简介：Theeffectofparticlesizedistributionofaluminahasbeeninvestigatedforsilica-freetabularaluminalowcementcastables(LCC).Threedifferentcombinationsofaluminahavebeenincludedinthematrixformulationofthecastables.Allthethreecombinationsarecomposedofabimodalreactivealuminaandafinegroundmonomodalreactivealumina.ThefirstA1andsecondA2combinationsarerespectivelycomposedofbimodalandmonomodalaluminasfromAlteo,withadifferentfine/coarseparticlesratioforthebimodalalumina.ThetwoAlteocombinationshavebeencomparedwithathirdcombinationCcomposedofabimodalcommerciallyavailablegradeandamonomodalcommerciallyavailablegrade.OptimizationofparticlesizepackinghasbeenperformedforthethreedifferentformulationsusingtheDingerandFunkmodel.Withthisoptimization,thetwoformulationsbasedonAlteomaterial(PFR,PBRandPFR40)achievethesamelevelofperformanceinapplicativetests(flowability,coldphysicalproperties,mechanicalresistance,crystallinephases,thermalshocksandcorrosion)asreferencesolutionsonthemarket.