Heating and de-icing function in conductive concrete and cement paste with the hybrid addition of carbon nanotubes and graphite products

Farcas, Catalina; Galao, Ó.; Navarro, R.; Zornoza, E.; Baeza, F. Javier; Moral, B Del; Pla, R.; Garcés, P.

doi:10.1088/1361-665x/abe032

Cited by 34 publications

(11 citation statements)

References 24 publications

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“…Applying electrical potential to the conductive cement composites generates heating (Gomis et al, 2015). Previous studies used a various range of applied voltage to investigate generated heating, and these studies confirmed that increasing the applied voltage increased the heating performance of samples (Farcas et al, 2021;Galao et al, 2014;Gomis et al, 2015;Lee et al, 2017aLee et al, , 2020. Therefore, based on the findings of our previous study (Armoosh and Oltulu, 2019), the maximum available output voltage (60 V) in the DC power supply was used to investigate the heating performance of cement composites.…”

Section: Heating/cooling Testsmentioning

confidence: 55%

“…For example, ice caused by the snow can damage the concrete structures; therefore, ice-melting technology should be developed to enhance their strength and durability. Recently, many researchers have focused on using self-heating techniques to melt the surface snow on concrete structures (Farcas et al, 2021; Mohammed et al, 2019; Rao et al, 2018; Sassani et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

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The combined effect of carbon fiber and carbon nanotubes on the electrical and self-heating properties of cement composites

Armoosh

Oltulu

Alameri

et al. 2022

Journal of Intelligent Material Systems and Structures

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This work investigates the electrical and heating performance of conductive cement composites by using carbonaceous materials (carbon fibers (CF) and carbon nanotubes (CNT)) as conductive materials. Various volume fractions of carbonaceous materials were used to indicate the electrical heating performance of the cement composites. Experimental results showed that adding the carbonaceous materials in cement composites reduced the electrical resistance by more than 98% than that of the main cement paste. The percolation threshold of all carbonaceous cement composites was found to be between 0.1 and 0.75 vol%. By applying a potential voltage to the cement composites, different heating temperatures were investigated depending on the type of carbonaceous materials and their volume fractions. The conductive cement composites showed high heating performance exceeded 100°C within a record time when the input voltage is 60 V. At the end of the study, an analysis of electric power consumption was carried out to determine the feasibility of using carbonaceous materials as self-heating components in the suggested conductive cement composites.

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Section: Heating/cooling Testsmentioning

confidence: 55%

Section: Introductionmentioning

confidence: 99%

The combined effect of carbon fiber and carbon nanotubes on the electrical and self-heating properties of cement composites

Armoosh

Oltulu

Alameri

et al. 2022

Journal of Intelligent Material Systems and Structures

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“…In previous studies with a different matrix, a mathematical model which predicts that the degree of heating is adjustable with the applied voltage by means of classical physics equations (Fourier, Newton and Joule) was applied to simulate the heating behavior [ 48 , 49 ]. Using the equations of this model, all tests were simulated in order to verify that it could be used in different materials.…”

Section: Resultsmentioning

confidence: 99%

Ice-Prevention and De-Icing Capacity of Epoxy Resin Filled with Hybrid Carbon-Nanostructured Forms: Self-Heating by Joule Effect

et al. 2021

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In this study, CNTs and graphite have been incorporated to provide electrical conductivity and self-heating capacity by Joule effect to an epoxy matrix. Additionally, both types of fillers, with different morphology, surface area and aspect ratio, were simultaneously incorporated (hybrid CNTs and graphite addition) into the same epoxy matrix to evaluate the effect of the self-heating capacity of carbon materials-based resins on de-icing and ice-prevention capacity. The self-heating capacity by Joule effect and the thermal conductivity of the differently filled epoxy resin were evaluated for heating applications at room temperature and at low temperatures for de-icing and ice-prevention applications. The results show that the higher aspect ratio of the CNTs determined the higher electrical conductivity of the epoxy resin compared to that of the epoxy resin filled with graphite, but the 2D morphology of graphite produced the higher thermal conductivity of the filled epoxy resin. The presence of graphite enhanced the thermal stability of the filled epoxy resin, helping avoid its deformation produced by the softening of the epoxy resin (the higher the thermal conductivity, the higher the heat dissipation), but did not contribute to the self-heating by Joule effect. On the other hand, the feasibility of electrically conductive epoxy resins for de-icing and ice-prevention applications by Joule effect was demonstrated.

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“…Materials with good conductivity, such as steel fiber [16,17], carbon fiber [18,19], erosion wire [20], steel shaving [16], graphite powder [13,21], carbon nanotube [22], carbon black [20] and graphene [23] can be used to increase the electrical conductivity of cementitious materials. Fig.…”

Section: Introductionmentioning

confidence: 99%

Effects of single-walled carbon nanotubes and steel fiber on recycled ferrochrome filled electrical conductive mortars

Dehghanpour¹,

Doğan

Subaşı

et al. 2022

Journal of Sustainable Construction Materials and Technologies

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The production of electrically conductive concrete was introduced years ago among construction materials, generally for anti-icing. The present study investigates the electrical, mechanical, dynamic, and microstructural properties of recycled ferrochrome filled cementitious mortars, containing single-walled carbon nanotubes (SWCNTs) and steel fiber. 7, 14, and 28-day non-destructive and 28-day compressive and bending tests of cementitious conductive mortars obtained from five different mixtures were performed. Two-point uniaxial method was used to determine the electrical conductivity properties of the samples. The damping ratio of the samples was obtained by performing dynamic resonance tests. Ultrasound pulse velocity (UPV) and Leeb hardness tests were performed as other non-destructive testing methods. Microstructure analysis at the interfaces of conductive concrete samples were characterized by scanning electron microscopy (SEM), EDS (Energy-Dispersive X-ray Spectroscopy), and X-ray diffraction (XRD). According to the experimental results, all data agreed and confirmed each other. When SWCNT is used in combination with steel fiber, the conductive mortar samples exhibited reasonable conductivity, while their mechanical properties turned out to below.

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Heating and de-icing function in conductive concrete and cement paste with the hybrid addition of carbon nanotubes and graphite products

Cited by 34 publications

References 24 publications

The combined effect of carbon fiber and carbon nanotubes on the electrical and self-heating properties of cement composites

The combined effect of carbon fiber and carbon nanotubes on the electrical and self-heating properties of cement composites

Ice-Prevention and De-Icing Capacity of Epoxy Resin Filled with Hybrid Carbon-Nanostructured Forms: Self-Heating by Joule Effect

Effects of single-walled carbon nanotubes and steel fiber on recycled ferrochrome filled electrical conductive mortars

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