沥青混和料最大理论密度确定方法研讨

Research of the computing methods of the theoretical maximum density of bituminous mixtures

笔者通过对沥青混和料最大理论密度不同确定方法的分析,认为真空实测法比较合理,同时还指出计算法采用的集料相对密度应视集料吸收沥青数量而定.笔者还提出一种计算最大理论密度的新方法 有效体积法,并经过试验证明了有效体积法不但可提高实测效率而且精度完全能满足要求.

Through analyzing several different computing methods of the theoretical maximum density of bituminous mixtures,the practical measurement method was regarded as the best logical way.At the same time,which aggregate density should be adopted in the caluculating method was recommended and the fact that the effective volume method,which was put forward by the authors,is not onlg able to improve the efficiency of the practical measurement method in bituminous mixtures,design but also satisfies the Precision demand of the theoretical maximum density of bituminous mixtures,was proved by test.