無(wú)熟料膠凝材料膠砂與混凝土性能的試驗(yàn)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號(hào) concrete.

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

0 引言

傳統(tǒng)意義上的硅酸鹽水泥混凝土對(duì)自然資源的消耗和生態(tài)破壞是顯著的，對(duì)于雙碳目標(biāo)而言，硅酸鹽水泥必須逐漸減少生產(chǎn)和應(yīng)用。（剩余6452字）