Experimental Research on Preparing Conductive SMA Doped Graphite

Ding, Qingjun; Wu, Xiaofeng; Liu, Xinquan; Hu, Shuguang

doi:10.1061/41005(329)21

Cited by 3 publications

(2 citation statements)

References 2 publications

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“…Conductive asphalt concrete pavement means that conductive phase materials are incorporated into the pavement surface structure. And electro-thermal conversion is achieved in energized conditions to melt snow and ice [5][6][7].…”

Section: Introductionmentioning

confidence: 99%

Preparation of Conductive Asphalt Concrete Based on the Action Mechanism of Conductive Phase Materials

Li,

Zhang,

Zhang

et al. 2024

Coatings

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Carbon fiber powder (CFP) was first applied to conductive asphalt concrete as a conductive phase material, but its action mechanism has not been clarified. In this paper, atomic force microscopy (AFM) and molecular dynamics (MDs) simulation are used to study the carbon fiber powder mechanism of action, guide the preparation of conductive asphalt concrete, and study the electrothermal properties of conductive asphalt concrete. The results show that carbon fiber powder weakens the adhesion property of asphalt mastic, and this weakening further strengthens in the water–temperature coupling, so water stability and conductivity are used as evaluation indicators to determine that the optimal content of carbon fiber powder is 2.0% and that the optimal content of carbon fibers (CFs) is 0.4%. Carbon fiber–carbon fiber powder conductive asphalt concrete with a resistivity of 0.98 Ω·m was finally prepared. In the temperature rise test of the Marshall specimen and rutting slab, its warming effect is obvious, and the heat transformation rate is more than 75%, so it has a very good ability to melt snow and ice.

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Section: Introductionmentioning

confidence: 99%

Preparation of Conductive Asphalt Concrete Based on the Action Mechanism of Conductive Phase Materials

Li,

Zhang,

Zhang

et al. 2024

Coatings

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“…Scientists and engineers have been carrying out different studies for a long time to eliminate the adverse effects caused by traditional methods and prevent surface icing and snow accumulation in the asphalt pavement. Studies in recent years were shown that electrically conductive asphalt pavements would play a key role in preventing such problems (Ding et al, 2012, Pan et al, 2014, Gürgöze, 2017, Gürer and Elmacı, 2019, Sun et al 2019. Conductive asphalt concrete is a technology that emerged to ensure safe driving in winter.…”

Section: Introductionmentioning

confidence: 99%

Investigation the CF Based Conductive Asphalt Mixtures for Anti-icing

Gürer

Gürgöze²

2022

JER is an international, peer-reviewed journal that publishes f

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In recent years, researchers have been working on a new type of pavement called electrically conductive asphalt to be anti-icing. In this study, hot mix asphalt (HMA) stone mastic asphalt (SMA) specimens were prepared by adding carbon fiber (CF) in three different lengths (5-10-15 mm) and five different percent (0.1-0.2-0.3-0.4 and 0.5% by weight). Volume resistivity measurement and temperature changes of the specimens under constant voltage (20 V) were determined for each of the specimens. As a result of the study, it was determined that the CF properties and aggregate gradation difference were quite effective on the electrical conductivity, and the electrical conductivity properties also changed depending on the CF length and percentage in the mixtures. According to the electrical conductivity test results, it was concluded that 5 mm long CF specimens were more suitable for use in electrically conductive asphalt concretes (CAC), one of the lowest volumetric resistivity values in the literature was obtained. In addition, it was concluded that aggregate gradation is also effective on electrical conductivity.

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An investigation of the electrical conductivity of different stone mastic asphalt mixtures

Gürer

Akbulut

Elmaci³

et al. 2023

Proceedings of the Institution of Civil Engineers - Transport

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In the recent years, many researches have been carried out on the prevention of icing with electrically conductive asphalt pavements on highways and airports. Although there have been many studies on electrical conductivity in asphalt mixtures, gradation in conductive stone mastic asphalt mixtures has not been studied in details yet. The main purpose of this study is to, for the first time, investigate the effect of aggregate gradation variation on the electrical resistivity and the temperature change of the electrically conductive stone mastic mixtures. In this study, the samples of the conductive stone mastic asphalt (SMA) mixture were produced in three different aggregate gradations (1A, 2A, and 8S) and used with a 5 mm length and 0.2% by weight Carbon Fiber (CF) as conductive component. The Marshall design was performed on the series (1A, 2A, and 8S). The series were made by volume resistivity, temperature changes under constant electrical voltage. Ultrasound transmission velocity was determined by the two-electrode method, and the results were compared. It was concluded that the change in aggregate gradation has a significant effect on the electrical conductivity properties of conductive SMA. The denser the gradation of the stone mastic asphalt mixture, the better the electrical conductivity will be.

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Experimental Research on Preparing Conductive SMA Doped Graphite

Cited by 3 publications

References 2 publications

Preparation of Conductive Asphalt Concrete Based on the Action Mechanism of Conductive Phase Materials

Preparation of Conductive Asphalt Concrete Based on the Action Mechanism of Conductive Phase Materials

Investigation the CF Based Conductive Asphalt Mixtures for Anti-icing

An investigation of the electrical conductivity of different stone mastic asphalt mixtures

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