针对某矿山采用水泥作为充填胶凝材料，存在充填体强度低、灰砂比大、充填运营成本高昂的问题，以该矿山的充填胶凝材料选择和充填料配比参数设计为研究基础，开展了全尾砂新型胶凝材料胶结充填体和水泥胶结充填体强度对比试验，研究了全尾砂的基本物理力学特性，并在此基础上测试了不同灰砂比、不同料浆浓度全尾砂充填体试件单轴抗压强度。结果表明：该矿山的全尾砂属于偏细尾砂，添加表面胶凝材料能够降低颗粒间的相互摩擦，从而增加塌落度；通过多种胶凝材料比选，Z9#胶固粉对该矿山的胶结效果要优于常用的强度等级 42.5普通硅酸盐水泥，在相同条件下，新型胶凝材料试件强度为水泥试件强度的 2～3倍，可使全矿充填成本降低约29.8 %。

For a certain mine that uses cement as the backfill binder, problems such as low backfill strength and ahigh cement⁃sand ratio have resulted in high backfill operating costs. Based on the selection of backfill cementitiousmaterials and the design of mix proportion parameters for this mine, comparative strength tests were carried outbetween cemented ungraded tailings backfill using a novel cementitious material and that using cement. The basicphysical and mechanical properties of the ungraded tailings were studied, and, on this basis, the uniaxial compressivestrength of ungraded tailings backfill specimens with different cement⁃sand ratios and different slurry concentrationswas tested. The results show that the ungraded tailings from this mine are relatively fine, and the addition of surface⁃active cementitious materials can reduce interparticle friction, thereby increasing the slump. Through comparison ofmultiple cementitious materials, the novel Z9# cementitious material was found to produce a better cementing effect onthe copper mine than ordinary Portland cement of strength grade 42.5. Under the same conditions, the strength of specimensusing the novel cementitious material was 2-3 times that of specimens using cement, and the overall backfill cost of themine could be reduced by approximately 29.8 %.