Conduction Heat Effect of Conductive Gussasphalt Concrete
WANG Chaohui1, HAN Xiaoxia1, CHEN Jiao1,4, HOU Rongguo2, ZHENG Shaopeng3
1 School of Highway, Chang’an University, Xi’an 710064; 2 Research Institute of Highway Ministry of Transport, Beijing 100088; 3 National Engineering Laboratory for Surface Transportation Weather Impacts Prevention, Broadvision Engineering Consultants, Kunming 650041; 4 Zhongjiao Tongli Construction Co.,Ltd., Xi’an 710075
Abstract: In order to achieve the purpose of deicing or snow melting of conductive gussasphalt concrete steel deck pavement, conductive gussasphalt concrete was prepared, and its test method of conductive heat effect was put forward. The effects of electrode arrangement, carbon fiber spreading amount and conductive phase material on the conduction heat effect of conductive gussasphalt concrete were studied comprehensively. The conduction heat effect of different types of conductive gussasphalt concrete monolayer was evaluated and the curves of conductive gussasphalt concrete temperature with conduction time were fitted. The results showed that the electrode material of conductive gussasphalt concrete should be aluminum electrode, the voltage output mode should be AC, the output size should be 54 V. The best electrode layout of conductive gussasphalt concrete is vertical electrode, the amount of carbon fiber is 170 g/m2, the mixing amount of conductive phase material is 0.8%. In the five kinds of conductive gussasphalt concrete, the vertical insert the copper wire net is the most effective, and layout the carbon fiber tape is the second. The temperature trend of the middle part of the concrete is the same as the surface layer under the same ambient temperature conditions, and the temperature is basically linear. It provides the foundation for the application of conductive gussasphalt concrete.
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2018, Vol. 32 
