Comparison of Asphalt Ultraviolet Radiation Aging with Other Aging Types by Infrared Adsorption Spectrum
This study introduces the theory of asphalt aging with infrared adsorption spectrum. Qualitative and quantificational comparisons are carried out between Karamay asphalt ultraviolet radiation aging, after which asphalt turns from sol-type to gel-type and other aging types. The variance ratio of absorbance A at 1700 cm1 in infrared spectrum chart is consistent with the tendency of asphalts three general indexes, including penetration, ductility and softening point. The oxidation speed of ultraviolet radiation aging is 1.80~6.23 times that of thermal aging. In addition,the process of photo-oxidation, the order of carbonyl content in different asphalt samples, the influence of ultraviolet radiation on long term aging of asphalt and other useful information has been gained for better and further researches in this field.
Asphalt Ultraviolet radiation aging Thermal aging Infrared adsorption spectrum analysis
Huai Rui Wu Jin Ting Wu Fen Ye
Department of Civil Engineering. Shanghai University, Shanghai 200072, China Key Laboratory of Road and Traffic Engineering of the Ministry of Education,Tongji University, Shang
国际会议
上海
英文
943-947
2011-10-21（万方平台首次上网日期，不代表论文的发表时间）