2015

Composites Part A: Applied Science and Manufacturing

135

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“…Van Nguyen et al [24] studied the performance of CFRP fabric and rod as impressed current anodes in calcium solution and concrete. In addition, CFRP was employed to pre-corroded reinforced concrete beams for both structural strengthening and ICCP, and the results showed that the ultimate strength of specimens with CFRP for dual functions (structural strengthening and ICCP) decreased slightly in comparison to control specimens only for structural strengthening [25,26]. …”

Section: Introductionmentioning

confidence: 99%

Electrical and Mechanical Performance of Carbon Fiber-Reinforced Polymer Used as the Impressed Current Anode Material

Zhu

Han

et al. 2014

Materials

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An investigation was performed by using carbon fiber-reinforced polymer (CFRP) as the anode material in the impressed current cathodic protection (ICCP) system of steel reinforced concrete structures. The service life and performance of CFRP were investigated in simulated ICCP systems with various configurations. Constant current densities were maintained during the tests. No significant degradation in electrical and mechanical properties was found for CFRP subjected to anodic polarization with the selected applied current densities. The service life of the CFRP-based ICCP system was discussed based on the practical reinforced concrete structure layout.

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“…Refs. ) and is based on achieving the desired degree of corrosion within an acceptable timescale. The steel reinforcement was pre‐corroded to four different degrees of corrosion (0% (control), 1, 2, 5%) which would be typically found in concrete structures before an intervention is applied.…”

Section: Experimental Programmementioning

confidence: 99%

Optimised cathodic protection design for maximum bond performance in reinforced concrete

O'Flaherty

Chau

Lambert

et al. 2018

Materials & Corrosion

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The influence of the long‐term effects of impressed current cathodic protection (ICCP) on the bond strength is investigated. A total of 16 pull‐out specimens were divided into four series and the steel bars pre‐corroded to target degrees of 0% (control), 1, 2 and 5% weight loss. Four levels of ICCP current density ranging from approximately 0 (control) to over 1000 μA/cm2 were applied to each series. These are considerably higher than the levels typically used in practice, which rarely exceed 2 μA/cm2, but were used to replicate long‐term application within a reasonable timescale. Following pull‐out tests, the values of bond load were determined. The analysis accounts for the accelerated ICCP by relating the total charge to the steel reinforcement in coulombs (current x time) to the bond values and migration of chloride ions. The results show that although some loss in bond is evident from the ICCP, an optimised current density can be applied to a real structure without affecting the as‐designed bond strength in the long‐term e.g. ≤0.65 μA/cm2 for an ICCP duration of 70 years. Application of the same current density reduces the chloride concentration from around the steel irrespective of the degree of corrosion.

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Dual function carbon fibre fabric strengthening and impressed current cathodic protection (ICCP) anode for reinforced concrete structures

Cited by 51 publications

References 7 publications

Recycling of carbon fibers from carbon fiber reinforced polymer using electrochemical method

Recycling of carbon fibers from carbon fiber reinforced polymer using electrochemical method

Electrical and Mechanical Performance of Carbon Fiber-Reinforced Polymer Used as the Impressed Current Anode Material

Optimised cathodic protection design for maximum bond performance in reinforced concrete

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