问题的提出蜡封法是利用物理学中的浮力原理,利用试件排开水的体积来代替试件的体积。具体的测量方法是:用和试件毛体积完全体积相当的水的质量除以水的比重。以此要得到一个准确的毛体积密度,问题的关键是水的质量必须是和试件毛体积相当的水的质量。当沥青混合料的空隙率很大 The issue of wax seal method is the use of physics in the buoyancy principle, the use of specimens to replace the volume of water to replace the volume of the specimen. The specific measurement method is: with the gross volume of the sample volume of the complete volume of water divided by the proportion of water. In order to get an accurate gross bulk density, the crux of the problem is that the quality of the water must be equal to the mass of water in the sample wool. Asphalt mixture porosity is very large