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1、HansJournalofCivilEngineering土木工程,2018,7(1),109-116PublishedOnlineJanuary2018inHans.http://www.hanspub.org/journal/hjcehttps://doi.org/10.12677/hjce.2018.71014TheEffectoftheMortarViscosityontheSurfacePropertiesofSelf-CompactingFair-FacedConcreteHongliYu1*,JiaQi
2、n1,DetongWu2,HonggenQin2,ChaomingPang2#1CCCCFirstHighwayEngineeringCo.Ltd.SecondEngineeringCo.,Ltd.,SuzhouJiangsu2SchoolofMaterialScienceandEngineering,SoutheastUniversity;JiangsuKeyLaboratoryofCivilEngineeringMaterials,NanjingJiangsuthrdthReceived:Jan.11,2018;
3、accepted:Jan.23,2018;published:Jan.30,2018AbstractThispaperstudiesthemortarplasticviscosityandthesurfacepropertiesofself-compactingfair-facedconcrete,andthesoftwareImage-ProPlusisusedtoquantificationallyanalyzethesur-faceproperties.Themortarrheologicalpropertie
4、saredescribedbyapplyingBinghamfluid.Theresultsindicatethattheviscositypropertiesofmortarintheself-compactingfair-facedconcreteareinlinewiththerheologicalequationofBinghamfluid,whichshowsthatthemortarplasticviscosityisasignificantfactorforthesurfacepropertiesofs
5、elf-compactingconcrete,butthecor-relationbetweensurfacepropertiesandtheyieldshearstressortheflowvelocityislow.Thein-creaseofwatercontentoraddingairentrainingagent,canreducetheplasticviscosityandshearyieldstress,buttheequalvolumereplacementofriversandwithlightsa
6、ndcanonlyreducetheplasticviscosity,buttheyieldshearstresswillincrease.Withtheincreaseofplasticviscosity,thepercentageofsurfaceporeareasgraduallyincreases,theporesizedistributionbecomeswider,andthenumberofporewiththediametermorethan2mmincreases;furthermore,thedi
7、ameterofthebiggestporebecomeslarger.Theself-compactingconcretewiththeplasticviscositylessthan9.37Pa∙shasabetterfair-facedsurface.Inthiscondition,thepercentageofthesurfaceporeareasislessthan0.2%,andthediameterofthebiggestporeislessthan5mm.KeywordsPlasticViscosit
8、y,Self-Compacting,Fair-Faced,SurfaceProperties,Images*第一作者。#通讯作者。文章引用:尉洪利,秦佳,吴德通,秦鸿根,庞超明.砂浆塑性粘度对自密实清水混凝土表观性能的影响[J].土木工程,2018,7(1):109-116.DOI:10.12677/hjce.2018.71014尉洪利等砂浆塑
