摘要
采用半干法脱硫灰与偏高岭土复掺(质量比为5∶1),部分替代硫铝酸盐水泥,NaOH为碱激发剂,聚羧酸为减水剂,制备脱硫灰-偏高岭土碱激发胶凝材料,研究半干法脱硫灰掺量对碱激发胶凝材料力学性能的影响。通过XRD分析微观特性。结果表明:半干法脱硫灰最佳掺量为18%,其掺量增加会增强钙矾石(AFt)衍射峰强度。
The desulfurization ash-metakaolin alkali-activated cementitious material was prepared by compounding semi-dry desulfurization ash with metakaolin(with a mass ratio of 5∶1)to partially replace sulphoaluminate cement.NaOH was used as the alkali activator and polycarboxylic acid was used as the water reducing agent.The influence of the dosage of desulfurization ash on the mechanical properties of the material was studied.The microstructure was analyzed by XRD.The results show that the optimal dosage of desulfurization ash is 18%,and the increase of its dosage will enhance the intensity of the AFt diffraction peak.
作者
孙健博
陈德鹏
郭明磊
SUN Jian-bo;CHEN De-peng;GUO Ming-lei(School of Civil Engineering and Architecture,Anhui University of Technology,Ma’anshan 244302,China)
出处
《建材世界》
2025年第4期39-42,共4页
The World of Building Materials
基金
国家重点研发计划项目(2021YFB3802005).
关键词
硫铝酸盐水泥
半干法脱硫灰
力学性能
水化产物
sulphoaluminate cement
semi-dry desulfurization ash
mechanical properties
hydration product
