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1、LaboratoryofMaterialsandstructuresofCivilEngineering???http://www.lcpc.fr/fr/presentation/organigramme/div_lmsgc/TheUMRNavier-LMSGCbringstogethermechanicsandphysicists,modellersandexperimentersaroundthescienceofporous,heterogeneousandgranularcivilengineeringmaterials.Researchissuppo
2、rtedbymajortechnologicalequipment.TheMagneticResonanceImager(MRI),whichhasbeeninservicefor3yearsandismanagedbytheUMRNavier-LMSGC,makesitpossibletotrackthemovementsofliquidsorphasechangeswithinporousmaterialsaswellaslocaldistortionsofpastyorgranularmaterials.?Director:PhilippeCoussot
3、JointécoledesPonts–LCPCcentreUnitassociatedwiththeCNRSUMR113(CitéDescartes)Permanentstaff:47including13doctoralstudents?Micro-mechanicsandstructuralcalculationsTheaimofthisfirsttopicistodeveloptoolsforthemechanicalbehaviourofstructuresbyusingscalingmethodsandtheconstructionofbehavio
4、urallawsformulti-phasematerials.Thisapproach,atstucturalcalculationlevel,showsthemechanicallinkagesthatexistbetweenthecomponentelementsofporousorreinforcedmaterials.Troughthemulti-yearCASTORproject,researchersfromtheécoledesPontsandLCPCaretogetherdevelopinganumericaltoolforsizingrei
5、nforcedgeotechnicalstucturesbyinclusionsintheCESAR-LCPCsoftware.?ParcClubdelaHaute-Maison2,alléeKéplerCitéDescartes,77420Champs-sur-MarneTél.(33)140435441/Fax.(33)140435450and6-8,av.BlaisePascal,CitéDescartes,Champs-sur-Marne77455MarnelaValléecedex2Tel.(33)164153656Fax.(33)164153748
6、?CoupledtransportinporousmediaCivilengineeringmaterials(soils,concretes,wood,rocks)arestronglyinfluencedbythetransportofhumidity,ionsorcolloids,whichcanleadtochemicalreactionssuchasthealkalireactionorcorrosion.Theaimofthissecondtopicistounderstandandconductpredictivemodellingoftheph
7、ysicsofsuchphenomena,whichdeterminetheusageanddurabilityofsomematerials.Forexample,westudythedryingofporousmaterials(inremovingthesaltfromhistoricmonuments)cryodepollutionofsoils,dryingofsoilsbyelectro-osmosis,orthemechanicaleffectsofconcreteswellingcausedbychemicalreactions.??Reoph
8、ysicsofpastesandgra