Purpose:TheinstrumentisdesignedandmadeasperT0613“AsphaltBreakingPointTest(FraassMethods)intheIndustryStandardJTJ052SpecificationandTestMethodsofBitumenandBituminousMixtureforHighwayEngineering.ItissuitabletodetermineFraassBreakingPointofbituminousmaterials.Theinstrumentcanmakedeterminationfor3piecesofsamplesatthesametime,andcalculatethe***eragevalueofthreetestdata.TheinstrumentusescomputertocontrolcoolingrateandtheinstrumentisequippedwithaprintertoprintouttestdataandaRS232outputport.Technicalparameters1.Powersupply:AC220V&plu***n;10%,50Hz;2.Coolingmode:bywater;3.Coolingrate:1°C&plu***n;0.5°C/min;4.Temperaturemeasurementrange:-27°C~25°C;5.Temperaturemeasurementerror:&plu***n;0.5°C;6.Sizeofsteelsheet:41×20×0.15(mm);7.Samplequantity:itcanmakedeterminationfor3piecesofsamplesatthesametime;8.Ambienttemperature:roomtemperature~+30°C;9.Relativehumidity:≤85%;10.Totalpowerc***umption:notmorethan450W)