OPC’s(SupplementaryCementitiousMaterials)OPC（补充胶凝材料）

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1、ReducingCO2byHalf,inConcrete!AnopportunityforourprofessionandChina;DoingMorewithLess鲍德文BoudewijnM.PiscaerUNIVERDE/SUSTCONEPVSusCoM2012,WUHANNEXTGENERATIONCONCRETEFactsandFigures(peryear)±9Billionm3concreteworldwide(5BillionM3inChina!)>5BillionTonCO2duetoconcreteofwhichOPC(Ord

2、inaryPortlandCement)ismorethenhalf.±2.7BillionTonPortlandclinkerproduced(inChina1.4)±1TClinker=1TCO2=1.6Trawmaterial(600kgtoozone)Withoutchanges,260%increaseby2050Whenenergyisrenewable,1/3ofCO2comesfromOPCWaterdemandofCementisincreasingduetonewgrinding“WaterCementRatio”isstil

3、lcommonbutoutdatedtoolNonclinkerbindersonbigscaleoperationalin10years?CarbonCaptureandabsorptionquestionableresp.limitedNEXTGENERATIONCONCRETEHolisticApproachTRANSPORTofrawmaterials+finishedproducts;ChangetorenewableEnergyPRODUCTIONofCement+Concrete;ChangetorenewableEnergy.Ev

4、enifheatingofclinkeris100%renewableenergy,calcinationoflimestoneremains=Chinalooses840MilliontonsofrawmaterialperyeartotheatmosphereOptimizematerialusebyDesignofstructureReduceclinkercontentperm3=PresentationIncludeHUMAN/EducationalaspectsinapproachNEXTGENERATIONCONCRETECaseS

5、torySustainablePrecast,2002180kg“nonreactive”G.C.C.stabilizer+180kgGGBSlag+180kgHighestQualityCemI52.5R(OPC)Sust.SelfCompactingConcrete190kgCO2/m3GooddemouldingstrengthNoise,frommusic!Skilledforces,LesserrorsHomogeneous=durableSmoothlightsurfaceSamecostasvibratedc.HigherC53/6

6、5strengthHighestgradeOPC(>€!)Formervibrationconcrete360kgCO2/m3NoisefromvibratingDustfromvibrationtablesUnschooledworkersHighmaintenanceNonhomogeneousRoughsurfaceC35/45strengthReduceClinkerContentperm3ReducePaste(Powder+Water+Admixture)contentReduceclinkercontentofPaste,by<12

7、5µParticleSizeEngineering,understandingthatPerformanceisfunctionof;REACTIVITY,PACKING,ADHESIONApplyWaterPOWDERRatiosinceDURABILITYis90%corrosionandrelatedtoPermeability,nottoReactivityDesignmixfortailormadestrengthdemandatspecifictimeCONSISTANCY;-Controlwaterdemandonincomingp

8、owdersplusaggregates-CUSUMQualitycontrolonoutgoingconcrete-NonDestru