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采用透气法，量测了细颗粒泥沙的比表面积．发现泥沙的实际比表面积远大于其等容球态粒子的比表面积．通过资料分析，建立了粒子的相对比表面积与平均粒径及其轴比之间的函数关系．从而为实际应用提供了方便
Using air permeability method, the specific surface area of fine sediment was measured. It is found that the actual specific surface area of sediment is much larger than the specific surface area of its isotropic spherical particles. Through data analysis, the relationship between the specific surface area of particles and the average particle size and its axial ratio was established. Thus has provided the convenience for the practical application