In order to investigate the effects of different foaming and mixing conditions on foam asphalt and its mixtures,and to improve the foaming effect of asphalt and optimize its various properties,this paper studied the foaming effect and work performance of 70#base asphalt and SBS modified asphalt by changing foaming conditions and mineral heating temperature,and evaluated and analyzed the road performance of the two foam asphalt mixtures under the best conditions.The results indicated that the optimal foaming conditions for base asphalt were a temperature of 150℃and a water content of 1%,while the optimal foaming conditions for modified asphalt were a temperature of 160℃and a water content of 2%.The optimal mineral heating temperature for both mixtures was 160℃,and both mixtures had good road performance under the optimal conditions.The road performance of the modified foam asphalt mixture was better,providing an experimental basis for the promotion of water-foaming foam warm mixing technology.
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