Abstract
In this paper, the method of melting ice with carbon fibre heating wire (CFHW) buried in concrete pavement is presented to avoid the adverse effects of snow-melting chemicals. The melting ice effect, pavement temperature and energy distribution are analysed. It is shown that, with the air temperature of -5°C and 0.4 m/s wind speed, the time of melting 6.5 mm thick ice on pavement is 8.17 hours, 5.5 hours, 4.25 hours and 3.33 hours when the heat flux is 300 W/m2, 400 W/m2, 500 W/m2 and 600 W/m2, respectively. The pavement temperature can be divided into three stages at the depth of 0.5 cm, including temperature rising process, constant temperature process and rapid temperature increase process. The greater the heat flux, the less the time it takes to melt ice, the lower the total energy needed to melt ice. This work is important for choosing how much heat flux to melt ice.
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