Behavior of CFRP Plate in Simulated ICCP System of Concrete Structures

Zhu, Ji-Hua; Zhu, Miaochang; Han, Ningxu; Xing, Feng; Wei, Liu; Bertolini, Luca

doi:10.5703/1288284315424

Cited by 5 publications

(6 citation statements)

References 20 publications

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“…Through a combined SEM-EDS analysis, the treated CFRP was inferred to be structurally intact. However, it should be noted that the carbon fibers could severely degrade if they were immersed in the chloride-contaminated and Ca(OH) 2 solution with a much larger current density [20].…”

Section: Post-treatment Microscopic Examinationmentioning

confidence: 99%

See 1 more Smart Citation

Application of carbon-fiber-reinforced polymer anode in electrochemical chloride extraction of steel-reinforced concrete

Zhu

Wei

Wang

et al. 2016

Construction and Building Materials

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Section: Post-treatment Microscopic Examinationmentioning

confidence: 99%

“…Gadve et al [18,19] presented ICCP tests using a CFRP as the anode. Recently, Zhu et al [20] investigated the behavior of a CFRP anode in a simulated ICCP system. No significant degradation in electrical and mechanical properties was observed for a CFRP subjected to anodic polarization at the selected applied current density.…”

Section: Introductionmentioning

confidence: 99%

Application of carbon-fiber-reinforced polymer anode in electrochemical chloride extraction of steel-reinforced concrete

Zhu

Wei

Wang

et al. 2016

Construction and Building Materials

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“…Commercial CFRP strips were used in this study, since this kind of material maintained good performance as anode in previous studies [ 21 ]. According to the information given by the manufacturer, CFRP strips are made of multi-layer carbon fibers bounded by LAM-125/LAM-226 laminating epoxy (Pro-Set Inc., Bay City, MI, USA).…”

Section: Experimental Programmentioning

confidence: 99%

“…Recently, Zhu et al . [ 21 ] investigated the behavior of CFRP anode in the simulated ICCP system. No significant degradation in electrical and mechanical properties was found of CFRP subjected to anodic polarization at the selected applied current densities, which demonstrated that CFRP could be successfully used to simultaneously carry out the dual functions of impressed current anode and structural strengthening.…”

Section: Introductionmentioning

confidence: 99%

Polarization Induced Deterioration of Reinforced Concrete with CFRP Anode

et al. 2015

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This paper investigates the deterioration of reinforced concrete with carbon fiber reinforced polymer (CFRP) anode after polarization. The steel in the concrete was first subjected to accelerated corrosion to various extents. Then, a polarization test was performed with the external attached CFRP as the anode and the steel reinforcement as the cathode. Carbon fiber reinforced mortar and conductive carbon paste as contact materials were used to adhere the CFRP anode to the concrete. Two current densities of 1244 and 2488 mA/m2, corresponding to the steel reinforcements were applied for 25 days. Electrochemical parameters were monitored during the test period. The deterioration mechanism that occurred at the CFRP/contact material interface was investigated by scanning electron microscopy (SEM) and X-ray diffraction (XRD) techniques. The increase of feeding voltage and the failure of bonding was observed during polarization process, which might have resulted from the deterioration of the interface between the contact material and CFRP. The formation and accumulation of NaCl crystals at the contact material/CFRP interface were inferred to be the main causes of the failure at the interface.

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“…However, besides the electric conductivity, the successful application of ICCP also depends significantly upon the correct operation of the anodes, the cost of the anode material and their service life or rate of consumption due to a number of environmental and operational factors. The feasibility of using CFRP as the anode material in ICCP has been proven by Nguyen et al (2012), Zhu et al (2014aZhu et al ( , 2014b, Lambert et al (2015) and Verma and Goyal (2015). Though CFRP has ageing problem, the previous studies (Zhu et al 2017) found that CFRP would not be damaged if the current density applied in the ICCP system is carefully chosen and the service life of CFRP anode could be up to 40 years.…”

Section: Introductionmentioning

confidence: 99%

Combined Impressed Current Cathodic Protection and FRCM Strengthening for Corrosion-Prone Concrete Structures

Wei

Zhu

et al. 2019

J. Compos. Constr.

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：This study introduces the use of the combined impressed current cathodic protectionstructural strengthening (ICCP-SS) as a technique for repairing reinforced concrete (RC) structures that have been subjected to chloride-induced corrosion. The development of this technique is based on the combination of a carbon fiber mesh (CF-MESH) and a polymer-modified cementitious matrix to produce a carbon fiber reinforced cementitious matrix (C-FRCM). Firstly, the effects of different types and amounts of high molecular weight polymer and short chopped carbon fibers on the flexural and compressive strength, conductivity and shear strength of a matrix with concrete substrate were investigated in order to find the optimum ingredients required for a high-performance cementitious matrix. Secondly, a shaped CF-MESH was bonded onto the surface of a concrete cube using the aforementioned optimized cementitious matrix. The impressed current cathodic protection (ICCP) technique was then applied to the specimens by using different current densities with the CF-MESH as the anode. During the Mei-ni SU 1 , Liangliang WEI 2 , Ji-Hua ZHU 3* , Tamon UEDA 4 , Guan-ping GUO 5 , Feng XING, "Combined Impressed Current Cathodic Protection and FRCM Strengthening for Corrosion-Prone Concrete Structures", Journal of composites for construction, ASCE, 23(4):04019021. protection period, the protection conditions of rebars subjected to ICCP were assessed by analyzing a variety of electrochemical parameters. Thirdly, single shear tests were conducted; the shear strengths and failure modes of the specimens were obtained and compared in order to evaluate the effects of the ICCP on shear stress transfer. The results show that the proposed technique based on the newly proposed C-FRCM composite is able to provide effective cathodic protection as well as shear stress transfer behavior to RC structures subjected to chloride-induced corrosion, leading to an improvement with respect to structural durability.

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Behavior of CFRP Plate in Simulated ICCP System of Concrete Structures

Cited by 5 publications

References 20 publications

Application of carbon-fiber-reinforced polymer anode in electrochemical chloride extraction of steel-reinforced concrete

Application of carbon-fiber-reinforced polymer anode in electrochemical chloride extraction of steel-reinforced concrete

Polarization Induced Deterioration of Reinforced Concrete with CFRP Anode

Combined Impressed Current Cathodic Protection and FRCM Strengthening for Corrosion-Prone Concrete Structures

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