Physical Properties and Hydration of Cementitious Materials Prepared from Vanadium Slag and Phosphate Slag
来源期刊：Journal Of Wuhan University Of Technology Materials Science Edition2018年第6期
论文作者：张鹏羽 OU Leming 刘琨 LI Wentao
文章页码：1459 - 1464
摘 要：The physical properties and hydration of a cementitious material, which prepared mainly from the vanadium slag and phosphate slag, were investigated. These slags were investigated can be reused as original resources to prepare cement clinker based on the fact that they mainly comprise silicon and calcium phases, respectively. In this research, a batch of cement having various grades was prepared by mixing the clinker with gypsum, tailings, and fly ash. X-ray diffraction（XRD）, differential thermogravimetric（DTG） as well as scanning electron microscopy（SEM） were applied to test and analyze the physical properties and hydration of the prepared cement. Experimental results suggest that the performances of the cement meet the requirements of national standards in all aspects. Its hydration process is similar to that of common Portland cement, whose hydrates were mainly composed of C-S-H, ettringite and CH. Moreover, the addition of fine particles would accelerate cement hydration, as it provided additional surfaces to help the nucleating and growing of hydrates.
张鹏羽1,2，OU Leming1,2，刘琨1,3，LI Wentao1
1. School of Minerals Processing & Bioengineering, Central South University2. Key Laboratory of Hunan Province for Clean and Efficient Utilization of Strategic Calcium-containing Mineral Resources, Central South University3. Key Laboratory for Mineral Materials and Application of Hunan Province, Central South University
摘 要：The physical properties and hydration of a cementitious material, which prepared mainly from the vanadium slag and phosphate slag, were investigated. These slags were investigated can be reused as original resources to prepare cement clinker based on the fact that they mainly comprise silicon and calcium phases, respectively. In this research, a batch of cement having various grades was prepared by mixing the clinker with gypsum, tailings, and fly ash. X-ray diffraction（XRD）, differential thermogravimetric（DTG） as well as scanning electron microscopy（SEM） were applied to test and analyze the physical properties and hydration of the prepared cement. Experimental results suggest that the performances of the cement meet the requirements of national standards in all aspects. Its hydration process is similar to that of common Portland cement, whose hydrates were mainly composed of C-S-H, ettringite and CH. Moreover, the addition of fine particles would accelerate cement hydration, as it provided additional surfaces to help the nucleating and growing of hydrates.
关键词：
