超高强RPC专用早强型聚羧酸系减水剂的制备.pdf

中国科技核心期刊 新癯建巍粉觑 超离强RPC专用早强型聚菝酸系 减水剂的制备 郝利炜 [北京建筑材料科学研究总院，固废资源化利用与节能建材国家重点实验室(筹)，北京100041] 聚羧酸减水剂专业制造商三瑞企业 摘要：主要介绍一种RPC专用早强型聚羧酸系减水剂的制备方法。采用正交试验确定了减水剂的最佳合成配方，通过对所制 备RPC的强度、流动度、凝结时间等性能测试结果表明，自制减水剂具有早强、减水率高的特点，能满足RPC的工作性能和力学性 能要求，适用y-RPC的牛产。 关键词：聚羧酸减水剂：RPC：活性粉末；早强 中图分类号：TU528．042 文献标识码：B 文章编号：1001—702X(2013)03—0026—03 ofa with onreactive concrete Developmentpolycarboxylatesuperplasticizerearly-agestrength powder HA0Liwet Materials ofScienceResearch，SolidWasteResourcesUtilizationand (BeijingBuilding Academy MaterialsState 100041，China) EnergySavingBuilding KeyLaboratory，Beijing Abstract：Thisintroducesfl methodof with onreactive paper preparation polycarboxylatesuperplasticizerearly-agestrength of concrete(RPC)．Thebest formulathe isdeterminedthe test．The powder synthesis polyearboxylatesuperplastieizer by orthogonal ofRPCwith thatinclude weretested．Theresultsshowed performance polycarboxylatesuperplasticizerstrength，settingtime，fluidity thatthe hasexcellent of and waterreductionratio，can the polycarboxylatesuperlasticizer propertiesearlystrengthhigh satisfy andmechanicalofRPC．Itcanbe tothe ofRPC． workingperformance property applicableproduction powder；earlystrength Keywords：polycarboxylatesuperlasticizer；PRC；reactive MPa)，是高性能混凝土的2～3倍；抗折强度可达到50--60MPa， 0前言