-38-第46卷第3期非金属矿Vol.46No.32023年5月Non-MetallicMinesMay,2023掺钼尾矿胶凝材料的水化反应机理研究狄燕清1,2,3孙佳1,2,3崔孝炜1,2,3*李峰1,2,3南宁1,2,3刘璇1,2,3（1商洛学院化学工程与现代材料学院，陕西商洛726000；2商洛学院陕西省尾矿资源综合利用重点实验室，陕西商洛726000；3商洛学院陕西省矿产资源高效清洁转化与新材料工程研究中心，陕西商洛726000）摘要以钼尾矿、矿渣、熟料和石膏为主要原料，制备多固废胶凝材料。研究钼尾矿掺量对净浆试块力学性能的影响，利用X射线衍射（XRD）、傅里叶红外光谱（FT-IR）、扫描电镜（SEM）等分析钼尾矿胶凝材料的水化反应机理。结果表明，随着钼尾矿掺量的增加，胶凝材料净浆试块抗压强度逐渐降低，胶凝材料中较适宜的钼尾矿掺量为30%，净浆试块28d抗压强度可达到43.10MPa。钼尾矿废渣胶凝材料的水化产物主要是钙矾石（AFt）和水化硅酸钙（C-S-H）凝胶，多种水化产物相互交织，促进试块强度增长。关键词钼尾矿；胶凝材料；抗压强度；水化产物中图分类号：TD926.4;TU528文献标志码：A文章编号：1000-8098(2023)03-0038-04StudyonHydrationReactionMechanismofCementitiousMaterialPreparedwithMolybdenumTailingsDiYanqing1,2,3SunJia1,2,3CuiXiaowei1,2,3*LiFeng1,2,3NanNing1,2,3LiuXuan1,2,3(1CollegeofChemicalEngineeringandModernMaterials,ShangluoUniversity,Shangluo,Shaanxi726000;2ShaanxiKeyLaboratoryofCom-prehensiveUtilizationofTailingsResources,ShangluoUniversity,Shangluo,Shaanxi726000;3ShaanxiEngineeringResearchCenterforMineralResourcesClean&EfficientConversionandNewMaterials,ShangluoUniversity,Shangluo,Shaanxi726000)AbstractThemultiplewastecementitiousmaterialwaspreparedwithmolybdenumtailings,slag,clinkerandgypsumasmainrawmaterials.Theinfluenceofmolybdenumtailingscontentonthemechanicalpropertiesofthenetpulptestblockwasstudied.ThehydrationreactionmechanismofthecementitiousmaterialofmolybdenumtailingswasanalyzedwithXRD,FT-IRandSEM.Theresultsshowedthatwiththeincreaseofmolybdenumtailingscontent,thecompressivestrengthofcementitiousmaterialgraduallydecreased.Thesuitablemolybdenumtailingscontentwas30%,andthecompressivestrengthofthenetpulptestblockof28dcouldreach43.10MPa.Thehydrationproductsofthecementing...
