摘要
通过测定多组粒径分布不同的水泥在流动度相同的情况下的需水量。得到水泥粒径分布不同对应着不同的堆积密度;推导了浆体中连续粒径粉体的堆积密度公式。用该公式计算上述不同粒径分布的水泥浆体的堆积密度及需水量,与试验值基本吻合。说明该公式可以用来模拟诸如水泥、磨细矿渣、粉煤灰等胶凝材料细颗粒的堆积密度。
Based on measuring the water requirements of slag with different size distributions on the same fluidity degree,it is revealed that different size distributions determine different packing densities,and the formula of packing density with continuous grain size distribution for cement paste is developed.By this formula the packing density of the different size distributions of slag and its water requirements are calculated and found to be the same with the testing results.The formula could simulate the packing density of the blend materials such as cement,fine-slag,and fly ashes.
出处
《交通建设与管理》
2008年第10期76-81,共6页
Transport Construction & Management
关键词
水泥净浆
需水量
连续粒径分布
颗粒堆积密度
cement paste
water requirements
continuous grain size distribution
packing density of particle
