A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Fluorometric Characterization of Asphalts
In the research effort new techniques for the uniform measurement of fluorescence intensity and spectra were developed and applied to the characterization of thirteen raw asphalts. Analytical techniques and some of the factors which influence asphalt fluorescence were considered. With this small sample set, relationships were found between fluorescence intensity values and viscosity as measured in original and laboratory-aged asphalts. As viscosity increased, the fluorescence intensity descreased, a relationship thought to be due to the dependence of both these properties upon oxidation and/or molecular structuring. Fluorescence intensity also decreased significantly upon the mixing of aggregate materials with asphalt, the magnitude of the change being influenced more by the asphalt binder than the aggregate. (Copyright (c) 1993 National Academy of Sciences.)
Fluorometric Characterization of Asphalts
In the research effort new techniques for the uniform measurement of fluorescence intensity and spectra were developed and applied to the characterization of thirteen raw asphalts. Analytical techniques and some of the factors which influence asphalt fluorescence were considered. With this small sample set, relationships were found between fluorescence intensity values and viscosity as measured in original and laboratory-aged asphalts. As viscosity increased, the fluorescence intensity descreased, a relationship thought to be due to the dependence of both these properties upon oxidation and/or molecular structuring. Fluorescence intensity also decreased significantly upon the mixing of aggregate materials with asphalt, the magnitude of the change being influenced more by the asphalt binder than the aggregate. (Copyright (c) 1993 National Academy of Sciences.)
Fluorometric Characterization of Asphalts
G. Mitchell (author) / A. Davis (author)
1993
100 pages
Report
No indication
English
Construction Equipment, Materials, & Supplies , Highway Engineering , Nondestructive Testing , Transportation & Traffic Planning , Transportation , Bituminous concrete , Asphalt pavements , Deterioration , Pavement condition , Binders , Spectrum analysis , Aggregates , Viscosity , Oxidation , Curing , Road materials , Nondestructive tests , Mechanical properties , Highway maintenance , Fluorescence microphotometry
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