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4. Summary
The method of melting ice with CFHW embedded in concrete pavement is effective. It is shown that,
with an input power of 400 W/m
2
and -5°C air temperature, the time of melting 6.5mm ice on
concrete pavement is 5.5 hours when the wind speed is 0.4 m/s. Compared with 0.4 m/s wind speed,
the time of melting ice is 4.5 hours longer than that of 4.0 m/s wind speed. The average 3D-IR
temperature of the pavement surface is close to 0°C for both 0.4 m/s and 4.0 m/s wind speeds when
the ice is melted completely. Compared with 0.4 m/s wind speed, the rise of pavement temperature is
more slowly when the wind speed is 4.0 m/s, and the time of the pavement temperature up to 0°C is
longer. The longitudinal temperature difference decreases with the increase of the depth, but the
decreased rate of the longitudinal temperature difference decreases gradually. Compared with 0.4 m/s
wind speed, the lateral temperature difference of pavement is slightly higher than that of 4.0 m/s
wind speed. The effective distance of the carbon fiber line affecting the lateral temperature
uniformity of the pavement is 10 cm. The wind speed is a very important factor affecting melting ice.
Field wind speed must be taken into account in the design of actual melting ice project.
Acknowledgments
This work was financially supported by Science and Technology Project of CAAC (MHRD201225),
Science and Technology Project of CAAC (MHRD20140107) and Science and Technology Project
of CAAC (20150225).
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