Abstract: Concerning the importance and dificulties of the application of density(density index)test of bituminous mixture，combined with a great of comparative tests and statistic analyses，introduce a better way of test for the above mentioned

Key words: compaction, density, test, experience

摘要： 沥青混合料的密度或相对密度的测定方法在工程实际使用中是—个非常重要而又困难的问题。通过大量的对比试：验，运用数理统计方法，分析试验数据，推荐测试沥青混合料密度或相对密度较优的试验方法

关键词: 对比, 密度, 试验, 体会