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针对某硫铁矿应用长江砂胶结充填体存在的质量问题，采用向长江砂胶结充填料中加掺合料及减水剂的方法．结果表明，采用这种方法，提高了江砂胶结充填体的强度，为该矿安全采矿、充分回收资源提供了科学依据．
Aiming at the quality problems of the Yangtze River sand cemented filling body used in a pyrite mine, a method of adding admixture and water-reducing agent into the cemented filling material of the Yangtze River is adopted. The results show that using this method can improve the strength of the sand-filled cementing body and provide a scientific basis for safe mining and resource recovery.