摘要
钒尾渣经过热活化和复合活化(化学活化和热活化)后,反应活性均有所提高。实验结果表明:当原提钒尾渣与Ca(OH)2以10∶1的比例混合并经700℃高温煅烧2 h后,反应活性最高,其生成的地聚物的抗压强度最高,在80℃水泥快速养护箱中养护3 d和7 d的抗压强度分别达到34.1 MPa和35.7 MPa。对原提钒尾渣和合成产物的分析结果证实,活化钒尾渣经碱激发制得了具有一定强度的地聚物,并初步证明了钒尾渣生成地聚物的过程中发生了聚合反应。
After thermal activation and composite activation （chemical activation and thermal activation）, the activity of vanadium tailing has improved. Experiment results showed that it has the highest activity when the raw vanadium tailing mixed in a ratio of 10：l with Ca（OH）2, then they were calcined at 700 ℃ for 2 h and geopolymer had the highest compressive strength. After curing at 80 ℃ for 3 d and 7 d in the fast curing cement box independently, its compressive strength reached at 34. l MPa and 35.7 MPa respectively. The analysis of the raw vanadium tailing and the product has confirmed that gepolymer has compounded by activated vanadium tailing under alkali-activated, and has proved that the polymerization reaction has happened in the process of geopolymer generated by vanadium tailings.
出处
《非金属矿》
CAS
CSCD
北大核心
2014年第4期1-3,共3页
Non-Metallic Mines
基金
国家"十二五"科技支撑计划重点项目(2011BAB05B04)
关键词
钒尾渣
活化方法
地聚物
抗压强度
vanadium tailing
activation methods
geopolymer
compressive strength
