The significant improvement in the rheological behavior with changing the particle size distribution may be explained in terms of spatial rearrangement of the particles, and apparent dilution effect.

• 在试验条件下，粗细颗粒质量百分比为40:60时体系具有最低的黏度，煤浆性质由同浓度的细颗粒体系的非牛顿流体转变为牛顿流体。