Using carbon materials to create concrete with anti-icing properties
DOI:
https://doi.org/10.18321/cpc540Keywords:
Electrospinning, concrete, fibers, electrical conductivity, polyacrylonitrile.Abstract
The article presents experimental data on optimizing the parameters of the process of electrospinning fibers for their further use in the creation of anti-icing concrete. Nanosized fibers based on polyacrylonitrile (PAN) have been obtained and the process of their thermal stabilization and calcination has been studied. Nanofibers were obtained by electrospinning, their physicochemical properties and surface morphology were studied. The optimal compositions of the barite-concrete mixture with the addition of PAN nanofibers in various ratios were determined, and the values of the electrical resistance of the obtained samples were studied. It has been established that the content of even 0.2 wt.% carbon nanofibers (14.1±0.2 MΩ) leads to a sharp decrease in the resistance of concrete. A further increase in the content of carbon nanofibers in the composition of bariteconcrete mixtures leads to a significant decrease in the resistance of the samples. Thus, when the content of 1 wt.% carbon nanofibers in the bariteconcrete mixture led to resistance values equal to 0.42±0.12 MΩ. In this case, the resistance of the control sample (pure concrete) was 15±0.81 MΩ.
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