It has deduced the mathematical function of the sediment void ratio on the basis of stress and structure analysis, and then the mass and volume conversion of deep bed filtration sediment is given.

通过受力情况和结构特性的分析，推导出了沉积物空隙率的函数表达式，在此基础上，给出沉积物质量与体积的换算关系。

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Porosity is defined as the ratio of the void space in a rock to the bulk volume of that rock multiplied by 100 to express in percent.

孔隙度定义为岩石内的孔隙体积占岩石总体积的百分率。

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How to determine the stability, flow value, how to choose an advisable void volume and what kind of mineral aggregate gradation is adopted are the key problems in Max ratio test.

如何准确测定稳定度和流值、如何选择合理的空隙率以及采用何种矿料级配是沥青混凝土配合比试验的关键问题。

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