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11COALASHEDITORIALTEAMChiex19ExecutiveOx19fcerCraigHeidrichEditorAlisonFitzgeraldDesignPrint101DesignPtyLtdContributorsAlisonFitzgeraldHBMGroupRonMcLarenMcLarenandAssociatesCraigHeidrichJustinMossCoalAshMattersisabi-annualpublicationCirculation1500CCPs-avaluableresourcewww.adaa.asn.auEditorialAnabstractofthepastyearCoalAshMattersispublishedbyADAATheAshDevelopmentAssociationofAustraliaPh0242281389Fax0242281777Emailinfoadaa.asn.auWebsitewww.adaa.asn.auISSUENOVEMBER2011NOVEMBERTHISISSUE-NOV111EditorialAnabstractofthepastyear1FlyAshAggregates3UpdateCCPHandbookSecondEdition3InnovativeSolutionforTheHunterExpresswayProject4TechnicalLiteratureReviewUpdatesUnderway5Newsbriefs-WOCA2011-RunandDone6AustraliaTakesupLeadinWWCCPN6CIAConcrete2011Conference6SubscriptionItx19sbeenabigyearfortheAshDevelopmentAssociationofAustraliaADAA.ConferencesheldwereWorldofCoalAshconferenceConcreteInstituteofAustraliax19sBiennialConcrete2011conferenceandparticipationintheNSWRTAPavements2011whichallprovideddelegatesx19withnewviewsfrominsightfulkeynotespeakers.KeydevelopmentsfortheassociationincludedtherevisionoftheCoalCombustionProductsHandbookthedevelopmentofnewADAAdatasheetsandtheredesignoftheADAAwebsitewhichisavailableforyourperusalathttpwww.adaa.asn.au.ThisyearhasalsoprovensuccessfulinregardstotheuseofJyashinnewroadsprojects.TheHunterExpresswayinvolvesaJyashbasedgroutthatisinjectedintoboreholestoensurethelargevoidsleftfrompastminingoperationsareIlled.ThisprojectiscertainlybeneIcialfortheADAAintheircontinuousquesttomarkettheuseofJyash.Theseprojectsandmanymorehavemadeforaninterestingandbusyyearfortheassociation.IwouldliketowishallSeasonsGreetingsandasafeandhappynewyear.AggregatesforthegeneralconstructionindustryasaprincipalingredientforconcreteforIltrationmediaandforagriculturecanallbereadilymadeusingJyash.WhilemostmanufacturetodatehasbeencarriedoutoverseasAustralianJyashesarewellsuitedasarawfeedfortheaggregatemanufacturingprocesses.ManufacturingprocessesFlyashcanbereadilyformedintonormalcommercialsizedaggregatescommonly20mmdiameterbyrollingonapelletizingdish.ThisprocessiscommoninotherindustrieswhereInesneedtobeagglomerated.Thespeedandangleofthepelletizingdishcanbeadjustedtodeterminepelletsize.Othermethodsi.e.extrusioncanbeconsideredbutthesphericalshapedparticlesfromrollingareusefulintheconstructionindustry.Theresultingx1cgreenpelletx1dhaslittlestrengthandmustbehandledwithcare.TherearethreeprincipalsystemstoprocessthegreenJyashpelletintoasolidaggregatefusionorsinteringmixingwithcementorlimebasedproductsandchemicalorgeopolymersandissummarisedasfollows.Fusionorsintering.ThisprocessrequiresanoptimumlossonignitionLOIorcarboncontentoftheJyashof6.IftheLOIisloweradjustmentcanbemadebyaddingcoalwasherywasteproductsfrequentlyfoundasawastenuisancearoundpowerstationsites.Withthissystemthegreenpelletsareloadedontoasinterstrandasabedtypicallyof300mmdepth.Thepelletspassunderanignitionhoodforinitialheating.ThepelletsthencontinuealongthestrandwiththeignitionprocesscontinuingFlyAshAggregatesNewandimprovedADAAwebsiteFurnaceBottomAshFlyash
