CPATT NEWS - Home | University of Waterloo NEWS Issue 16 - Summer 2016 ... The Great East Japan...
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Issue 16 - Summer 2016 CPATT NEWS Contents: • Feature Faculty • Student Feature • Lab Focus • Individual Highlights • Awards and Recognition and Upcoming Events • Norman McLeod Chair • Contact Us Message from the Director Welcome to our Summer 2016 addition of CPATTNews! We hope all your projects have been successful to date and we wish you all continued success as the construction season progresses. In this newsletter we highlight some of the various projects underway at CPATT including work with MEPDG, Climate Change on pavements, and Reclaimed Asphalt Pavement. Also, we highlight some events and special features from the past few months which include a seminar by Curtis Berthelot from PSI Technologies Inc., Susan Tighe’s University of New Brunswick lecture, graduate student awards and new students starting with CPATT/Norman W. McLeod Chair in Sustainable Pavement Engineering. CPATT was very happy to be featured in the July issue of the Constas Magazine. The article was on smart carriageways and self-healing materials and features CPATT and Hassan Baaj. The article can be found here. Please join our CPATTfacebook group by clicking the icon Should you have any questions related to our activities please do not hesitate to contact us. Sincerely, Susan L. Tighe, PhD., P.Eng Norman W. McLeod Professor in Sustainable Pavement Engineering Director of CPATT
Transcript of CPATT NEWS - Home | University of Waterloo NEWS Issue 16 - Summer 2016 ... The Great East Japan...
Issue 16 - Summer 2016CPATT NEWS
Contents:• FeatureFaculty• StudentFeature• LabFocus• Individual
Highlights• Awardsand
RecognitionandUpcomingEvents
• NormanMcLeodChair
• ContactUs
Message from the Director
WelcometoourSummer2016additionofCPATTNews!
Wehopeallyourprojectshavebeensuccessfultodateandwewishyouallcontinuedsuccessastheconstructionseasonprogresses.
In thisnewsletterwehighlightsomeof thevariousprojectsunderwayatCPATTincludingworkwithMEPDG,ClimateChangeonpavements,andReclaimedAsphaltPavement.Also,we highlight some events and special features from the past fewmonthswhich include aseminarbyCurtisBerthelot fromPSITechnologies Inc.,SusanTighe’sUniversityofNewBrunswicklecture,graduatestudentawardsandnewstudentsstartingwithCPATT/NormanW.McLeodChairinSustainablePavementEngineering.
CPATTwasveryhappytobefeaturedintheJulyissueoftheConstasMagazine.Thearticlewasonsmartcarriagewaysandself-healingmaterialsandfeaturesCPATTandHassanBaaj.Thearticlecanbefoundhere.
PleasejoinourCPATTfacebookgroupbyclickingtheicon
Shouldyouhaveanyquestionsrelatedtoouractivitiespleasedonothesitatetocontactus.
Sincerely,
SusanL.Tighe,PhD.,P.EngNormanW.McLeodProfessorinSustainablePavementEngineeringDirectorofCPATT
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FacultyFeature-Dr.Wei-ChauXie
Dr. Wei-Chau Xie, PhD., PEngDr.Wei-ChauXiereceivedhisPhDinAppliedMechanicsin1990fromtheDepartmentofCivilEngineeringattheUniversityofWaterloo.Aftergraduation,heworkedatAtomicEnergyofCanadaLimited(CANDU)asaStressAnalystandDesignEngineer.HereturnedtotheUniversityofWaterlooin1992andisaProfessorintheDepartmentofCivilandEnvironmentalEngineeringand theDepartmentofAppliedMathematics.Dr.Xiehaspublishedover100journalpapersondynamicstabilityofstructure,reliabilityandsafetyanalysisofengineeringsystems,andseismicanalysisanddesignofengineeringstructures.
