公开(公告)号：US20180188174A1

公开(公告)日：2018-07-05

申请号：US15739123

申请日：2016-06-22

申请人： TECHNISCHE UNIVERSITAET WIEN

发明人： Bernhard HOFKO ,  Markus HOSPODKA ,  Josef FUESSL ,  Lukas EBERHARDSTEINER ,  Hinrich GROTHE ,  Florian HANDLE ,  Daniel GROSSEGGER ,  Ronald BLAB

IPC分类号： G01N21/64 ,  G01N33/42

CPC分类号： G01N21/64 ,  G01N33/42 ,  G01N2021/6419 ,  G01N2201/061 ,  G01N2201/12

摘要： The invention relates to a method and to a device for determining a material property, in particular the aging state or the aging resistance, of a bitumen material, comprising the steps: applying a substantially monochromatic first excitation radiation of a first excitation wavelength to the bitumen material; measuring the intensity of a first fluorescence radiation, excited by the first excitation radiation, at a measurement wavelength; applying a substantially monochromatic second excitation radiation of a first excitation wavelength to the bitumen material; measuring the intensity of a second fluorescence radiation, excited by the second excitation radiation, at the measurement wavelength; determining a first key figure for the material property of the bitumen material from the ratio between the intensity of the second fluorescence radiation to the intensity of the first fluorescence radiation.