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TheroadtogoinggreeninMelbournebeganin2009whenHarscoMetalstookresponsibilityforutilisationoftheslagco-productfromOnesteelLavertonandenteredthesphereofsustainableroads.In2010inconjunctionwiththeASASustainabilityVictoriaandOneSteelweinvitedstakeholdersinthevaluechainVicRoadsEPAVictoriaendmarketuserslocalcouncilsandotherinterestedpartiestoanalyseEAFslagfromtheperspectivesofenergyusecarbonfootprintandpotentialenduseapplicationsfortheproduct.ThisforumwasdesignedtoopenupdiscussionregardingattitudesandunderstandingofslagproductstothendevelopastrategyforeectiveutilisationinVictoria.UltimatelytheendgoalwastomoveEAFslagsintothepreferredmarketofasphaltproductswhereitssuperiorskidresistancecouldbeutilised.TofacilitatethisalengthytestingandconsultationprocesswithVicRoadsfollowedinordertoprovethecapabilityandpotentialofEAFslagmaterialsandtheassociatedbenetstoMelbourne.Duetothelimitedavailabilityoftheproductversustheoverallmarketsalesweredirectedtowardsnichehighperformanceproducts.Inmid-2011HarscoMetalsandFultonHoganbeganworkinginpartnershiptotransferthelab-basedtestingintorealapplications.FultonHoganstechnicalexpertiseandproductdevelopmentabilitiescombinedwithHarscosglobalexperienceinslagutilisationculminatedintherstroadsbeinglaidduring2011andearly2012.Theseroadsweretestedincomparisontotraditionalmaterialswithimpressiveresults.OneoftheapplicationsincludedtheEmerald-MonbulkRoadseeimagewhereasectionofslagasphaltwaslaidinthenorthbounddirectionwithgraniteasphaltinthesouthbounddirection.AVicRoadsSCRIMmachinewasusedtoperformadirectcomparisonbetweentheskidresistancepropertiesofthetwomaterials.Resultsshowedthattheaverageskidresistancewas6.5higherfortheslagasphaltwhencomparedtogranite.TheRoadtoGoingGreeninMelbournewww.asa-inc.org.auconnectionsMarch1305In2013anindependentreportfromMonashUniversityusedtheresultsasthefocusofastudyintothebenecialimpactofskidresistanceonpedestrianinjuriesoverthelifeoftheroad.ThisreportrecognisedthatEAFslagasphaltexhibitssuperiorskidresistancepropertiesandthatthesepropertiescanbemaintainedforlongperiodsasthematerialregeneratesnewfrictionalsurfaces.Itwasfoundthatoveraveyearperiodtheslagasphaltwouldloselessthan1ofthatskidresistancecomparedtothegranitewhichcouldexpecttolosealmost20.Theseresultswerethenusedtoperformacomparisonbetweenavehicleonanurbanroaddeceleratingfrom60kmphstoppingongraniteandslag.Basedontheskidresistancedatafromthetimethatbrakesarefullyappliedthecarstoppingonslagtravels17m.Comparativelythecarstoppingongranitetravelsalmost20m.Forthegraniteroadthisequatestoacollisionspeedon15kmphatthetimethecarstoppingonslagwouldbemotionless.Thisistheimpactspeedatwhichnearlyhalfofseriousinjurycrashesinvolvingpedestriansoccur.ItwasfurtherestimatedthatifthematerialwereappliedtoallVictorianroads20pedestriandeathsand240seriousinjuriescouldbepreventedoveratenyearperiod.TodatetheproducthasbeenlaidatmultiplesitesaroundMelbourneincludingintersectionsroundaboutshighspeedcornersoncountryroadsandschoolcrossings.FultonHoganhavedevelopedaspecialityproductcalledGriphaltseeimageusingtheEAFmaterialwhichincludesover70recycledcontent.Severalothersiteshavebeenidentiedfortheproductin2013givingMelbournesroadsthechancetogogreensustainablywhilstpotentiallyimprovingthesafetyofitsusers.Forfurtherinformationpleasevisitwww.harsco.comAboveMaterialbeinglaidinGeelongforGreaterCityofGeelong.AboveEmeraldRoadMonbulk.BackgroundMateriallaidinSouthMelbourne.