太原理工大学学报2026，Vol.57Issue(4)：758-765,8.DOI:10.16355/j.tyut.1007-9432.20240238
基于煤气化细渣的辅助胶凝材料对砂浆性能影响及水化行为研究
Influences of Auxiliary Cementitious Materials Based on Coal Gasification Fine Slag on Mortar Performance and Hydration Behavior
摘要
Abstract
[Purposes]Coal gasification fine slag is a solid waste formed during the coal gasifica-tion process.[Methods]To improve its utilization rate,in this research,the substitution of part of ce-ment with coal gasification fine slag was conducted.The setting time of paste,workability,and me-chanical properties of the mortar were investigated.Besides,the hydration mechanism of the coal gas-ification fine slag-cement composite was analyzed by using isothermal calorimetry,XRD,scanning electron microscopy,and thermodynamic simulation.[Results]The results indicate that as the content of coal gasification fine slag increasing,the setting time of pure cement paste is prolonged,and the workability of the mortar gradually decreases.When the coal gasification fine slag content is 10%,the 28 d compressive strength of the mortar reaches the level of the control group.Adding an appropriate amount(not exceeding 10%)of coal gasification fine slag into cement-based materials reduces heat of hydration of cement,decreases cement consumption,and improves the utilization rate of coal gasifica-tion fine slag without significantly affecting the performance indicators of cement-based materials.关键词
煤气化细渣/水泥基材料/力学性能/水化行为/热力学模拟Key words
coal gasification fine slag/cement-based materials/mechanical properties/hydration behavior/thermodynamic simulation分类
矿业与冶金引用本文复制引用
刘冲,郭家栋,梁民,杨浩泉,孔少奇..基于煤气化细渣的辅助胶凝材料对砂浆性能影响及水化行为研究[J].太原理工大学学报,2026,57(4):758-765,8.基金项目
山西省基础研究计划(2022SX09301223073) （2022SX09301223073）
