硅酸盐学报2013，Vol.41Issue(5)：582-587,596,7.DOI:10.7521/j.issn.0454-5648.2013.05.02
水泥-粉煤灰-石灰石粉复合浆体的流变性能
Rheological Properties of Compound Pastes with Cement-Fly Ash-Limestone Powder
摘要
Abstract
The rheological properties of compound pastes with cement-fly ash-limestone powder were determined by a rotation vis-cometer (mode Rheolab QC). The influences of the content and particle size of limestone powder on the yield stress, plastic viscosity and thixotropy of the compound pastes were investigated. The results show that the yield stress, plastic viscosity and thixotropy increase with the increase of limestone powder content and the decrease of particle size of limestone powder in the compound pastes. The cement-fly ash-limestone compound pastes appeared a shear thinning behavior when the shear rate increased. The plastic viscosity of pastes became stable when the shear rate further increased. The addition of limestone powder could cause the compound pastes from shear thinning to stable with the increased shear rate. The addition of 20%-40% (in mass) limestone powder could improve the rheological properties and the stability of the cement-fly ash pastes.关键词
流变性能/石灰石粉/屈服应力/塑性黏度/触变性Key words
rheological property/ limestone powder/ yield stress/ plastic viscosity/ thixotropy分类
土木建筑引用本文复制引用
马昆林,龙广成,谢友均,朱蓉..水泥-粉煤灰-石灰石粉复合浆体的流变性能[J].硅酸盐学报,2013,41(5):582-587,596,7.基金项目
国家自然科学基金项目(51178467) （51178467）
教育部新世纪优秀人才支持计划(NCET-10-0839)资助项目. （NCET-10-0839）
