摘要
本文采用激光粒度分析仪测试超硫酸盐水泥粉体粒径,用以反映超硫酸盐水泥的粒径分布;采用机械压力法制备的超硫酸盐水泥干粉压实体,其空隙率可以宏观上反映颗粒间的物理堆积密实度;根据Dinger-Funk数学模型得出粉体最佳颗粒群分布即最紧密堆积颗粒群分布;运用灰色关联分析原理考察粉体实际颗粒群分布与最紧密堆积颗粒群分布的相关性;基于以上分析建立水泥净浆抗压强度与超硫酸盐水泥堆积效应的关系。试验结果表明:超硫酸盐水泥粉体实际颗粒群分布与最紧密堆积颗粒群分布的相关性越高,压实体空隙率越低,抗压强度越高。
The practical particle size distributions of different kinds of powder were tested by laser scattering particle analyzer. The void volume of compacted SSC cylinder prepared by mechanical pressing reflects packing density of SSC particles. The particte size distribution with the theory densest packing was obtained according to Dinger-Funk equation. The relationship between of real particle distribution and the densest packing was gained according to the theory of grey correlation. The compressive strength of SSC pastes was also tested in the paper. The relationship between the SSC packing and the compressive strength was finally analysised. The test showed that the lower void volume the more compressive strength is and the higher correlation between the real particle size distribution and the densest packing is, the higher the compressive strength is.
出处
《硅酸盐通报》
CAS
CSCD
北大核心
2015年第9期2702-2706,共5页
Bulletin of the Chinese Ceramic Society
基金
中国建筑股份有限公司资助课题(CSCEC-2014-Z-34)
关键词
堆积效应
抗压强度
最紧密堆积
空隙率
packing effect
compressive strength
densest packing
porosity
