concrete mix design - my portal 4 my students混凝土配合比设计-我的门4我的学生

《concrete mix design - my portal 4 my students混凝土配合比设计-我的门4我的学生》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、ASSIGNMENTBRIEF2TitleofAssignment:ExperimentationinLaboratoryScenarioYouareworkingasaSeniorLaboratoryTechnicianatSureBetulLaboratorySdn.Bhd.Youhavebeenassignedtoconductlaboratoryexperimentationsforconcrete.Thematerialneedtobetestedbeforeitcanbeusedforconstruction.Fromtheexperimen

2、tation,youhavetopreparealaboratoryreportbasedontheresultsobtainedfromtheexperimentsforyourclientrecord.TASK1(LOC4:AC1)Conducttheexperimentsaslistedbelow:1.SieveAnalysis2.SlumpTest3.CompactionFactorTestTASK2(LOC4:AC2-AC5)1.Recordyourdatabaseontheresultsoftheexperiments.2.Doallnece

3、ssarycalculationsassociatedwiththeexperiments.3.Analyzetheresultandanalysisoftheexperiments.a)Forsieveanalysistest,analyzethecompositionofaggregatesintermofsizeandpercentagebypresentingtheminanappropriatetablesandgraph.b)Forslumptest,identifyanddiscussthetypeofslumpobtainedfromth

4、etestconducted.c)Forcompactionfactortest,analyzetheresultorthefactorofworkabilityoftheconcretebyusingtheformulaofcompactionfactor.4.Generateaccurateconclusionsfromtheresults.Tests:1.SieveAnalysisTestObjective:ToobtaingradingcurveforfineaggregatesApparatus:1)Balanceorscale2)Sieves

5、withstandardsizeof10mm,5mm,2.36mm,1.18mm,600μm,300μm&150μm.3)MechanicalSieveShaker4)OvenProcedures:1)Weightabout500goffineaggregate2)Drythesamplestoconstantweightinthefurnaceatatemperatureof105˚±5˚C.1)Coolthesamplesandnestsievesinorderbeforeplacingthesamplesonthetopsieve.2)Startt

6、heshaker,determinetheweightofeachsizeandplotgraphbasedonthedata.ConcreteMixDesignFigure3.13:RelationshipbetweenstandarddeviationandcharacteristicsstrengthTable3.10Table3.11Figure3.14:Relationshipbetweencompressivestrengthandfree-water/cementratioTable3.8Table3.12Table3.13Figure3.

7、15:EstimatedwetdensityoffullycompactedconcreteFigure3.16:Proportionoffineaggregateaccordingtopercentagepassing600µm1.ConcreteMixDesignObjective:ToproduceconcreteofthespecifiedpropertiesProcedures:1)Calculatethevolumeofconcreteneededforthetests2)Selectstandardmix-ST5fromTable3BS55

8、28.(attachedasappendix)3)Determinethemix