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Wellithasbeenquitearidesinceenteringtheconcreteindustry36yearsago.OnethingisforsureithasalwaysbeeninterestingnotonlyfortheresearchanddevelopmentRDprojectsIhavebeeninvolvedinbutalsobecauseofthepeopleIhavemetalongtheway.Myinitiationintoconcretewasin1977whenIwasemployedasananalystattheReadymixCentralResearchLaboratorylocatedatNorthRydeinSydney.PreviouslyIhadworkedasaChemistfor3yearsbutIwantedtousemygeologytrainingandIhopedthatconcretewouldprovidethatopportunity.TheanalysisIperformedactuallyinvolvedmorechemistrythangeologybutIdidmeetsomegreatworkmatesandalsointeractedwithsomeofthemostknowledgeablepeopleintheindustryAlekSamarinandBobMunn.TheanalysisofcementandconcretewasinterestingbutnotchallengingsowithinafewyearsItransferredtothenewlyformedRelcretedivisionofMonierwhereIworkedwithBarryButlerandlaterJohnAshbyastheirResearchChemist.ThisiswhereIdiscoveredmypassionforRDandIstarteddevelopmentonmanyoftheproductsthatRelcretesuppliedbeingconcreteadmixturesyashbagmixgroutsandroadblends.ItwasaroundthistimethatconcretecancerwasahottopicsoIdevelopedarangeofnon-chlorideacceleratingadmixtureswhichweresoldastheAcNseries.Ialsodevelopedanewversionof40Cnon-shrinkgroutandarangeofroadblendswhichwereknownthroughouttheindustryastheRelcreteTripleBlends.SinceRelcretewasamajorsupplierofyashIinvestigatedmeansofimprovingitsperformanceandfoundthatthiscouldbeachievedbygrindingtheashtoasuitablesizerange.Thisledtothemechano-chemicalactivationofyashwhichwasaprojectperformedinassociationwiththeUniversityofWesternAustraliaandinvolvedgrindingtheashinanattritormillalongwithsuitablechemicalactivators.AftermanybatchtrialsattheValesPointFlyAshPlanttheprocesswaspatentedandacommercialplantsetupatBayswatertoproduceaveryreactiveashknownasSolidFlow.In1995ItransferredtotheTechnologySectionofRoclaPipewhereIcontinueddoingdevelopmentworkonconcreteproductsalongsideGeoffWestChrisBusckandTerryGourley.ItwasaroundthistimethatIstartedresearchongeopolymerconcretewhichhadjuststartedtoattractsomeinterestasanalternativebuildingmaterial.Geopolymerconcretehasmanysimilaritiestoconventionalconcretebutitisthedifferencesthatattractmostattention.ItisconsiderablymoreacidresistantthanOPCconcretewhichgivesitanadvantageinacidicenvironmentssuchasacidsulphatesoilsandsewerpipelines.Theproblemisthatthepolymerisationreactionhastobecontrolledandthiswasnallyachievedaftermanylabandplanttrials.AformulationandassociatedprocesswerepatentedformakinggeopolymerpipesbutsurprisinglytherstcommercialproductionofageopolymerproductbyRoclawasburialcrypts.Inthiscasegeopolymerconcretewaschosenforitslowcarbonfootprintduetotheabsenceofcement.Over2000tonnesoftheconcretewasproducedtomake945gravesiteswhichwereinstalledatWoronoraCemeteryinSydney.CurrentlyIamstillworkingatRocladoingresearchongeopolymerconcreteandalsoconcretemixoptimisationbasedonrheologicaldatainputs.CareerSummary1974BScgeologymajorfromtheUniversityofNSW1977-1978AnalystforReadymixConcreteLtd.-CentralResearchLaboratoryatNorthRyde1978-1985ResearchChemistforMonierRelcreteatVillawood1985-1995LaboratoryManagerforRoclaRelcreteatVillawood1995-2013SeniorDevelopmentScientistforRoclaPipeandQuarryProductsatGuildfordGregJohnsonThereviewoftheCoalCombustionProductsHandbookisexpectedtoconcludeinDecember2013.Sincetheproposalforthisprojectauthorsandcontributorshavebeenworkingtowardsthedesignandcompletionofdraftsforeachchapter.Toreiteratetheoriginalaimsoftheupdatethepurposeofthisprojectwastoupdateexistingandnewinformationwithresearchforapplicationinmarketdevelopmentsandthedistillationoftrends.ThisnewresearchalsoincorporateslegislativechangesintheformofexemptionstoincorporatethechangingfaceofCCPapplications.Atthisstagethemajorityofchaptershavebeencompletedandcirculatedformemberreview.FutureprogressrequiresRevisionandconrmationofdatatomeetcurrentstandardsFinalsign-offoncontentProongandpublicationCoalCombustionHandbookReviewUpdateTheADAAwouldliketothanktheauthorscontributorsandmembersfortheirhardworkthroughoutthislong-termproject.Bycontinuallyupdatingourtechnicalinformationwecanensurebothqualityandrelevancetostakeholdersandthegeneralpublicalike.WHEREARETHEYNOWADAADECEMBER1303