In2006,Dr.Xie’smonographDynamic Stability of StructureswaspublishedbytheCambridgeUniversityPress.Thisbookrepresents theculminationof twentyyearsof researchon thissubject.This is thefirstbook thatgivesasystematicpresentationof themodern theoryofLyapunovexponentsandmomentsLyapunovexponentsandtheirapplicationsinthestudyofstochasticdynamicstability.
Earthquakesareoneofthemostdestructivenaturaldisasters.TheGreatEastJapanEarthquakeandthetsunami,occurredonMarch11,2011,causedaseriesofequipmentfailures,nuclearmeltdowns,andreleasesofradioactivematerialsattheFukushimaDaiichiNuclearPowerPlant.Since severaldestructiveearthquakeshaveoccurred in recentdecades,nuclearenergy industriesworld-wideare launchinganunprecedentedandextensive re-evaluationof seismichazardsand risk tonuclearpowerplants(NPPs).Furthermore,nuclearenergyregulatorsandutilitiesaretakingacriticallookatexistingmethodsofestimatingseismicriskofNPPs.Anumberofdeficiencieshavebeenrecognizedintheexistingmethodsofseismicriskanalysis.
Dr.Xieandhisresearchteamaredevelopingamodernprobabilisticframeworkofanalysis:fromseismicdemandanalysis,seismicfragilityanalysisofStructures,Systems,andComponents(SSCs),toseismicriskquantificationofnuclearpowerplants.Thefocusofresearchisondevelopingefficientandaccuratemodellingandanalysistechniques,designmethods,andguidelinesforstructuralchangestoensurethatSSCsinNPPsareseismicqualifiedinacost-effectiveway.ThemethodologiesdevelopedprovidemoderntoolstoassessexistingSSCsinrefurbishmentofexistingNPPsandtodesignnewSSCsinnewNPPstocomplywithstandardsforseismicsafety.Dr.Xieandhisco-authorsarewritingaresearchmonograph/textbookonSeismic Risk Analysis of Nuclear Power Plants,tobepublishedbytheCambridgeUniversityPress.
Dr.Xiedevotesgreateffortsinteaching,advisingandmentoringstudents.HewasawardedtheTeachingExcellenceAwardin2001andtheDistinguishedTeacherAwardin2007,thehighestformalrecognitiongivenbytheUniversityofWaterlooforasuperiorrecordofcontinuedexcellenceinteaching.HisundergraduatetextbookDifferential Equations for EngineerswaspublishedbytheCambridgeUniversityPressin2010.Thebookhasbeenadoptedinmanyuniversitiesworldwide.
Outsideoftheclassroom,Dr.Xie’sinterestsareasvastandvariedashisprofessionalexperienceshavebeen.Heisacasualbodybuilder,ahobbyhedevelopedsixteenyearsagowithoneofhisstudentswhowasonceastunt-doubleforJackyChan.Bestknownforhisperfectcircles,hehasmanycreativeendeavours,anantithesistohisworkinmechanicsandmathematics.Dr.Xieenjoyspainting,ascanbeseenbythelandscapehepaintedwhichhangsinhisoffice.Torelax,Dr.Xielikestowatchpoliceproceduralswithabowlofhisfamous28-beansoup.
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StudentFeature-GulfamJannat
Meet Gulfam JannatGulfamJannatisaDoctorofPhilosophycandidateintheCivilandEnvironmentalEngineeringdepartmentattheUniversityofWaterloo.ShereceivedherB.Sc(CivilEngineering)andMAScfrom Bangladesh University of Engineering and Technology(BUET).Her research interest ispavementdistresspredictionmodels and deterioration models, performance based costeffective pavement maintenance schedule, application ofMechanistic-EmpiricalPavementDesignGuide(MEPDG)intopavementmanagementsystems.
Gulfamhasmorethan8yearsengineeringworkexperienceinthefieldofpavementengineeringandtransportationinfrastructuremanagement. She worked in the Asian Development Bank(ADB), where she was involved in managing a number oftransportationinfrastructureprojects.PriortojoiningtheADB,
shealsoworked in theWorldBankasahighwayengineer.ShestartedherPhDunder thesupervisionofProfessorSusanTighein2013.
