The structure and principle of the new type of rubber balloon with water volumometer are introduced. The method of compacted density test by new type of rubber with water volumometer is presented.

介绍了新型水囊式容积测定仪的结构和原理，提出了用新型水囊式容积测定仪测试密度的方法。

youdao

Density is one of key indexes for detecting and controlling the quality of compacted soil.

在路基压实质量检测和控制中，压实密度是重要指标之一。

youdao