TAN B，ZHANG W Z，CHEN P, et al. Research on road performance of ceramic-steel slag heat-resistant and wear-resistant asphalt mixtures [J]. Journal of Henan Polytechnic University( Natural Science) ， doi: 10.16186/j.cnki.1673-9787. 2024080016.

doi: 10.16186/j.cnki.1673-9787. 2024110024

Received：2023-12-22

Revised：2024-01-20

Online：2026-07-20

Research on road performance of ceramic-steel slag heat-resistant and wear-resistant asphalt mixtures (Online)

Tan Bo1,2, Zhang Wanzhen 1,2，Chen Ping1,2,Huang Chaowang3,Chen Zuhong3

1. Guangxi Key Laboratory of Green Building Materials and Construction Industrialization, Guilin University of Technology, Guilin 541004, Guangxi, China;2. School of Civil Engineering ,Guilin University of Technology, Guilin 541004, Guangxi, China;3. Cangwu Highway Maintenance Center, Guangxi Zhuang Autonomous Region, Wuzhou 543100, Guangxi, China

Abstract: Objectives For secondary highways with heavy traffic in high-temperature areas, a ceramic-steel slag heat-resistant and wear-resistant asphalt mixture was prepared, and its pavement performance was studied. Methods Ceramic and steel slag with particle sizes ranging from 4.75mm to 9.5mm were used to replace 40% of the equivalent-grade limestone aggregate by volume, with ceramic and steel slag mixing ratios set at 2:2, 1:3, and 3:1, respectively. The water stability and high-temperature stability of the mixture were evaluated through freeze-thaw splitting tests and rutting tests, while its heat resistance and wear resistance were verified through indoor light radiation tests and accelerated wear tests. Results The results show that the addition of ceramic and steel slag increases the asphalt content of the mixture, and the ceramic-steel slag asphalt mixture exhibits varying degrees of improvement in water stability and rutting resistance. The cooling effect of the ceramic-steel slag asphalt mixture is relatively significant, but prolonged high-temperature exposure also increases the surface temperature. When the mixing ratio of ceramic and steel slag is 2:2, the maximum temperature difference at the 4cm surface layer is 5.9°C, indicating the best heat resistance effect. The cooling effect of the ceramic-steel slag asphalt mixture is relatively significant, but prolonged high-temperature exposure also increases the surface temperature. When the mixing ratio of ceramic and steel slag is 2:2, the maximum temperature difference at the 4cm surface layer is 5.9°C, indicating the best heat resistance effect. Steel slag has high strength, a rough and porous surface, and forms a strong bond with asphalt. Its content significantly affects wear resistance, with the wear resistance improving more significantly as the steel slag content increases. When the steel slag content is 30%, the test specimen has the lowest mass loss in the accelerated wear test, at 227.1g, which is a 25.10% improvement over conventional pure limestone asphalt mixtures. Conclusions Based on the different performance changes resulting from varying mixing ratios, it is recommended that the ceramic-steel slag mixing ratio be controlled at approximately 2:2, which optimizes the overall performance of the asphalt mixture and facilitates construction and material preparation.

Key words: ceramic; steel slag; asphalt mixture; heat resistance; wear resistance