GD-0719AAutomaticasphaltWheelTrackTester(ResearchType)TheinstrumentisdesignedandmadeasperT0719“BituminousMixtureWheelTrackTest”intheIndustryStandardJTJ052SpecificationandTestMethodsofBitumenandBituminousMixtureforHighwayEngineering.Itisaresearchtype,anditcanbeusedforcollegesanduniversities,andscientificresearchinstitutestomakeresearchontheresistancetoruttingofbituminousmixtureathightemperature.Itcanalsobeusedformanufacturingcompaniesandc***tructioncompaniestodeterminetheresistancetoruttingofbituminousmixturesathightemperature.Maincharacteristics:1.Itcanbeconnectedtoanycomputerprocessingsystemusingnewlydevelopedmicroprocessorcontrollingtechniquesbyus.2.Itcanmakedeterminationfortwotestmoldsatthesametimewithwaterimmersionorwithoutwaterimmersion.Thec***tanttemperaturecaseequippedwiththeinstrumentcanpreheat7pieceoftestmold.Thiss***esalotoftime.3.ItadoptsPWMmodefortemperaturecontrol.Itcansimultaneouslycontrol:(1)Sampletemperature;(2)Watertemperatureinthewatercaseduringwaterimmersiontest;(3)Temperatureinthec***tanttemperaturecase4.Thec***tanttemperaturecaseisheatedusingoutercirculationmode.Theheatingsourceconnectswiththecasethroughpipestoformthermodynamicequilibrium,sothetemperatureisuniform.5.Itcandisplaytime-displacementcurveandtime-temperaturecurveatthesametime.Thisprovidesexperimentalevidenceonruttingcharacteristicsofbituminousmixtureforscientificresearchinstitutes.6.Itadoptsaabsolutetemperaturesensorfortemperaturecollection,sothereisnodriftduringlongtimetest(thissolvestheproblemofcommonthermocouplethattheeffectofdriftontestdataduringlongtimetest).7.ItadoptshighprecisionA/D(16digits)andD/A(16digits)moduletoensuregoodaccuracyandhighresolutionfordisplacementmeasurementandtemperaturecontrol.8.Equippedwithsoftware,itcanpresettesttimeandtesttemperatureasyourrequirements,anditcanrecalldeflectionvaluesofanytestmoldsandshowtheminrealtime.9.Itadoptswheelmovingmodeasitsmechanicalstructure.Thisisthesameasthatofforeignproducts.Thetestdataisclosetotherealcondition.10.Thethicknessoftestmoldsisintherangeof0~100mm.Theycanmeetruttingtestrequirementsofdifferentroadsurfaces.Maintechnicalparameters1.Applicablestanda***:JTJ052T0719-2000;2.Rollingspeedofroller:42&plu***n;1times/minute(oneway);3.Movingdistanceoftestvehicle:230&plu***n;10mm;4.Hardnessofrubberofrollingwheel:78&plu***n;2(InternationalStandardHardness);5.Pressurebetweenrollingwheelandtestmold:0.7&plu***n;0.05Mpa(60°C);6.Measurementrangeofdisplacement:0~30mm;7.Measurementaccuracyofdisplacement:lessthan&plu***n;0.005mm;8.Testduration:60~240min;9.Temperaturecontrollingrangeofc***tanttemperaturecase:roomtemperature~80°C;Accuracyis&plu***n;0.5°C;10.Powersupply:380V,50Hz;11.Sizeofmainunit:1510mm×1058mm×1460mm;12.Weight:300kg;13.Sizeoftestmold:300mm×300mm×50mm;Itcanbeusedtomakeruttingtestfortestsampleof30~150mminthickness.)