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中文摘要：
研究了4种减少剂不同复配比例对石人沟铁矿全尾砂新型胶凝材料（不含水泥，由工业废渣组成）28d强度的影响。结果表明：充填体强度随着减水剂不同复掺含量强度相差很大，当萘系（NX）、氨基（AJ）、木钙（MG）、脂肪族（ZF）4种外加剂的复掺含量分别为0．6％、0．1％、0．0％、0．6％（占胶凝材料的质量分数），料浆质量分数70％，胶砂比1：10时，养护28d的全尾砂胶结充填体强度可达到4．13MPa，是相同条件下未掺减水剂试块强度的1．6倍。通过X射线衍射和扫描电镜分析，减水剂使新型胶凝材料水化更加彻底，结构更加完整、致密．
英文摘要：
The effects of different compound ratio of 4 types of water-reducers on the 28 d strength of neotype whole-tailings ce- menting materials （ containing no cement, being composed of in- dustrial waste residue ） in Shirengou Mine was investigated. Re- sults show that the differences of backfilling body strength are very significant with the different compound ratio of water-reduc- ers. As the mass compound ratio of water-reducers is 0.6% for naphthalene （NX）, 0.1% for aminosulfonic（AJ）, 0. 0% for lig- nosulfonate（MG） and 0. 6% for aliphatic（ZF）, with the slurry concentration being 70% and the ratio of the cementing material to whole-tailings 1： 10 , the strength of the whole-railings ce- menting backfilling body for curing of 28 d could reach 4.13MPa, which is 1.6 times of blank specimen at the same concentration and cement-sand ratio. By the analyses of X-ray diffraction and scanning electron microscopy, water-reducers bring about higher hydration degree of cementing materials, more compact and com- plete inner microstructure formed in cement stone.
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