TY  - EJOU
AU  - Yang, Zhiyong 
AU  - Hu, Enjie 
AU  - Xi, Lei 
AU  - Chen, Zhi 
AU  - Xiong, Feng 
AU  - Zhan, Chuanhai 

TI  - Preparation and Analysis of Carbon Fiber-Silicon Carbide Thermally Conductive Asphalt Concrete
T2  - Fluid Dynamics \& Materials Processing

PY  - 2024
VL  - 20
IS  - 4
SN  - 1555-2578

AB  - An experimental investigation into the thermal conductivity of CF-SiC two-phase composite asphalt concrete is presented. The main objective of this study was to verify the possibility of using SiC powder instead of mineral powder as the thermal conductive filler to prepare a new type of asphalt concrete and improve the efficiency of electrothermal snow and ice melting systems accordingly. The thermal conductivity of asphalt concrete prepared with different thermally conductive fillers was tested by a transient plane source method, and the related performances were measured. Then the temperature rise rate and surface temperature were studied through field heating tests. Finally, the actual ice melting efficiency of the thermally conductive asphalt concrete was evaluated using an effective electrothermal system. As shown by the experimental results, the composite made of SiC powder and carbon fiber has a high thermal conductivity. When SiC replaces mineral powder, the thermal conductivity of the asphalt mixture increases first and then decreases with the increase of carbon fiber content. In the present study, in particular, the thermal conductivity attained a peak when the carbon fiber content was 0.2% of the aggregate mass.
KW  - Carbon fiber; silicon carbide; thermally conductive asphalt concrete; road performance; electrothermal snow melting

DO  - 10.32604/fdmp.2023.044030