Research on electromagnetic properties and microwave deicing performance of carbon fiber modified concrete

Lu, Song; Bai, Erlei; Xu, Jinyu; Chen, Jialin

doi:10.1016/j.conbuildmat.2021.122868

Cited by 39 publications

(13 citation statements)

References 24 publications

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“…Microwave ice removal is a method characterized by rapid and selective heating and higher thermal efficiency [ 94 , 95 , 96 , 97 , 98 , 99 , 100 ]. In [ 101 ] the effectiveness of removing ice from the surface of concrete with the addition of modified carbon fibers (carbon fiber modified concrete (CMFC)) is discussed. In this case, there is a change in the electromagnetic properties of concrete due to which the absorption of microwaves by the concrete is improved ( Figure 18 a).…”

Section: Electrothermal Composite Materials For De-icing Applicationsmentioning

confidence: 99%

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A Mini-Review on Recent Developments in Anti-Icing Methods

et al. 2021

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An aggressive impact of the formed ice on the surface of man-made objects can ultimately lead to serious consequences in their work. When icing occurs, the quality and characteristics of equipment, instruments, and building structures deteriorate, which affects the durability of their use. Delays in the adoption of measures against icing endanger the safety of air travel and road traffic. Various methods have been developed to combat de-icing, such as mechanical de-icing, the use of salts, the application of a hydrophobic coating to the surfaces, ultrasonic treatment and electric heating. In this review, we summarize the recent advances in the field of anti-icing and analyze the role of various additives and their operating mechanisms.

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Section: Electrothermal Composite Materials For De-icing Applicationsmentioning

confidence: 99%

“… ( a ) Photographs of ice on the concrete surface before and after absorption of microwaves; ( b ) the heating rate of CMFC of different fibers concentrations compared to pure concrete. Reprinted with permission from [ 101 ]. …”

Section: Figurementioning

confidence: 99%

A Mini-Review on Recent Developments in Anti-Icing Methods

et al. 2021

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“…The benefits of carbon materials such as graphene [15,16], CNFs [17], and и-activated carbon [18,19] towards increasing concrete's electrical conductivity have also been reported. Compared to steel wool and shavings, carbon materials do not require a large loading, and the resulting carbon material-modified concrete does not require high electric current, which reduces the potential risk to pedestrians and vehicles.…”

Section: Introductionmentioning

confidence: 99%

Effectiveness of Bio-Waste-Derived Carbon Doping on De-Icing Performance of an Electrically Resistant Concrete

et al. 2022

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This paper proposes a modified carbon-based concrete filler composition, which can potentially be used as a self-de-icing pavement. Carbon fibers (CNFs), graphene-like porous carbon (GLC), and a CNF/GLC composite were developed to reinforce concrete with the aim to improve its electrical conductivity and mechanical properties. The effect of the CNF and GLC loadings on the electrical conductivity of the filled concrete was evaluated in a climatic chamber at temperatures simulating water-freezing conditions on a concrete road. The results show that even a negligible loading (0.2 wt.%) of concrete with CNF/GLC results in a dramatic decrease in its resistance when compared to the same loadings for CNF and GLC added separately. Depending on the number of fillers, the temperature of the modified concrete samples reached up to +19.8 °C at low voltage (10 V) at −10 °C, demonstrating the perspective of their heat output for anti-icing applications. Additionally, this study shows that adding 2.0 wt.% of the CNF/GLC composite to the concrete improves its compressive strength by 33.93% compared to the unmodified concrete.

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“…Carbon fibers (CF) are lightweight reinforcing fibers with high specific strength and stiffness but also with high energy demand during the production stage. Due to their excellent properties, they are widely used in demanding applications, such as in the aeronautic sector [ 1 , 2 ], the automotive industry [ 3 , 4 ], and construction [ 5 , 6 ], with both thermoset and thermoplastic matrices. Widespread production and use of CF inevitably leads to high amounts of CF composite waste.…”

Section: Introductionmentioning

confidence: 99%

Towards Sustainable Composite Manufacturing with Recycled Carbon Fiber Reinforced Thermoplastic Composites

et al. 2022

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Currently, the vast majority of composite waste is either landfilled or incinerated, causing a massive burden on the environment and resulting in the loss of potentially valuable raw material. Here, conventional pyrolysis and reactive pyrolysis were used to reclaim carbon fibers from aeronautical scrap material, and to evaluate the feasibility of using reclaimed carbon fibers in structural components for the automotive sector. The need for fiber sizing was investigated as well as the behavior of the fiber material in macroscopic impact testing. The fibers were characterized with the single fiber tensile test, scanning electron microscopy, and the microbond test. Critical fiber length was estimated in both polypropylene and polyamide matrices. Tensile strength of the fiber material was better preserved with the reactive pyrolysis compared to the conventional pyrolysis, but in both cases the interfacial shear strength was retained or even improved. The impact testing revealed that the components made of these fibers fulfilled all required deformation limits set for the components with virgin fibers. These results indicate that recycled carbon fibers can be a viable option even in structural components, resulting in lower production costs and greener composites.

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Research on electromagnetic properties and microwave deicing performance of carbon fiber modified concrete

Cited by 39 publications

References 24 publications

A Mini-Review on Recent Developments in Anti-Icing Methods

A Mini-Review on Recent Developments in Anti-Icing Methods

Effectiveness of Bio-Waste-Derived Carbon Doping on De-Icing Performance of an Electrically Resistant Concrete

Towards Sustainable Composite Manufacturing with Recycled Carbon Fiber Reinforced Thermoplastic Composites

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