颗粒级配对水泥性能影响的探讨  

Study of effect of particle size distribution on cement properties

作　　者：王爱勤[1] 张承志[1] 张宁生 

机构地区：[1]东南大学材料科学与工程系,210018 [2]惠州大亚湾房地产开发总公司

出　　处：《水泥工程》1996年第6期16-20,共5页Cement Engineering

摘　　要：本文从理论上分析了二元系统中颗粒级配对堆积密度和水化速度的影响,并据此计算、讨论了孔隙率与颗粒级配的关系。计算结果表明:(1)颗粒级配对孔隙率的影响主要体现在堆积密度和水化速率两个方面。当水化深度较小时,堆积密度是主要因素,因此,较宽的分布可得到较低的孔隙率;当水化深度较大时,应综合考虑这两个方面的影响,有一个最佳的分布,对于二元系统,最佳d_1/d_2,约为0.3。(2)两组份的相对比例主要取决于堆积密度,最低孔隙率时的配合比等于最大堆积密度时的配合比。In this paper, the theoretic analysis of the effect of the particle size distribution upon the stacking density and hydration speed in the binary system is made. The relation between the porosity and particle size distribution is discussed. The results show that (1) the particle size distribution affects the porosity mainly in the stacking density and hydration speed . If the hydration is not well developed, then the stacking density is the major factor. There-fore, the wider the particle size distribution, the lower the porosity, If the hydration is well developed, both the stacking density and hydration speed shall be considered. There shall be an optimal distribution. In the binary sys-tem, the optimal d1/d2is approximately 0. 3 (2) the relative ratio of two components mainly depends on the stacking density. The ratio at the lower porosity is the ratio at the highest stacking density.

关 键 词：颗粒分布 堆积密度 水化速率 孔隙率 水泥性能 

分 类 号：TQ172.12[化学工程—水泥工业]