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11COALASHEDITORIALTEAMChiex19ExecutiveOx19fcerCraigHeidrichEditorAlisonFitzgeraldDesignPrint101DesignPtyLtdContributorsAlisonFitzgeraldHBMGroupRonMcLarenMcLarenandAssociatesCraigHeidrichJustinMossCoalAshMattersisabi-annualpublicationCirculation1500CCPs-avaluableresourcewww.adaa.asn.auEditorialAnabstractofthepastyearCoalAshMattersispublishedbyADAATheAshDevelopmentAssociationofAustraliaPh0242281389Fax0242281777Emailinfoadaa.asn.auWebsitewww.adaa.asn.auISSUENOVEMBER2011NOVEMBERTHISISSUE-NOV111EditorialAnabstractofthepastyear1FlyAshAggregates3UpdateCCPHandbookSecondEdition3InnovativeSolutionforTheHunterExpresswayProject4TechnicalLiteratureReviewUpdatesUnderway5Newsbriefs-WOCA2011-RunandDone6AustraliaTakesupLeadinWWCCPN6CIAConcrete2011Conference6SubscriptionItx19sbeenabigyearfortheAshDevelopmentAssociationofAustraliaADAA.ConferencesheldwereWorldofCoalAshconferenceConcreteInstituteofAustraliax19sBiennialConcrete2011conferenceandparticipationintheNSWRTAPavements2011whichallprovideddelegatesx19withnewviewsfrominsightfulkeynotespeakers.KeydevelopmentsfortheassociationincludedtherevisionoftheCoalCombustionProductsHandbookthedevelopmentofnewADAAdatasheetsandtheredesignoftheADAAwebsitewhichisavailableforyourperusalathttpwww.adaa.asn.au.ThisyearhasalsoprovensuccessfulinregardstotheuseofJyashinnewroadsprojects.TheHunterExpresswayinvolvesaJyashbasedgroutthatisinjectedintoboreholestoensurethelargevoidsleftfrompastminingoperationsareIlled.ThisprojectiscertainlybeneIcialfortheADAAintheircontinuousquesttomarkettheuseofJyash.Theseprojectsandmanymorehavemadeforaninterestingandbusyyearfortheassociation.IwouldliketowishallSeasonsGreetingsandasafeandhappynewyear.AggregatesforthegeneralconstructionindustryasaprincipalingredientforconcreteforIltrationmediaandforagriculturecanallbereadilymadeusingJyash.WhilemostmanufacturetodatehasbeencarriedoutoverseasAustralianJyashesarewellsuitedasarawfeedfortheaggregatemanufacturingprocesses.ManufacturingprocessesFlyashcanbereadilyformedintonormalcommercialsizedaggregatescommonly20mmdiameterbyrollingonapelletizingdish.ThisprocessiscommoninotherindustrieswhereInesneedtobeagglomerated.Thespeedandangleofthepelletizingdishcanbeadjustedtodeterminepelletsize.Othermethodsi.e.extrusioncanbeconsideredbutthesphericalshapedparticlesfromrollingareusefulintheconstructionindustry.Theresultingx1cgreenpelletx1dhaslittlestrengthandmustbehandledwithcare.TherearethreeprincipalsystemstoprocessthegreenJyashpelletintoasolidaggregatefusionorsinteringmixingwithcementorlimebasedproductsandchemicalorgeopolymersandissummarisedasfollows.Fusionorsintering.ThisprocessrequiresanoptimumlossonignitionLOIorcarboncontentoftheJyashof6.IftheLOIisloweradjustmentcanbemadebyaddingcoalwasherywasteproductsfrequentlyfoundasawastenuisancearoundpowerstationsites.Withthissystemthegreenpelletsareloadedontoasinterstrandasabedtypicallyof300mmdepth.Thepelletspassunderanignitionhoodforinitialheating.ThepelletsthencontinuealongthestrandwiththeignitionprocesscontinuingFlyAshAggregatesNewandimprovedADAAwebsiteFurnaceBottomAshFlyash