Developing Cost-Effective Pavement Maintenance and Rehabilitation Schedules: Application of MEPDG Based Distress Models and New Key Performance Index (KPI)TheMinistryofTransportationOntario(MTO)partiallyfundedthisresearchprojectthroughtheHighwayInfrastructureInnovationsFundingProgram(HIIFP),conductedbyCPATTat theUniversityofWaterloo.TheobjectiveoftheMTOprojectistodevelopengineeringcriteriaandstandardsforthekeyperformanceindicators(KPIs)usedinpavementmanagementsystems.
Theoverallobjectiveoftheresearchistoadevelopacost-effectivepavementmaintenanceandrehabilitation(M&R)schedulebyincorporating(a)Mechanistic-empiricalapproachintooverallconditionindex,and(b)estimationofKPImodelsbyconsideringthefactorsaffectingpavementperformance.Thefindingsof theresearchisexpectedtoincorporatetheMEPDGapproachinanintegratedwayintopavementperformanceasKPIandpavementM&Rschedules.Itisexpectedthatwiththerealisticandprecisepredictionofthedistressesandoverallconditionofpavement,developmentoftheM&Rstrategywillbepracticalandcost-effective.
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StudentFeature-DonghuiLu
Meet Donghui LuDonghui Lu is a PhD student in the department of Civil andEnvironmentalEngineeringattheUniversityofWaterloo,underthesupervisionofDr.SusanTigheandDr.Wei-ChauXie.DonghuiwasborninJilin,China.ShereceivedherB.Sc.andPhDdegreein2009and2014,respectivelyfromChinaAgriculturalUniversity,Beijing,China. In 2013 she joined the University of Saskatchewan as anexchangestudentforoneyear.ShehasresearchexperiencesinLifeCycleAssessmentstudies,BiomassFuelDensification,andForageMechanizationSystems.Donghuihasalwayshadacuriousmindandstrongdesiretolearn.SheisveryinterestedinsustainablepavementengineeringandsobeganhersecondPhDwithDrs.TigheandXieintheWinterof2016.
Risk of Climate Change on Pavement Performance and Adaptation Strategies using Big Data
Pavement deterioration is a dynamic processinfluenced by changing environmental conditions,traffic,constructionandmaintenancecharacteristics.Itisestimatedthatby2050,theaveragetemperaturewill increase 2 to 3 degree C in southern Ontario,whichmeansmoreextremeweatherandfloodingwilloccur in the future and the effect alongwith trafficloadcouldmakethepavementdegradationquicker.
Flooded Pavement
Climatechangewouldimpacthowroadsareplanned,designed, constructed, operated and maintained.Consideringclimatechange relatedhazardssuchasfloodoccurrenceandrapidweather,changeiscrucialforpromotingpavementperformancepredictionandpavementmanagement.This research proposalwassubmitted to the MTO under the HIIFP program.Recently, the research in progress is “performancebased fragility analysis of pavement consideringfloodhazard”.Floodingeventsoccurmorefrequentlyunderthechangingclimate,quantifyingtheeffectoffloodingon thepavementdeterioration trendbeforeand after, and the vulnerability of pavement couldpotentiallypromotepavementmanagementdecisionmaking and reduce the pavement flood risk in thefuture.
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StudentFeature-DonghuiLuCont’d
Flood Flow Modeling at Grand River around Waterloo
Floodplain and Road Map
Example of Fragility Curve of Pave-ment with the occurrence of flood
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LabWorkFocus
Improving Durability of Asphalt Mixes Produced with Reclaimed Asphalt Pavement (RAP) by Enhancing Binder Blending
Reclaimed Asphalt Pavement (RAP) has beenfavoured over virgin materials in the light of theunstable cost of virgin asphalt binders, shortage ofqualityaggregates,andcompellingneedtopreservetheenvironmentandnaturalresources.
