在沥青混合料马歇尔试样的断面和肯塔堡飞散试验残留的沥青混合料中,均发现了一种白色、疏松多孔、低密度、爆米花状或海泡状小颗粒,该小颗粒不黏附于沥青和集料,可视为沥青混合料中的一种中间相。试验结果表明集料、沥青、加热、拌制过程中的机械力、飞散等因素共同导致了中间相的生成,中间相是集料破碎部分和集料附属物质中微细颗粒软团聚的结果。 A white, loose porous, low density, popcorn or sea foam-like small particle was found in both the cross-section of the Marshall sample of bituminous mix and the bituminous mixture remaining from the Kentucky fly-thru test. The small particles did not adhere Asphalt and aggregates, can be considered as a kind of intermediate phase in asphalt mixture. The experimental results show that aggregate, asphalt, heating, mechanical force and spattering in the mixing process lead to the formation of mesophase. The mesophase is the result of the soft agglomeration of the fine particles in the aggregate fraction and aggregate appendages.