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CaseStudy2StabilisedSteelFurnaceSlagSFSUsedinLightlyBoundPavementApplicationAnunsealedhardstandforheavyequipmentstoragewasconstructedatKooragangIsland.ThisprojectrequiredSFS6mmminusdustblendedwithabindertoproduceaUCSstrengthat7daysacceleratedusingRMSTestMethodT116ofbetween1.0and1.5MPa.TheSFSdustwasblendedwithabinderinacomputer-controlledpugmillthendeliveredtothesiteviatruckanddogcongurations.Materialwasplacedandcompactedusingagraderandsmoothdrumrollerwithapproximately600tonnesplacedperdayofproduction.Thismaterialistoremainunsealedduringservicelifeandthereforerequiredasmoothimpermeablenishtomeetthetightgradetoleranceforcontrolofsurfacestormwaterruno.LIFECYCLEANALYSISLCAThebenetsofusingthestabilisedSFSdustforthisapplicationwerenumerousasfollowsThestabilisedSFSdustprovidedaneectivesolutiontootherinvestigatedpavementdesignsbeingatraditionalconcretepavementorRMSspeciedheavilyboundpavementorusingnaturalquarriedroadbasematerialswithanincreasedpavementthickness.Thequarriedmaterialswouldalsorequireaspraysealtoprovidethedesireddurabilityandstormwaterrun-oproperties.ThestabilisedSFSdustwasmorethantforpurposeprovidingtheclientwithAnimpervioussurfaceMinimumdustingforanunsealedpavement5QuickReferenceGuide32014SteelFurnaceSlagFigure4-Close-upofSFSroadbase.Figure5-6mmSFSminusdustusedatKooragangIsland.HighbearingandtensilestrengthReducedpavementthicknessAlongwithbenettingtheenvironmentthroughrecoveryandrecyclingofanindustrywastematerialreducingthecarbonfootprintforthisprojectandprotectingnaturalresourcesandtheenvironmentfromfurtherdegradationandThehardstandhasbeeninserviceforover12monthswiththeclientbeingverysatisedwiththeperformancetodate.CONCLUSIONIntermsofitscompetitiveadvantagesinrelationtoothermaterialsironandsteelslagISSproductshavebeenprovenforuseinvarioustypesofapplicationsincludingcementandconcretemanufacturecivilworksroadconstructionrehabilitationandstabilisationofexistingroadscarparksandpavements.EconomicallyISSproductsarecomparativetoothertraditionalresourcesbutshouldbeassessedonacasebycasebasisgiventheotherperformanceandenvironmentaladvantages.TheAustralasianironsteelSlagAssociationcontinuestoadvocateforthecurrentandpotentialusesofslagproductsaswellasimprovingregulatoryunderstandingofthebenetsarisingfromslaguse.AUSTRALASIANIRONSTEELSLAGASSOCIATIONSuite2Level1336KeiraStreetWollongongNSW2500AustraliaPOBox1194WollongongNSW2500AustraliaTelephone61242580160Fax61242580169Emailinfoasa-inc.org.au