Properties and mechanism of red mud (RM) in the preparation of ultra-lightweight sludge-red mud ceramics (ULS-RMC)
New ceramic materials-ultra-lightweight sludge-red mud ceramics (ULS-RMC) were prepared by red mud (RM), clay and dried sewage sludge (DSS). And the properties and mechanism of RM in the preparation of ULS-RMC were discussed. The chemical components, thermal properties and mineral phases of RM were determined by EDX, DSC/TGA and XRD, respectively. Constant dosage of DSS to clay and different addition of RM were utilized in the preparation of ULS-RMC. Physical properties (bulk density, grain density, water absorption and expansion ratio), XRD and SEM were employed to characterizing ULS-RMC. The results showed that the high hydroscopic property and good water-retention property of RM were demonstrated by the thermal analysis, and bloating property and fluxing property of RM were caused by abound of gasous components and flux, respectively. The mentioned two chemical properties were utilized to discuss the in mineral phases and microstructures differences between ULSC and ULS-RMC.
Yuanfeng Qi Qinyan Yue Fei Xi Baoyu Gao Min Yue Shuxin Han Zhou Li
Shandong Key Laboratory of Water Pollution Contal and Resource Reuse,School of Environment Science and Engineering, Shandong University, Jinan, 250100,China
国际会议
北京
英文
1368-1382
2010-05-17（万方平台首次上网日期，不代表论文的发表时间）