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《聚羟酸高效减水剂的研究（study on poly (hydroxy acid) superplasticizer）》由会员上传分享，免费在线阅读，更多相关内容在教育资源-天天文库。
1、聚羟酸高效减水剂的研究（Studyonpoly(hydroxyacid)superplasticizer）Abstract:waterreducingagentisanimportantconcreteadmixture,whichcanreducethewatercementratioofconcreteandimprovethestrengthanddurabilityofconcrete.Inmanysuperplasticizer,withcomblikemolecularstructureofpolycarboxylatesuperplas
2、ticizerbecauseofitshighwaterreducingrate,slumpretention,goodperformance,lowdosage,noobviousretardingperformance,becomethefocusofinternationalresearchdevelopmentandapplicationofdomesticinrecentyears.Polycarboxylatesuperplasticizerischlorinefreeandlowalkali,highwaterreducingrate,
3、highworkability,concreteworkability,slumpretention,outstandingperformance,earlystrengthandpoststrengthisexcellent,cansignificantlyenhancetheadaptabilityofdifferentcement.Thispaperanalyzestheperformanceandcharacteristicsofpolycarboxylicacidwaterreducingagent,expoundsthepolycarbo
4、xylatesuperplasticizerathomeandabroad,introducestheapplicationandexperienceofpolycarboxylicacidwaterreducingagentinengineering,anditsapplicationprospect.[text]Developmentof1.polycarboxylatesuperplasticizerDevelopmentof1.1carboxylicacidsuperplasticizerinforeigncountriesInabroad,
5、thestudyofpolycarboxylatesuperplasticizerhasalonghistory,anditsapplicationtechnologyismature.Superplasticizer(alsoknownassuperplasticizer)isanimportantconcreteadmixture,itcannotonlygreatlyimprovethemechanicalpropertiesofhighstrengthconcreteL,butalsoprovideasimpleandeasyconstruc
6、tionprocess.Sincenaphthalenesuperplasticizerexposedsomeinsurmountableproblemsinrecentdecadesofdevelopmentinthiscentury,on80s,foreigncountriesbegantoactivelydevelopnonnaphthalenesuperplasticizer,withrichpetroleumchemicalproductsasrawmaterials,withhighwaterreducingrate.Thesmallsl
7、umplossmakesthenaphthalenewaterreducingagentbeeclipsed,thuscreatinganewsituationofpolycarboxylateconcretewaterreducingagenttechnologyandconcreteconstructiontechnology.Withtheprogressofconcreteconstructiontechnology,superplasticizerplaysanimportantroleinimprovingthequalityandser
8、vicelifeofbuildings,reducingenergyconsumption,savingce
