A Study on Aging Kinetics of Asphalt Based on Softening Point

Asphalt aging is a nonreversible first order reaction, and the extent of asphalt aging is usually expressed by the increase of its softening point. In this article, the first order aging kinetic model of asphalt has been put forward based on softening points of asphalt at different aging time, and t...

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Bibliographic Details
Published in:Petroleum science and technology 2003-01, Vol.21 (9-10), p.1575-1582
Main Authors: Zhao, Zhaohui, Xuan, Mingqin, Liu, Zheng, Cong, Yufeng, Wei, Yi, Liao, Kejian
Format: Article
Language:English
Subjects:
Applied sciences
Crude oil, natural gas and petroleum products
Energy
Exact sciences and technology
Fuels
Paving asphalt
Petroleum products, gas and fuels. Motor fuels, lubricants and asphalts
Softening point
The first order aging kinetic model
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Summary:Asphalt aging is a nonreversible first order reaction, and the extent of asphalt aging is usually expressed by the increase of its softening point. In this article, the first order aging kinetic model of asphalt has been put forward based on softening points of asphalt at different aging time, and the kinetic parameters have been obtained. The results showed that the aging of asphalt could be described with softening point and belonged to first order kinetics, which offered a available and convenient method for studying the asphalt aging behavior. The aging resistance of two paving asphalts were also compared by this model.
ISSN:1091-6466
1532-2459
DOI:10.1081/LFT-120023239