摘要
对比研究了矿粉、粉煤灰、硅酸盐水泥、高铝水泥和碱环境下矿粉对脱硫石膏力学性能、耐水性能的影响,并通过SEM、XRD等微观分析探究了改性材料的作用机理。研究结果表明:m脱硫石膏:m矿粉:mCaO:m减水剂=4:1:0.3:0.04,在水胶比为0.41时,改性脱硫石膏的抗压强度达到了38.2 MPa,软化系数为0.67。
This paper compares to study the influence of slag powder, fly ash, Portland cement, alumina cement and alkali on the mechanical properties and water resistance of desulfurized gypsum, and explores the mechanism of modified material by microscopic analysis such as SEM and XRD. The testing results show that when the mix ratio desulfurized gypsum, slag powder, CaO, water reducing agent is 4:1:0.3:0.04, when the water-binder ratio is 0.41, the compressive strength and the softening coefficient of the modified desulfurized gypsum can reach 38.2 MPa and 0.67.
作者
余海燕
李永强
王蕾
YU Hai-yan;LI Yong-qiang;WANG Lei(School of Materials Science and Engineering,Tianjin Chengjian University,Tianjin 300384,China;Key Laboratory of Fujian Province Green Building Technology,Fujian Academy of Building Research Co.,Ltd.,Fuzhou 350025,China)
出处
《河南城建学院学报》
CAS
2019年第4期45-53,共9页
Journal of Henan University of Urban Construction
基金
天津市科委优秀科技特派员奖励项目(17JCTPJC51700)
关键词
脱硫石膏
改性材料
力学性能
软化系数
desulphurized gypsum
modified material
mechanical property
softening coefficient
