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EffectofMgOontheComposition,StructureandPropertiesofAlite-CalciumStrontiumSulphoaluminateCementEffectofMgOontheCompositi1

ReportsyllabusReportsyllabus2IntroductionCalciumstrontiumsulphoaluminatemineral(3-X)CaO·XSrO·3Al2O3·SrSO4

C1.5Sr2.5A3

PortlandcementAlite-calciumstrontiumsulphoaluminatecement(AScement)

LowercalcinationtemperatureHigherSO3contentThedisadvantageousinfluenceofMgOcanbereducedIntroductionCalciumstrontium3IntroductionIntroduction4ExperimentComposition/%Aluminium

ratioSilicon

ratioSaturationcoefficientoflimeC3SC2SC3AC4AFC2.75B1.25A3

59.2414.227.499.9991.52.50.92Table1MineralcompositionoftheclinkerThePortlandcementwiththeadditionof4%and5%MgOweresynthesizedforcomparisonContentsofMgO

1%，2%，3%，4%，5%，6%，7%ExperimentComposition/%Alumin5ResultsanddiscussionNo.w(MgO)/%w(f-CaO)/%Compressivestrength/MPaExpansionratio/%3d28dA000.4855.296.70.147A110.4162.299.80.138A220.3864.3103.60.171A330.4363.2101.20.240A440.4561.897.90.373A550.4660.196.00.428A660.5351.289.50.738A770.5943.973.71.373S440.7250.487.90.556S550.7849.688.30.692Table2EffectofMgOcontentonthecementperformances●Influence

ofMgOonthePropertiesofCementResultsanddiscussionNo.w(MgO6■C3S●C1.5Sr2.5

A3◆C2S▼C4AF▲C3AFig.1X-raydiffraction(XRD)patternsofclinkers●XRDanalysisofclinkers■C3S●C1.5Sr2.5A37●SEM-EDSanalysisofclinkers

Fig.2SEM–EDSofsilicatemineralsinclinkerA2(a)SEMofA2clinker(b)C3Satpoint1●SEM-EDSanalysisofclinkers8

(a)SEMofA2clinker(b)C1.5Sr2.5A3atpoint2

Fig.3SEM–EDSofC1.5Sr2.5A3inclinkerA2(a)SEMofA2clinker9(a)SEMofA7clinker(b)C1.5Sr2.5A3atpoint2

Fig.4SEM–EDSofC1.5Sr2.5A3

inclinkerA7(a)SEMofA7clinker(b)C1.510Petrography

analysisofclinkersA0A2S5A5Fig.5LightmicrographsofclinkersPetrographyanalysisofclinke11DistributionofMgOintheClinkersTable3

DistributionofMgOintheClinkersNo.w(MgO)/%Distributionw/%MgOincalciumsilicateMgOinglassphasef-MgOMgOinintermediatephaseA220.830.240.320.61A441.450.271.031.25A551.520.321.561.60A771.720.432.842.01S551.190.662.420.73DistributionofMgOintheCli12ConclusionsConclusions13ConclusionsConclusions14Theend,thankyouforyourattention!國際會議報(bào)告文本英文版15演講完畢，謝謝觀看！演講完畢，謝謝觀看！16EffectofMgOontheComposition,StructureandPropertiesofAlite-CalciumStrontiumSulphoaluminateCementEffectofMgOontheCompositi17

ReportsyllabusReportsyllabus18IntroductionCalciumstrontiumsulphoaluminatemineral(3-X)CaO·XSrO·3Al2O3·SrSO4

C1.5Sr2.5A3

PortlandcementAlite-calciumstrontiumsulphoaluminatecement(AScement)

LowercalcinationtemperatureHigherSO3contentThedisadvantageousinfluenceofMgOcanbereducedIntroductionCalciumstrontium19IntroductionIntroduction20ExperimentComposition/%Aluminium

ratioSilicon

ratioSaturationcoefficientoflimeC3SC2SC3AC4AFC2.75B1.25A3

59.2414.227.499.9991.52.50.92Table1MineralcompositionoftheclinkerThePortlandcementwiththeadditionof4%and5%MgOweresynthesizedforcomparisonContentsofMgO

1%，2%，3%，4%，5%，6%，7%ExperimentComposition/%Alumin21ResultsanddiscussionNo.w(MgO)/%w(f-CaO)/%Compressivestrength/MPaExpansionratio/%3d28dA000.4855.296.70.147A110.4162.299.80.138A220.3864.3103.60.171A330.4363.2101.20.240A440.4561.897.90.373A550.4660.196.00.428A660.5351.289.50.738A770.5943.973.71.373S440.7250.487.90.556S550.7849.688.30.692Table2EffectofMgOcontentonthecementperformances●Influence

ofMgOonthePropertiesofCementResultsanddiscussionNo.w(MgO22■C3S●C1.5Sr2.5

A3◆C2S▼C4AF▲C3AFig.1X-raydiffraction(XRD)patternsofclinkers●XRDanalysisofclinkers■C3S●C1.5Sr2.5A323●SEM-EDSanalysisofclinkers

Fig.2SEM–EDSofsilicatemineralsinclinkerA2(a)SEMofA2clinker(b)C3Satpoint1●SEM-EDSanalysisofclinkers24

(a)SEMofA2clinker(b)C1.5Sr2.5A3atpoint2

Fig.3SEM–EDSofC1.5Sr2.5A3inclinkerA2(a)SEMofA2clinker25(a)SEMofA7clinker(b)C1.5Sr2.5A3atpoint2

Fig.4SEM–EDSofC1.5Sr2.5A3

inclinkerA7(a)SEMofA7clinker(b)C1.526Petrography

analysisofclinkersA0A2S5A5Fig.5LightmicrographsofclinkersPetrographyanalysisofclinke27DistributionofMgOintheClinkersTable3

DistributionofMgOintheClinkersNo.w(MgO)/%Distributionw/%MgOincalciumsilicateMgOinglassphasef-MgOMgOinintermediatephaseA220.830.24

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