Themainobjectivesofthisresearchare:toexaminethekinematicsofblendingofagedandvirginbindersby considering the time-temperature effect duringmixing and silo storage, and assess the thermo-mechanical behaviour of Hot MixAsphalt (HMA)containingRAPatdifferentblendingstates.
MillerGroupandSteedandEvansarethesuppliersofthemixturesfromtheirDratch,Drum,andBatchasphaltplants.HMAwillbeproducedbythesupplierswithRAPusingMarshall™mixdesignprocedures:HL3andHL8.HMAmixturewithdifferentpercentagesofRAPrangingfrom15%to40%willbeconsideredinthisstudy.Forcomparisonpurposes,controlmixtureswithoutanyRAPwillalsobeproduced.Sampleswillbecollectedrightafterproductionandatseveraltimeintervalsofsilo-storage(i.e.1,2,4,6,and24hours).To understand the blending phenomena and itseffectontheperformanceofthepavement,amulti-scale investigation is proposed.The EnvironmentalScanning Electron Microscope (ESEM) has beenvalidatedasa toolfor theobservationof thebindermicrostructure.
ESEM sample preparation
Blendingzone,virgin,andoxidizedbindercouldbeclearlydifferentiatedbyESEMimagesasshownintheFigurebelow.
ESEM Images of 58-28 binder (left), blending zone (middle), oxidized binder (right)
The performance of HMA containing RAPwill beexamined using dynamic modulus testing, thermalstress restrained specimen testing, rutting testing,and flexural beam fatigue testing. The collectedexperimental evidence will help the scientificcommunitytobetterunderstandthecomplexblendingphenomenon.
Moreover,theproposedprojectwillunveilcorrelationsbetween time-temperature effects and mixtureperformance.Consequently,itwilldeliverasynthesisdocumentthatprovidespracticalrecommendationstotheprofessionalsoftheCanadianasphaltindustryfora better use ofRAP inmore economic, sustainableandenvironmentallyfriendlyasphaltmixes.
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Highlights,AwardsandRecognition
AwardsandRecognition2016/2017 Ontario Graduate Scholarship - Dan Pickel-Awardedforexcellenceinthegraduateprogram
2016/2017 President’s Graduate Scholarship - Dan Pickel-Awardedtograduatestudentswhoholdmajorfederallyandprovinciallyfundedcompetition-basedscholarships
UpcomingEventsSeptember19-22,2016-SWIFTWorld’sPremierAirfieldOperationsConference-Minneapolis-St.Paul
September25-28,2016-TransportationAssociationofCanadaConferenceandExhibition-Toronto,ON
November13-16,2016-CanadianTechnicalAsphaltAssociation-Banff,AB
SusanTigheGuestLecturesRecently, Susan Tighe was invited to WesternUniversity and the University of New BrunswickTransportation Group Seminars as a guest lecturer.Her lectures were on resilient pavement for thesustainablefuture.
A key aspect to determining if a pavement designcanbeeffectivelyused inCanada is that itmustberesistant to harsh environmental and traffic loads.Currently,publicagenciesarealso investigating thefeasibilityofincorporatingsustainabilityandclimatechangeimpactsintotransportationassetmanagement.The potential benefits are diverse and of strategic
importanceastheyencompassimprovementstovirginmaterialusage,alternativematerialusage,pavementin-servicemonitoringandmanagement,noise,airquality,waterqualityandenergyusage.
The lecture provided a framework for formally evaluating new materials and designs into pavementengineering.Anevaluationof theconceptofa solar roadand theadvancedapplicationofSEMandCTscanning tools for evaluating and predicting performance of asphalt materials for usage on Canadianpavementswaspresented.EngineeringtoolssuchasFiniteElementformoresustainableandclimatefactorsintoassetmanagementprogrammingatthenetworklevelworkwasalsopresented.
