AS 1141.30.2-2009 Methods for sampling and testing

1AS1141.30.2—2009©StandardsAustraliaAustralianStandard®MethodsforsamplingandtestingaggregatesMethod30.2:Preparationofaggregatereferencespecimensforvisualcomparison1SCOPEThisStandardsetsoutthemethodforpreparingreferencespecimensthatrepresenteachofthevisuallydistinguishablerocktypespresentinaquarriedsourceforuseinAS1141.30.1.Thereferencematerialsaresampledonthebasisofdifferencesincolour,grainsize,textureandgradeofweathering,i.e.generalappearance.Normallyasetofreferencespecimensarepreparedwhenasourceisfirstsampled.Thereafter,additionalreferencespecimensarepreparedwheneverpreviouslyunsampledmaterialsareencounteredinsubsequentsampling.Referencespecimensarenotgenerallypreparedformaterialthatisobviouslysoft,friableorcomposedofclay.2REFERENCEDOCUMENTSThefollowingdocumentsarereferredtointhisStandard:AS1141Methodsforsamplingandtestingaggregates1141.30.1Method30.1:Coarseaggregatequalitybyvisualcomparison2758Aggregatesandrockforengineeringpurposes(allparts)3PROCEDURETheprocedureforthepreparationofreferencespecimensshallbeasfollowsforeachmaterialtype:(a)DeterminethetestpropertiesofthesampleinaccordancewiththerelevantpartsofAS2758orthejobspecification.Retainsufficientmaterialfromthesamesampleforthepreparationofareferencespecimen.(b)Usingtheresultsobtained,classifythematerialinaccordancewiththeappropriatespecification(e.g.AS2758).(c)Thoroughlywashandair-drythematerialretainedforthereferencespecimen.(d)Inspecttheparticlesforhomogeneity.Itisimportantthatallparticlesbevisuallysimilarinareferencespecimen.Incaseofcontamination,thereferencespecimensampleshallbediscardedandanewsampleobtainedandtested.(e)Placesufficientnumberof10mmnominalsizeparticlesforreferencespecimenmaterialinajar.NOTE:Awide-neckscrew-typeplasticjarhasbeenfoundsuitableforthispurpose.(f)Labelthereferencespecimenjarwithanidentificationlabelandaclassificationlabel.Theidentificationlabelshallincluderocksource,type,samplelocation,nameoftheorganizationwhopreparedthesample,dateofsamplingandauniquesamplereferencenumber.(g)Prepareasmanyjarsofthisparticularmaterialtypeasarerequiredforthenumberofreferencesets.AS1141.30.2—2009AccessedbyMONASHUNIVERSITYLIBRARYon14Mar2009AS1141.30.2—20092ThisAustralianStandard®waspreparedbyCommitteeCE-012,AggregatesandRockforEngineeringPurposes.ItwasapprovedonbehalfoftheCouncilofStandardsAustraliaon10April2008andpublishedon18February2009.ThefollowingarerepresentedonCommitteeCE-012:ARRBTransportResearchAUSTROADSAustralasianRailwayAssociationAustralasianSlagAssociationAustralianAsphaltPavementAssociationAustralianChamberofCommerceandIndustryBureauofSteelManufacturersofAustraliaCementConcreteandAggregatesAustraliaEngineeringandConstructionLaboratoriesAssociationInstituteofQuarryingAustraliaNationalAssociationofTestingAuthoritiesAustraliaKeepingStandardsup-to-dateStandardsarelivingdocumentswhichreflectprogressinscience,technologyandsystems.Tomaintaintheircurrency,allStandardsareperiodicallyreviewed,andneweditionsarepublished.Betweeneditions,amendmentsmaybeissued.Standardsmayalsobewithdrawn.ItisimportantthatreadersassurethemselvestheyareusingacurrentStandard,whichshouldincludeanyamendmentswhichmayhavebeenpublishedsincetheStandardwaspurchased.Detailedin[e-mail],orwritetotheChiefExecutive,StandardsAustraliaLimited,GPOBox476,Sydney,NSW2001.FirstpublishedasAS1141.30—1983.Secondedition1996.AS1141.30—1996revisedandredesignated,inpart,asAS1141.30.2—2009.ThisStandardwasissuedindraftformforcommentasDR05459.COPYRIGHT©StandardsAustraliaAllrightsarereserved.Nopartofthisworkmaybereproducedorcopiedinanyformorbyanymeans,electronicormechanical,includingphotocopying,withoutthewrittenpermissionofthepublisher.PublishedbyStandardsAustraliaLimitedGPOBox476,Sydney,NSW2001,AustraliaISBN0733790259PrintedinAustraliaAccessedbyMONASHUNIVERSITYLIBRARYon14Mar2009Thispagehasbeenleftintentionallyblank.AccessedbyMONASHUNIVERSITYLIBRARYon14Mar2009