摘要
为了研究卤水对尾砂胶结充填体强度的影响规律,开展了不同养护龄期、不同搅拌水、不同灰砂比条件下的充填体的强度试验。试验结果显示:充填体试块强度与养护龄期呈乘幂函数关系;卤水会提高充填体的早期强度(7d),但会降低充填体的长期强度(7～28d);通过对充填体强度影响因素极差分析,得出养护龄期为影响充填体强度的主要因素。
In order to study on the effect of brine on the strength of tailings cemented backfill,the strength test of fillings under different curing ages,different mixing waters and different sand-sand ratios is carried out.The test results show that the strength of the filling block and the maintenance age are a power function relationship.Brine will increase the early strength of the filling(7 d),but will reduce the long-term strength of the filling(7-28 d).Through the analysis of the extremely poor influencing factors of the filling body strength,the curing age is the main factor affecting the strength of the filling body.
作者
王永霞
WANG Yongxia(Inner Mongolia Vocational and Technical College,Chifeng 024005,China)
出处
《中国矿业》
北大核心
2019年第4期141-145,共5页
China Mining Magazine
关键词
卤水
充填体
强度
影响因素
brine
filling body
strength
influencing factor