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NormanW.McLeodChairUpdateCurtisBerthelotSeminar
OnMay27,2016,CPATTandtheNormanW.McLeodChairhostedaseminarwithDr.CurtisBerthelotastheguestspeaker.Dr.Berthelot’spresentationreviewedtheapplicationofappliedmechanics.Theapplicationofappliedengineeringmechanicshasgrownsignificantlyoverthepastdecadewiththedevelopmentof improvedmaterialscharacterizationmethodsaswellas advanced 3Dnumericalmodeling techniques.These capabilities nowenable engineers to provide their clients with more optimized designsolutionsthatresultincost-effectivelifecycleinvestmentininfrastructure.ThepresentationshowedhowPSITechnologieshasturnedtheapplicationof engineeringmechanics into a successful growing business venture inroadandminingengineering.
Dr. Berthelot is the president, owner, and chief technical officer ofPSI Technologies and provides overall technical leadership, as well asoperationsmanagementfor thecompany.Asaprofessionalengineer,Dr.Berthelothasover25yearsofexperienceinresearch,design,construction,
andprojectmanagementrelatedtoroadwayconstruction,roadrecycling,materialstabilization,transportationinfrastructuremanagement, intelligent transportation systems, and the trucking industry.He served as anassistantprofessorintheDepartmentofCivilandGeologicalEngineeringattheUniversityofSaskatchewanfrom1998to2009andatenuredprofessorfrom2009to2014.
Dr.Berthelotspecializesinmechanisticmaterialanalysisandhasdedicatedhiscareertodevelopingpragmaticmechanisticbasedmaterialstestingproceduresandequipmentininelasticmaterialsincludingasphaltconcrete,asphalt cement, aggregate and soils, soil cements and other additives, and saltcrete backfill systems.Dr.Berthelot’sextensiveknowledgeofmechanistic-basedmaterialsscienceandnon-destructivestructuralassetmanagementhasmadehimapioneerinthisareaofexpertise.
A leader in innovation,Dr. Berthelot piloted theway for road recycling and roadmaterials stabilizationacross theprovinceofSaskatchewan.Dr.Berthelot’sfirsthandknowledgeofSaskatchewanmaterials andclimaticconditionshasledtohisexpertiseinpavementstructureperformanceandrecycledmaterialsforroadconstructionandcivilengineeringuses.
Dr.Berthelot’spresentationcanbefoundhere
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NormanW.McLeodChairUpdateNewStudents
Meet Eskedil MeleseEskediljoinedCPATTinJanuary2016asaPhDcandidateunderthesupervisionofProfessorsTigheandBaaj.HereceivedhisBachelorof Science degree inCivil Engineering in 2005 fromArbaMinchUniversity (Ethiopia) and Master of Science degree in Road andTransportation Engineering in 2014 fromAddisAbabaUniversity(Ethiopia).EskedilstartedhiscareerasaGraduateAssistantatArbaMinch University and then worked for ten years as a Pavement/Materials Engineer. His current research focuses on the use ofHydraulicRoadBindersinFullDepthReclamationofgravelroadsandflexiblepavementsattheendoftheirservicelife.
TheCanadianroadnetworkconsistsofmorethanonemillionkilometersofpavedandunpavedroads,whichistheworld’sseventhbiggestroadnetwork.Amongthese,atleast800,000kmarelow-volumeroads(LVRs).Fortheseroads,maintenance,rehabilitation,andreconstructionwillberequiredearlierinthedesignlife.Oneofthekeychallengesofpavementengineerswillbethelong-termperformanceoftheLVRsusingacost-effectivesolution.ThemainresearchobjectiveofEskedil’sPhDworkistofindacost-effectivebutinnovativesolutionforLVRsbyaddressinglong-termperformanceundertheCanadianenvironment.HisworkwillfocusonFullDepthReclamation(FDR)usingHydraulicRoadBinders(HRBs)whichisatechniquethatallowsusingexistingmaterialsmakingthistechniqueamoreeconomic,sustainableandenvironmentallyfriendlysolution.
