基于正交试验的SMA-13沥青玛蹄脂碎石混合料配制技术研究

基于正交试验的SMA-13沥青玛蹄脂碎石混合料配制技术研究Title: A Research on the Preparation Technology of SMA-13 Asphalt Masti

SMA-13 基于正交试验的沥青玛蹄脂碎石混合料配制技术 研究 Title:AResearchonthePreparationTechnologyofSMA-13AsphaltMastic CrushedStoneMixturebasedonOrthogonalExperiment Abstract: Withtheincreasingdemandforhigh-qualityroadpavement,SMA-13asphalt masticcrushedstonemixturehasbecomeanimportantmaterialforroad construction.Thisresearchaimstoinvestigatethepreparationtechnologyof SMA-13mixturetooptimizeitsperformance.Theorthogonalexperiment designmethodisadoptedtoidentifythekeyfactorsandtheirinteraction effectsontheperformanceofSMA-13mixture.Throughcomprehensive analysisandoptimization,theoptimalpreparationtechnologyisobtained, whichcanprovideguidancefortheproductionandapplicationofSMA-13 mixtureinroadconstruction. Keywords:SMA-13,asphaltmastic,crushedstone,mixture,orthogonal experiment,preparationtechnology 1.Introduction Thedevelopmentoftransportationinfrastructureplaysacrucialrolein promotingeconomicdevelopmentandimprovingpeople'squalityoflife. Asphaltmasticcrushedstonemixtureiswidelyusedinroadconstructiondue toitsexcellentproperties,suchashighdurability,fatigueresistance,and deformationresistance.Amongvarioustypesofasphaltmixtures,SMA-13has shownoutstandingperformance,makingitanattractivechoiceforroad constructionprojects.However,thepreparationtechnologyofSMA-13 mixturestillneedsfurtherinvestigationandoptimization. 2.ExperimentalDesign 2.1OrthogonalExperimentDesign Inthisresearch,theorthogonalexperimentdesignmethodisemployedto systematicallyinvestigatetheeffectsofdifferentfactorsontheperformance ofSMA-13mixture.Variousfactors,suchasasphaltcontent,mineral aggregatetype,mineralaggregategradation,andfillertype,areconsidered forthisstudy.Byarrangingthelevelsofeachfactoraccordingtoorthogonal arrays,asetofexperimentscanbeconductedtoexploretheinfluenceof individualfactorsandtheirinteractionsontheperformanceofSMA-13 mixture. 2.2TestMethods InordertoevaluatetheperformanceofSMA-13mixture,severaltestsare conducted,includingMarshallstability,ruttingresistance,tensilestrength ratio,andwaterstability.TheMarshallstabilitytestmeasurestheload-carrying