New Technology and Experimental Study on Snow-Melting Heated Pavement System in Tunnel Portal

<table class="table-group" id="tab2"><tr><td><table class="table"><tr><td class="thead-hr" colspan="3"><hr/></td></tr><tr class="thead"><td align="left">Name</td><td align="center">Thickness (cm)</td><td align="left">Material</td></tr><tr><td class="thead-hr" colspan="3"><hr/></td></tr><tr><td align="left">Surface layer</td><td align="center">4</td><td align="left">Fine gravel asphalt concrete</td></tr><tr><td align="left">Middle layer</td><td align="center">5</td><td align="left">Medium gravel asphalt concrete</td></tr><tr><td align="left">Base layer</td><td align="center">22</td><td align="left">Cement concrete</td></tr><tr class="table-tr"><td colspan="3"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

Advances in Materials Science and Engineering

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Table 2: New Technology and Experimental Study on Snow-Melting Heated Pavement System in Tunnel Portal 