Meet Andy ZhongAndyZhong joinedCPATT inSeptember 2015 as aMASc candidate underthesupervisionofProf.Tighe.HeobtainedhisBachelordegreein1991andhisMaster’sdegreein1997fromChang’anUniversity,inHighwayandUrbanRoadEngineering.HehasbeenservingasthedeputychiefengineeratFHCC(CCCC First Highway Consultants Co.). During his work for FHCC, hisworkincludedengineeringfeasibilitystudies,designandconsultingworkforpavementandhighwayprojectsbothinChinaandothercountries(Chad,DPR,Korea,Burma).
Andy’s research focuses on the local calibration of theMEPDG predictionmodelsusingfieldmeasurements.Greateffortshavebeeninvestedincalibrating
theMEPDGforitsimplementationinpavementdesigninOntario.Severalprojectshavebeencarriedoutforthelocalcalibrationoverthepastfewyears.However,duetotheinherentchallengesofthework,thecurrentlocalcalibrationstudyinOntariohasachievedonlylimitedsuccess.Theproposedresearchaimstoenhancethecurrentlocalcalibrationresults byusingmore accuratefieldmeasurements and forensic investigations.Andy’s research aims to refine andvalidatetheMEPDGdistressandperformancemodelsonrigidpavementsrecordedinpavementmanagementsystemsinOntario.Theresearchwillnotonlyhelp thedesignpracticeusingMEPDGinOntariobutalso themanagementbyincorporatingthepredictioncapacityofMEPDGintotheempiricaldegradationmodelingmoduleofthecurrentpavementmanagementsystem.
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NormanW.McLeodChairBoardMembers
Norman W. McLeod Advisory BoardSusanTighe(NormanW.McLeodProfessor),UniversityofWaterlooHassanBaaj(NormanW.McLeodAssociateProfessor),UniversityofWaterlooAmirHalim(BoardChair),StantecConsultingLimitedBruceArmstrong,CanadianAsphaltIndustriesInc.LarryWilson,CapitalPavingInc.BarkKanters,ConcreteOntario/ReadyMixedConcreteAssociationofOntarioJohnPontarollo,CRHCanadaMohammedAhmed,DBAEngineeringLtd.MichaelMacKay/JessicaHernandez-EnGlobeLudomirUzarowski-GolderAssociatesLtd.JohnCarrickJr./TonyKucharek,McAsphaltIndustriesLimitedBlairMcArthur,MillerPavingLimitedDinoBagnariol/BeccaLane,MinistryofTransportationOntarioJamesSmith,OntarioGoodRoadsAssociationVinceAurilio/SandyBrown,OntarioHotMixProducersAssociationTedArscott/DaveSnow,Roto-MillInc.JohnEmery,ShilohCanConstructLtd.MalcolmMatheson/JimKarageorgos,SteedandEvansLimited
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ContactUs
UniversityofWaterloo200UniversityAvenueW.Waterloo,ONN2L3G1www.civil.uwaterloo.ca/CPATT/
Numbers and Email:
Dr.SusanTighe,[email protected]
Dr.HassanBaaj,[email protected]
LauraAnderton-Office519-888-4567ext.32289laura.anderton@uwaterloo.ca
CPATT-Laboratory519-888-4567ext.37731
CPATT Board Members
SusanTighe(Director)UniversityofWaterlooHassanBaaj(AssociateDirector)UniversityofWaterlooRicoFung(Chair)CementAssociationofCanadaTonyKucharek,McAsphaltIndustriesLtd.SandyBrown,OntarioHotMixProducersAssociationBeccaLane,MinistryofTransportationOntarioMattKaran,FormerStantecConsultingLtd.AmirHalim,StantecConsultingLtd.GaryMacDonald,RegionalMunicipalityofWaterlooMurrayRitchie,TheMillerGroupLtd.
