细度模数

M.应称为粗度模数，根据通过量计算出来的才是细度模数。线阵CCD测径装置的设计

Design of diameter measuring apparatus with linear array CCD

砂的细度模数与混凝土抗压强度

Fineness modulus of sand and compression strength of concrete

青砂细度模数在1.6～2.4之间波动，级配差。

And for fine sand , its fineness modulus fluctuates between 1.6 and 2.4 and the gradation is harmful .

通过研究发现，需水量比和80μm筛余量、细度模数、细度比之间存在一定相关关系。

It is found through experiments that there , exists some marked correlation between ratio of water requirement vs , 80 μ m sieve residue , fineness modulus and fineness ratio .

它们是：标准稠度、需水量比、比表面积、80μm筛余量、45μm筛余量、细度模数和细度比。

The parameters include normal consistency , ratio of water requirement , specific surface , 80 μ m sieve residue , 45 μ m sieve residue , fineness modulus and fineness ratio .

根据泵送混凝土对细骨料细度模数、颗粒级配的要求，得到了混合砂中机制砂合理掺量理论值区间。

The interval of theoretical value of the rational incorporating proportion of crushed stone fines is calculated , based on the requirements of fineness modulus and grain gradation of fine aggregate in pumping concrete .

研究发现，随着所取特细砂细度模数的增大，砂浆的压折比和各龄期收缩率有所减小，因此我们选用砂的细度模数为1.4。

The study found , with the increase of the modulus of fineness of the sand , the ratio of compression strength and flexural strength ( c / f ), and the shrinkage decrease , so we selected the sand fineness modulus 1.4 .

适当提高矿渣细度、水玻璃模数和碱含量有利于改善碱矿渣混凝土孔结构，增强界面区域的致密度。

Appropriately increasing special surface of slag , modulus of water glass and alkali content module to improve the pore structure of Alkali activated slag cement concrete and enhance the density of interfacial transition zone .