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玄武岩纤维改性沥青混合料路用性能试验研究(英文).docx

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玄武岩纤维改性沥青混合料路用性能试验研究(英文) ResearchonPerformanceTestofBasaltFiberModifiedAsphaltMixturesforRoadways Abstract Asphaltmixturesarewidelyusedintheconstructionofroads.However,thelackofsufficientstrengthanddurabilityoftraditionalasphaltmixtureshasresultedinincreasingdemandsforincorporatingnewmaterialstoenhancetheperformanceofasphaltmixtures.Inthisstudy,basaltfiberwasusedasamodifier,anditseffectontheroadperformanceofasphaltmixtureswasinvestigated.Theresultsoftheperformancetestsshowedthattheadditionofbasaltfiberimprovedthestabilityandmechanicalpropertiesofasphaltmixtures.Theoptimalcontentofthebasaltfiberwasfoundtobe0.3%,whichresultedinthebestperformance.Thestudyprovidesinsightsintotheuseofbasaltfiberasamodifierinasphaltmixturesforconstructingdurableandreliableroadways. Keywords:Basaltfiber,asphaltmixtures,roadperformance,stability,mechanicalproperties. Introduction Asphaltmixturesarecommonlyusedintheconstructionofroadsduetotheireasyavailability,lowcost,andeaseofconstruction.However,thelackofsufficientstrength,poordurability,andsusceptibilitytodamagebyharshweatherconditionshaveresultedinthedevelopmentofnewandmodifiedasphaltmixtures.Theadditionofmodifiersisaneffectiveapproachtoimprovetheperformanceofasphaltmixtures.Amongthevariousmodifiers,basaltfiberhasbeenproventobeapromisingnewadditionforimprovingthestabilityandmechanicalpropertiesofasphaltmixtures. Basaltfiber,atypeofinorganicfiber,isobtainedfromthevolcanicrocksofbasalticorigin.Duetoitshighstrengthandthermalstability,basaltfiberhasbeenusedinvariousapplications,includingconstruction,automotive,andaerospaceindustries.Theuseofbasaltfiberasamodifierinasphaltmixturesprovidesanopportunitytoincreasethestrengthanddurabilityofasphaltroads,reducemaintenancecosts,andenhancethesafetyofroadusers. Inthisstudy,theeffectofbasaltfiberontheperformanceofasphaltmixtureswasinvestigated.Theobjectiveoftheresearchwastodeterminetheoptimalcontentofbasaltfiberinasphaltmixturestoachievethebestperformance. ExperimentalProcedure Materials Thematerialsus