针对传统方法测定尾砂火山灰活性周期很长的问题 ,提出了一种快速检测方法 ,用该方法每测定一个样品只需 4h.实验结果表明 :对于取自不同矿山的尾砂 ,其活性大小相差很大 ;该方法所测定的尾砂活性大小与固结体 2 8d抗压强度有相关性 Aiming at the problem that the activity of tailings volcanic ash is very long by the traditional method, a rapid detection method is proposed, in which only 4h is needed for each sample to be measured. The experimental results show that for tailings taken from different mines, The size of the tailings activity determined by the method is correlated with the compressive strength of the consolidated body at 28 days