湖沥青改性沥青会显著改善沥青混合料的热稳定性,因此近来得到了较多的应用,但是湖沥青内所含灰分会在保管条件下沉淀,从而造成湖沥青改性沥青混合料级配的失调。本文论述了生产中可能造成灰分沉淀的条件,并分别提出了解决的方法,给出了保证灰分均匀性所需要的搅拌时间的计算。 Lake asphalt modified asphalt can significantly improve the thermal stability of asphalt mixture, it has been more recently applied, but the lake asphalt ash content will be deposited in the custody of the conditions, resulting in lake asphalt modified asphalt mixture gradation Disorders. This paper discusses the conditions that may cause ash precipitation in the production, and separately proposes the solution method, gives the calculation of mixing time needed to ensure the uniformity of ash content.