无熟料胶凝材料胶砂与混凝土性能的试验研究

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MENG Wenhui，SONG Shaomin

（Beijing University of Civil Engineeringand Architecture，Beijing Key Laboratory of Building Structure and Environmental Remediation Functional Materials，Beijing 1OoO44，China）

Abstract：Slag，flyash，steellag，irontailingspowder，slakedime，desulfurizationgypsum，etc.，areappliedasrawmaterals to studytheprepaaiofoclinkrcemeitiousmaterialsandtepropetisoforaradcocete.Teeperimetalsultsindicateat the standard consistency water consumption of non clinker cementitious materials is between 28.5% and 30.5% ，and the initial setting timeisgreaterthan15Omin，whilethefinalsetingtimerangesfrom2OOminto46Omin；ThetypeInonclinkercementitiousmaterial withoutaddingcementisused.Tegeneralmortarwithhighsteeslgcontenthasahigherearlycompresivestrength，anditsspecial mortaralso hasa higher compressive strength that can reach 5O MPa at 56 ；P·I type Portland cement with no more than 5% cementitiousmaterialsisaClassIonclinkercementitiousmaterial.Tompresivestrengthofgenealandspecialedtitious sandwithlowstellgcotentandighgysucontentiselativelygTeompresivestrengthofthesupergrou'sspealoar can reach 35MPa after28d and 45 MPa after 56 ；The concrete test was conducted using a cementitious material ratio with better mortarstrength.Theoneteioutclinkercmentitousmaterialsowdgodworkabilityandteompressestrengtatdtte strengthrequirementsof C2O-C25concrete，whilethecompresivestrengthat56daysmetthestrength requirementsof C25-C30 （20号 concrete.

Keywords：clinker-free cementitious materials；mortar；concrete；workability；strength

0 引言

传统意义上的硅酸盐水泥混凝土对自然资源的消耗和生态破坏是显著的，对于双碳目标而言，硅酸盐水泥必须逐渐减少生产和应用。（剩余6452字）