Effect of chopped carbon fiber on interfacial behaviors of ICCP-SS system

Li, Wan-qian; Chun, Pang‐jo; Zhu, Yaoteng; Zhu, Ji-Hua

doi:10.1016/j.conbuildmat.2020.122117

Cited by 13 publications

(4 citation statements)

References 31 publications

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“…Also, portlandite and C-S-H compositions contributed to the surface interaction between cement matrix and CF. The fact that the main crystalline phases are carbon and quartz can be attributed to the workability of the conductive network in the cement matrix [51]. The low peak densities of the C-S-H phases may be associated with the reaction in the cement mixture.…”

Section: Microstructure Analysis Resultsmentioning

confidence: 99%

Characterization of carbon fiber reinforced conductive mortars filled with recycled ferrochrome slag aggregates

Doğan

Dehghanpour²,

Subaşı

et al. 2022

Journal of Sustainable Construction Materials and Technologies

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Recently, it is known that carbon fiber, which is a conductive fiber, is used in different mixture designs and developing electrically conductive cementitious materials. However, the evaluation of ferrochrome as a recycled aggregate in the mixture of these special concretes has still not been investigated. In this study, electrically conductive mortars were produced by using 100% recycled ferrochrome aggregate with a particle size of less than 1 mm as filling material and using carbon fiber (CF) in 4 different ratios, 0%, 0.5%, 0.75% and 1%. 2, 14, 28, 90 and 180 days electrical resistivity properties of the obtained samples were investigated. In addition, 28-day compressive strength, flexural strength, dynamic resonance, ultrasonic pulse velocity (UPV), Leeb hardness, scanning electron microscope (SEM) and X-Ray Diffraction (XRD) tests were performed on all samples. The obtained results were compared with the literature and it was proved that ferrochrome can be used as a reasonable aggregate in conductive mortars.

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Section: Microstructure Analysis Resultsmentioning

confidence: 99%

Characterization of carbon fiber reinforced conductive mortars filled with recycled ferrochrome slag aggregates

Doğan

Dehghanpour²,

Subaşı

et al. 2022

Journal of Sustainable Construction Materials and Technologies

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“…Therefore, a link between ICCP and SS technology has appeared. However, when C‐FRCM is used as the anode of ICCP system, the electrochemical reaction will cause polarization of C‐FRCM, thereby affecting its mechanical behavior and reducing the effectiveness of SS 17 . Feng et al 18,19 conducted experiments on the tensile and flexural behavior of C‐FRCM after the application of ICCP technology, and results showed that carbon fiber mesh under electrification displayed acidification of the interface, which adversely affected the ultimate bearing capacity and ductility of the C‐FRCM material.…”

Section: Introductionmentioning

confidence: 99%

Experiments on shear behavior of reinforced concrete continuous beams strengthened by C‐FRCM

Feng,

Tang,

Wang

et al. 2024

Structural Concrete

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The dual‐function retrofitting system that uses the carbon‐fabric reinforced cementitious matrix (C‐FRCM) as both the anode of impressed current cathodic protection (ICCP) system and the structural strengthening (SS) material, that is, an ICCP‐SS system, is investigated. The experimental program mainly focused on the shear behavior of C‐FRCM strengthened reinforced concrete (RC) continuous beam under the dual‐function retrofitting system. The influence of anode polarization on the shear strengthening of RC continuous beams is analyzed. Shear tests were conducted on a total of 14 corroded RC continuous beams to investigate the influence of key parameters, including anode polarization degree of prefabricated C‐FRCM plate, layer of carbon fiber mesh and side‐wrapping. The failure modes, shear capacities, and load‐deflection curves of the shear‐strengthened RC continuous beams are reported. Based on the test results, the applicability of relevant design codes was evaluated and found to provide rather conservative predictions for the shear capacity of the examined C‐FRCM strengthened RC continuous beams.

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“…Feng et al 22 examined the tensile and bending behavior of prefabricated C-FRCM plate via a digital image correlation (DIC) system. The interfacial adhesion between C-FRCM and concrete in the ICCP-SS system was examined by Li et al 23 via pull-out tests and double shear tests, and the microstructure of the interface was observed via scanning electron microscopy (SEM). The performance of RC beams strengthened with the ICCP-SS system was examined 24,25 and the validity of ICCP-SS was preliminarily explored.…”

Section: Introductionmentioning

confidence: 99%

Flexural and cracking behavior of corroded RC continuous beams strengthened with energized C‐FRCM system

Feng,

Tang,

Liu

et al. 2023

Structural Concrete

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This paper presents an experimental investigation into the flexural and cracking behavior of corroded reinforced concrete continuous beams with 11‐month wet–dry cycles strengthened by anodic polarized carbon‐fabric‐reinforced cementitious matrix (C‐FRCM) plates. The failure modes and flexural bearing capacities were discussed. The influences of the layer of carbon fabric mesh and complete carbon fiber‐reinforced polymer (CFRP) wrapping as end anchorage on the strengthening effectiveness were explored. The complete crack development patterns were captured by a digital image correlation system, and the results showed that the C‐FRCM system can provide satisfactory crack width control, as proved by the reduced crack spacing and the maximum crack width. The flexural capacities of the strengthened beams were effectively enhanced and the debonding failure can be eliminated through complete CFRP wrappings. Moreover, the design recommendations were proposed based on the estimation of the crack development as per related design guidelines.

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Effect of chopped carbon fiber on interfacial behaviors of ICCP-SS system

Cited by 13 publications

References 31 publications

Characterization of carbon fiber reinforced conductive mortars filled with recycled ferrochrome slag aggregates

Characterization of carbon fiber reinforced conductive mortars filled with recycled ferrochrome slag aggregates

Experiments on shear behavior of reinforced concrete continuous beams strengthened by C‐FRCM

Flexural and cracking behavior of corroded RC continuous beams strengthened with energized C‐FRCM system

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