Abstract:In order to reduce the pavement wear caused by cracks which were made by frost heave or tempera- ture stress, the carbon black had been added to the asphalt roadbed with the as-prepared deicer agent, and the properties of the modified asphalt were evaluated through penetration, softening point, ductility and Marshall tests. The results showed that with the increase of the content of carbon black, the penetration and ductility of the asphalt decreased, and the softening point decreased slightly. When the content of rubber powder and carbon black was 10%, the modified effect of asphalt was the best. When the as-prepared deicer agent and rubber pow- der (carbon black) were added into the asphalt, the asphalt had some antiseptic and anti-freezing properties, and the stability and flow value of the modified asphalt mixture increased with increased wear resistance of the as- phalt pavement.