本文详细介绍了湖沥青改性沥青内的灰分,其颗粒组成,对改性沥青及改性沥青混合料的影响;介绍了灰分的检测方法,对沥青混合料油石比、矿粉掺加数量的影响。并介绍了由于灰分的存在而对湖沥青改性沥青混合料组成设计的影响、组成设计中的处置方法;还介绍了湖沥青改性沥青混合料路面质量检验中抽提试验值与沥青混合料拌和过程中沥青添加量之间的关系。 This paper introduced in detail the ash content in asphalt modified asphalt, its particle composition, the impact on the modified asphalt and modified asphalt mixture; introduced the detection method of ash content, the asphalt mixture asphalt, the amount of slag mixed influences. The influence of ash on the composition design of modified asphalt mixture of asphalt mixture was introduced, and the disposal method in composition design was also introduced. The extraction test value of asphalt mixture modified with asphalt mixture Relationship between the amount of asphalt added during mixing.