Rheological Properties of Phosphorus Tailings-cement-microsilica Mixed Slurry  

作　　者：WANG Xiujuan WEI Yaowu WANG Jingran HE Junming ZHANG Jin YOU Dahai 

机构地区：[1]The State Key Laboratory of Refractories and Metallurgy,Wuhan University of Science and Technology,Wuhan 430081,China [2]International Joint Laboratory on New Technologies of Refractories and Metallurgy,Wuhan University of Science and Technology,Wuhan 430081,China [3]Hubei Institute of Metallurgical Geology(Central South Institute of Metallurgical Geology),Yichang 443000,China

出　　处：《China's Refractories》2025年第1期43-50,共8页中国耐火材料(英文版)

基　　金：Hubei Provincial Key Research Program Project(2023BCB099).

摘　　要：Utilizing phosphorus tailings as the raw material for foam concrete is a key approach to achieving sustainable and efficient resource utilization.During the preparation of phosphorus tailings-based foam concrete,slurry performance is critical to the successful production.Phosphorus tailings,cement and microsilica were used to prepare foam concrete slurry in this study.A rheometer was employed as a test tool to measure the variation of linear viscoelastic zone(LVR),viscosity,and yield stress of the slurries with different cement contents.The results indicate that the phosphorus tailings-cement-microsilica slurry exhibits shear-thinning properties,which aligns well with the Herschel-Bulkley model,showing a high degree of correlation.As the cement content increases,the energy storage modulus of the slurry rises,and the LVR length shows a nonlinear trend.The LVR reaches its maximum length of 0.04%when the cement content is 6 mass%or 8 mass%.The increment of the cement content leads to a more intricate internal network structure,which hinders the reconstruction rate of the flocculated structure after high-shear deformation.

关 键 词：phosphorus tailings SLURRY rheology THIXOTROPY 

分 类 号：R54[医药卫生—心血管疾病]