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再生集料混凝土的疲劳性能评价.pdf

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JournalofCleanerProduction65(2014)397e405 ContentslistsavailableatScienceDirect JournalofCleanerProduction journalhomepage:www.elsevier.com/locate/jclepro Evaluationofthefatiguebehaviorofrecycledaggregateconcrete CarlosThomas*,IsraelSosa,JesúsSetién,JuanA.Polanco,AnaI.Cimentada Dept.ofScienceandEngineeringofGroundandMaterials,UniversityofCantabria,SchoolofCivilEngineeringofSantander,Avda.LosCastross/n,Santander 39005,Spain articleinfoabstract Articlehistory:Inthisresearch,recycledaggregateconcretesproducedwithpartialandtotalcoarseaggregate Received22April2013replacementandcontrolconcreteswithdifferentincreasingwater/cementratioshavebeencasttostudy Receivedinrevisedformthematerial’sbehaviorinresponsetorepeatedcompressiveloadsusingtheLocatimethod.Theresults 17September2013 showthatthemethodologycanbeusedtofixthelimitintervalwherethefatiguelimitisfound.In Accepted21September2013 particular,forthesamewater/cementratio,therecycledaggregateconcretepresentsahigherlossof Availableonline1October2013 stiffnessatthesametestconditions.Furthermore,theuseofrecycledaggregateimpliesareductionin theabilitytoresistfatiguecycles.Thesedifferencesareincreasedforlowwater/cementratios,asinthis Keywords: Wastemanagementcasethemainfactoristhelowerstrengthcapacityoftheaggregate. Ó Mechanicalproperties2013ElsevierLtd.Allrightsreserved. Fatigue Cycles 1.IntroductionCastroanddeBrito,2013).Also,sanitarywareindustrywasteas coarseaggregatehasbeenstudiedshowingagoodfreezeethaw Inrecentyears,agreatdealofresearchworkhasbeencarriedbehavior(Medinaetal.,2013)butareductiononthegasperme- outtofindalternativewaystoreduceconstructionanddemolitionabilityisobserved(Medinaetal.,2012). wastes,31%ofallwasteproducedintheEuropeanUnionItisgenerallyagreedthatthereisalossinthephysicaland (Rodriguesetal.,2013),bytheuseofrecycledaggregate(RA)inthemechanicalpropertiesbutthefatiguebehaviorhasnotbeen productionofconcrete.Variousauthorshavestudiedtheuseoftheextensivelyanalyzed.Thereviewoftheliteraturesuggeststhatt