含氨粉煤灰对充填膏体性能影响试验研究

针对含氨粉煤灰对煤矿充填环境和充填膏体性能的影响，以岱庄煤矿粉煤灰为研究对象，分析测定了其含氨来源和含氨量，并对含氨粉煤灰对充填体的性能影响进行实验研究和机理分析。结果表明：粉煤灰氨含量为0.16%，超过正常标准，导致在充填过程中有刺激性气体释放，影响采空区的施工环境|粉煤灰含氨会导致充填膏体凝结时间延长、强度降低，且随着含氨量的增加，对膏体性能影响更加严重。

Ammonia Content Test of Fly Ash and Its Effect on The Performance of Filling Paste

As a paste filling material for coal mines, ammonia-containing fly ash will not only affect the filling environment, but also affect the performance of the filling paste, which will affect the safety of coal mine filling. This experiment analyzes the ammonia source of fly ash, tests the ammonia content of fly ash, and conducts experimental research and mechanism analysis on the influence of ammonia fly ash on the performance of the filling body. The results show that the ammonia content of fly ash is 0.16%, which exceeds the normal standard, which leads to the release of irritating gas during the filling process, which affects the construction environment of the goaf. The ammonia content of fly ash will lead to the prolongation of the filling paste and the strength. It decreases, and as the ammonia content increases, the effect on the paste performance is more serious.