-47-第46卷第1期非金属矿Vol.46No.12023年1月Non-MetallicMinesJanuary,2023不同激发剂对陶瓷微粉水泥胶砂强度的影响王倩1,2李华伟1,2*刘飞宇1(1武夷学院土木工程与建筑学院，福建武夷山354300；2闽北山地地质灾害防治福建省高校工程研究中心，福建武夷山354300）摘要为了研究陶瓷微粉作为辅助胶凝材料的可行性，以30%陶瓷微粉作为辅助胶凝材料替代水泥，选用4种不同激发剂提升陶瓷微粉的活性，并利用X射线荧光光谱（XRF）、X射线衍射（XRD）、扫描电镜（SEM）等对原料及胶结体的化学组成、矿物组成及微观形貌等进行表征和分析。结果表明，4%Na2SO4对陶瓷微粉水泥砂浆体系的早期活性提升效果最好，其3d强度较不添加激发剂的基准组提高61.1%，但会引起结构内部损伤，影响后期强度；而8%电石渣作为激发剂能够促进陶瓷微粉水泥砂浆水化硅酸钙（C-S-H）、水化硅铝酸钙（C-A-S-H）凝胶的形成，对后期力学性能激发效果最好，28d强度较基准组提升27%，活性指数为0.99，且能兼顾早期强度。关键词陶瓷微粉；激发剂；强度；活性指数；微观结构中图分类号：TU528文献标志码：A文章编号：1000-8098(2023)01-0047-05EffectofDifferentActivatorsontheStrengthofCementMortarContainingCeramicMicropowderWangQian1,2LiHuawei1,2*LiuFeiyu1(1SchoolofCivilEngineeringandArchitecture,WuyiUniversity,Wuyishan,Fujian354300;2FujianUniversityEngineeringResearchCenterforthePreventionandControlofGeologicalHazardsinNorthernFujian,Fujian,Wuyishan354300)AbstractInordertostudythefeasibilityofceramicmicropowderasauxiliarycementitiousmaterial,30%ceramicmicropowderwasusedasauxiliarycementitiousmaterialtoreplacecement,fourdifferentactivatorswereselectedtoenhancetheactivityofceramicmicropowdercementmortar.Thechemicalcomposition,mineralcompositionandmicrostructureofrawmaterialsandcementswerecharacterizedandanalyzedbyXRF,XRD,SEMandothermethods.Theresultsshowthat4%Na2SO4hasthebesteffectonimprovingtheearlyactivityoftheceramicmicropowdercementmortarsystem,anditsstrengthafter3daysincreasesby61.1%comparedwiththecementmortarwithoutactivator,butitwillcauseinternaldamageofthestructureandaffectthelaterstrength;and8%carbideslagasanactivatorcanpromotetheformationofC-S-HandC-A-S-Hgelsofceramicmicropowderce...
