卤水对尾砂胶结充填体的强度影响试验研究

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(7d~28d)。通过对充填体强度影响因素极差分析,养护龄期为影响充填体强度的主要因素。

Experimental study on the influence of brine on the strength of tailings cemented backfill

In order to study 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 was carried out. The test results show that the strength of the filling block is The maintenance age is a power function relationship: . Brine will increase the early strength of the filling (7d),but will reduce the long-term strength of the filling (7d~28d). Through the analysis of the extremely poor influence factors of the filling body strength, the curing age is the main factor affecting the strength of the filling body.