水泥稳定级配碎石最大干密度与级配的关系及应用

Relationship between Maximum Dry Density and Gradation of Cement Stabilized Crushed Stone and Application

结合某一级公路实例,对水泥稳定级配碎石基层压实度检测中,通常出现检测结果不能准确反映现场压实的质量问题,分析了原因,提出解决方法。结果表明,通过建立最大干密度与级配关系,对现场混合料的最大干密度进行修正,能获得准确的压实度结果。因此,在水泥稳定级配碎石的压实度检测中,有必要根据现场混合料的级配波动情况,对最大干密度的取值作出相应修正。

For cement stabilized crushed stone base,the compaction degree testing result could not accurately reflect the field compaction quality problem. This paper analyzed this problem and proposed a method based on one highway. It is shown that the maximum dry density on site can be revised upon its relationship with gradation, and then a more accurate compaction degree results would be obtained. Therefore,it is necessary to revise the maximum dry density in the compaction degree test process.