预览加载中,请您耐心等待几秒...
1/4
2/4
3/4
4/4

在线预览结束,喜欢就下载吧,查找使用更方便

如果您无法下载资料,请参考说明:

1、部分资料下载需要金币,请确保您的账户上有足够的金币

2、已购买过的文档,再次下载不重复扣费

3、资料包下载后请先用软件解压,在使用对应软件打开

不同骨料粒径对透水混凝土性能影响研究 Abstract: Thestudyinvestigatestheeffectofdifferentaggregatesizesonthepropertiesofperviousconcrete.Perviousconcreteisatypeofconcretethathastheabilitytoallowwatertopassthroughit,whichmakesitapopularmaterialinconstructinggreeninfrastructuresuchaspavements,sidewalks,andparkinglots.Thestudyconductedlaboratoryexperimentstoexaminehowdifferentaggregatesizesaffectthepermeability,compressivestrength,andporosityofperviousconcrete.Theresultsshowthattheaggregatesizehasasignificantimpactonthepropertiesofperviousconcrete,andtheoptimalaggregatesizeforachievingdesirableperformancedependsonthespecificapplicationoftheconcrete. Introduction: Perviousconcreteisatypeofconcretethathasanopenvoidstructurethatallowswatertopassthroughit,resultinginsignificantreductioninsurfacerunoffandfloodcontrol.Theuseofperviousconcretehasgainedincreasingattentioninrecentyearsduetoitsenvironmentalbenefitsandpotentialtosolveurbandrainageproblems.Perviousconcreteismadeofcoarseaggregate,cement,water,andsometimeschemicaladditives,andithasalowwater-to-cementratiotoachievehighstrengthanddurability.Thesizeoftheaggregateisacriticalfactorindeterminingthepropertiesofperviousconcrete,asitaffectstheporosity,permeability,andcompressivestrengthofthematerial. Inthisstudy,weinvestigatetheeffectofdifferentaggregatesizesonthepropertiesofperviousconcrete.Specifically,weaimtoexaminehowtheaggregatesizeaffectsthepermeability,compressivestrength,andporosityoftheperviousconcrete,andtoidentifytheoptimalaggregatesizefordifferentapplicationsoftheconcrete. ExperimentalProcedure: Theexperimentalprocedureconsistedofpreparingperviousconcretemixtureswithvaryingsizesofcoarseaggregateandtestingthepropertiesoftheconcretespecimens.TheconcretewasmadeofPortlandcement,water,andcoarseaggregate,withawater-to-cementratioof0.28.Thecoarseaggregatesizesusedinthestudywere10mm,20mm,and30mm.ThemixproportionsoftheconcreteusedinthestudyarepresentedinTable1. Table1.MixProportionsofPerviousConcrete MixProportions(kg/m3) Cement400 Water112