简介：ThephysicalandchemicalpropertiesandsoundnessofBaosteelPowerPlant’sdrydesulphurizedflyashweresystematicallyinvestigatedandcomparedwiththoseofthesimilarbyproductsproducedbysomeotherdomesticpowerplants.Thefeasibilityofthesebyproductsusedasaconstructionmaterialwasalsoanalyzed.TheresultsshowthatBaosteel’sdrydesulphurizedflyashisakindofashwithhighcalciumandhighsulfurcontents,whichhasthecharacteristicsofvolcanicashactivity.Itcontainssulfateandsulfite,andiseasytocausesulfateactivation.Ithashigheractivitycomparedwithcommonflyash.Buthighercalciumsulfiteandfree-CaOcontentsinashwillbringaboutsoundnessconcernstousers.Therefore,qualitytestsandvolumecontrolwillbenecessarywhenflyashisusedasaconstructionmaterial.
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