摘要
以磷渣为主要原料,采用复掺熟石灰和粉煤灰制备磷渣基胶凝材料。结果表明:熟石灰为磷渣的水化提供碱性环境,充分激发磷渣的潜在活性,主要提高磷渣基胶凝材料早期强度,熟石灰最佳掺量为5%。粉煤灰可以弥补磷渣中氧化铝的不足,主要提高磷渣基胶凝材料的后期强度。制备出的磷渣基胶凝材料等量代替42.5水泥,代替水泥比例不同可以制备出满足不同强度等级复合水泥的技术要求。
Phosphorus slag was used as the main raw material to prepare phosphate slag-based cementitious materials. The experimental results showed that hydrated lime provided an alkaline environment for the hydration of phosphorus slag and fully stimulated the potential activity of phosphorus slag. The main purpose was to improve its early strength. Fly ash can make up for the deficiency of alumina in phosphorous slag. The phosphorus-slag-based cementitious materials prepared can replace 42.5 cement by the same amount, and can meet the technical requirements of composite cement with different strength grades with different proportion of substitution.
作者
朱丽苹
Zhu Liping(Faculty of Chemistry and Environment Science, Qujing Normal University, Qujing, Yunnan 655011)
出处
《非金属矿》
CAS
CSCD
北大核心
2019年第4期28-30,共3页
Non-Metallic Mines
基金
云南省教育厅项目(2018JS450)
曲靖师范学院校级青年项目(2013QN027)
大学生创新训练项目(201710684017)
关键词
磷渣
粉煤灰
熟石灰
抗压强度
抗折强度
phosphorus slag
fly ash
hydrated lime
compressive strength
flexure strength
