Road use and electrothermal performance of graphene-conductive asphalt-recycled pervious concrete under severe cold environment

Wang, Xinjie; Liu, Xiaolin; Wu, Yongkang; Zhu, Pinghua; Liu, Hui; Chen, Chunhong; Wang, F. C.

doi:10.1016/j.conbuildmat.2023.132829

Cited by 7 publications

(2 citation statements)

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“…[11][12][13] On the other hand, it enhances the durability of geopolymer structures by preventing freeze-thaw damage and reducing the risk of structural cracking and deterioration. [14][15][16] The electrothermal performance of electrically conductive geopolymer is influenced by several factors, including the distribution of electrodes, conductive additives, and the parameter of power supply. Recent studies have demonstrated advances in the electrothermal performance of geopolymers.…”

Section: Introductionmentioning

confidence: 99%

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Electrothermal effect of carbon fiber and graphite reinforced metakaolin‐based geopolymer

Zhang,

Lin,

Chen

et al. 2024

Int J Applied Ceramic Tech

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This paper investigates the influence of carbon fiber and graphite on the cyclic electrothermal performance of geopolymers (inorganic polymers). It was observed that carbon fibers, graphite, and the carbon fiber/graphite composite could form a stable conductive network at low voltage (3 V). However, under high voltages (9 and 12 V), the current of the geopolymer exhibited a peak shape in the first cycle, with higher voltages resulting in larger peak values and decreased conductivity in subsequent cycles. While graphite improved electrical and thermal conductivity, it weakened the microstructure, leading to an increase in microcracks and voids, and a reduction in the strength of geopolymers. The cumulative energy during the electrothermal process was calculated. The failure mechanism of the conductive network in the geopolymer during cyclic electrical heating was explained, highlighting the disruptive effect of gel shrinkage due to water loss on conductive networks.

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Section: Introductionmentioning

confidence: 99%

“…On the one hand, it provides controlled and efficient heating by adjusting input voltage and material conductivity 11–13 . On the other hand, it enhances the durability of geopolymer structures by preventing freeze‐thaw damage and reducing the risk of structural cracking and deterioration 14–16 …”

Section: Introductionmentioning

confidence: 99%