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Thermalanalysisiscomposedofaheatdifferencecomparisonofscanningcalorimetryapparatusin100
,Equippedwithmodemsettemperatureandliquidnitrogencoolingsystem,Ultrapurehelium(99.999%)isusedtoeliminatecells(50ml/minute)standardaluminumsealingplateusedinallexperiments,Withinthescopeofthequalityofthe7-10mgsample。Asphaltexperimentdeviceareasfollows:Rapidlyheatedto150℃,Rapidlyheatedto150℃,Slowlycooledtominus100℃(atarateof10℃/min),Atminus100℃isotherm,10minutestoprepareforthesamplemodulateddifferentialscanningcalorimetry(MDSC)。MDSCParametersoftheoperation:Thelinearheatingrateof2,4℃/min,Amplitudein1to2℃,andthetimeduringtheperiodof40-60sisconsideredtobethebestasphaltresearchtime.Standarddeviationshowninscanningcalorimetry(DSC)run:4℃/minofbitumen,10℃/minofSBSandorganicbentonite.DynamicvibrationmeasurementbyusingATAinthestraincontroloperationARESA-33Arheometerisothermalconditions,atlowtemperatures,inthegeometryofconeplate(50mmand25mmdiameterrespectively,Conradconeradiationin0.01and0.04)andthetorsionbar(withthelinearsizeof25.5*12*2.65)。Atlowtemperaturesrangefrom0.01to1hzfrequency,frequencyatmediumandhightemperaturesrangefrom0.05to5hz,whichiswhydifferentgeometryisusingarangeofdifferenttemperature,andchangedasoftconsistency,thesampleoftheviscoelasticsolid(whentheboardandtheboardcanbeusedinafragileglass)materials(whenthetorsionbarisnecessary)theadvantagesofthefulltestrelatedtothisproblemdiscussedinthepreviouspaper[39].
Throughthepreparationofpouringasphaltsample,andcorrespondingsizeofrubbermoldisstoredintherefrigerator.Thisprocedureensuresthatthemorphogeneticmixedphaseisintheprocessofpreservation,Eventhosewhoprovetobequiteunstableresearchinstitutions,initialstrainscanningtestsistoensureinallexperimentalconditions,theresultsremainwithinthelinearrange。Testtemperaturechangesfromto40℃to90℃,usingtime-temperaturesuperpositionprincipleinordertobuildthecurveofdynamicmaterialfunctions(40,41)
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