The impact of particle size distribution on flocculation and its growth in cement-ground limestone suspensions was investigated by observing the flocculation states with a microscopic image analyzer and calculating the microscopic interparticle forces based on the multifractal methods and extended DLVO theory. The results showed that the particle size distribution exhibits a clear fractal feature and the flocculation and its growth have multifractal characteristics in cement-ground limestone suspensions. The spectral width, spectral difference and minimum fractal dimension of multifractal spectrum are used to depict the spatial arrangement, size distribution and average state of flocs, respectively. The multifractal spectrum of flocculation growth can be used to describe the growth of flocs. Compare with it, the multifractal spectrum of flocculation formation process has the advantages of integrity and simplification. When the fractal dimension of particle size distribution increases, the spectral width and spectral difference increase and the minimum fractal dimension decreases, which means that it is not beneficial to flocculation and flocculation growth. However, when it continues to increase, the opposite result appears because of the increase of effective distance ratio and interparticle force between particles.

通过用显微图像分析仪观察絮凝状态并基于多重分形方法和扩展的DLVO理论计算微粒间的作用力，研究了粒径分布对水泥地面石灰石悬浮液中絮凝及其生长的影响。结果表明，在水泥地面石灰石悬浮液中，粒径分布具有明显的分形特征，絮凝作用及其生长具有多重分形特征。分形谱的谱宽，谱差和最小分形维数分别用来描述絮凝物的空间排列，大小分布和平均状态。絮凝生长的多重分形谱可用于描述絮凝物的生长。比较一下 絮凝形成过程的多重分形谱具有完整性和简化性的优点。当粒度分布的分形维数增加时，光谱宽度和谱差增加，最小分形维数减小，这意味着这不利于絮凝和絮凝生长。但是，当其继续增加时，由于有效距离比和粒子之间的粒子间力的增加而出现相反的结果。