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Abstract
The molecular weight distribution of asphalts before and after the thin film oven test was analyzed by using a high-performance chromatographic instrument. The method using the difference of peak spreading obtained from GPC diagram of asphalts before and after the thin film oven test to evaluate the ability of asphalt anti-aging was recommended. This method can be applied to describe the changes of the molecular weight distribution of the aged asphalt quantatively. It can be used in routine analysis for selecting asphalt materials.
The molecular weight distribution of asphalts before and after the thin film oven test was analyzed by using a high-performance chromatographic instrument. The method using the difference of peak spreading obtained from GPC diagram of asphalts before and after the thin film oven test to evaluate the ability of asphalt anti-aging was recommended. This method can be applied to describe the changes of the molecular weight distribution of the aged asphalt quantatively. It can be used in routine analysis for selecting asphalt materials.
Date
0/1988
0/1988
Author(s)
Fan Yaohua; Chen Xiuli
Fan Yaohua; Chen Xiuli
Page(s)
322-341
322-341
Source
Society of Chemical Industry
Society of Chemical Industry
Keyword(s)
thin film oven test; molecular weight distribution; ashpalt; petroluem asphalt; antiaging properties
thin film oven test; molecular weight distribution; ashpalt; petroluem asphalt; antiaging properties