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Research of Method for Improving Antifreeze-Thaw Performance Based on Asphalt Mixture Freeze-Thaw Damage Development Process
Joint Authors
Gao, Lin
Sun, Yazhen
Deng, Man
Ye, Youlin
Zhang, Huaizhi
Ma, Zuoxin
Source
Issue
Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-12, 12 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2020-08-27
Country of Publication
Egypt
No. of Pages
12
Main Subjects
Abstract EN
To improve the antifreeze-thaw performance of asphalt pavement in the seasonal freezing regions, the temperature and the time of freeze-thaw test were redesigned based on the climatic characteristics of the regions, and the splitting tensile strength tests were carried out to determine the low-temperature performance of the asphalt mixture under the influence of the gradation and the asphalt-aggregate ratio.
A mathematical model was built to investigate the freeze-thaw damage law.
According to the test results of splitting tensile strength of the asphalt mixture under freeze-thaw cycles, the probabilistic damage variable of the asphalt mixture was redefined and a physical probability model was built to analyse the freeze-thaw damage.
Based on the freeze-thaw damage development process and the mechanism of the asphalt mixture, the effective measures to improve the antifreeze-thaw performance were provided and demonstrated through the correlations among the damage parameters (the shape parameter α, the scale factor λ, and the gradient factor ν) and the freeze-thaw resistance of the asphalt mixture.
The test results showed that the splitting tensile strength decreased with the increase of the number of the freeze-thaw cycles.
With the same gradation, the splitting freeze-thaw damage degree of the asphalt mixture with 5.8% asphalt-aggregate ratio is about 6% less than others after the 18th freeze-thaw cycle.
The freeze-thaw resistance increases with the asphalt-aggregate ratio.
With the same asphalt-aggregate ratio, the splitting freeze-thaw damage degree of S-grade mixtures is about 11.8% higher than that of Z-grade mixtures.
S-grade mixtures have positive effects on the freeze-thaw resistance.
The results suggest new measures for further investigation on the design and maintenance of the asphalt mixture in the seasonal freezing regions.
American Psychological Association (APA)
Sun, Yazhen& Deng, Man& Ye, Youlin& Gao, Lin& Zhang, Huaizhi& Ma, Zuoxin. 2020. Research of Method for Improving Antifreeze-Thaw Performance Based on Asphalt Mixture Freeze-Thaw Damage Development Process. Advances in Civil Engineering،Vol. 2020, no. 2020, pp.1-12.
https://search.emarefa.net/detail/BIM-1125094
Modern Language Association (MLA)
Sun, Yazhen…[et al.]. Research of Method for Improving Antifreeze-Thaw Performance Based on Asphalt Mixture Freeze-Thaw Damage Development Process. Advances in Civil Engineering No. 2020 (2020), pp.1-12.
https://search.emarefa.net/detail/BIM-1125094
American Medical Association (AMA)
Sun, Yazhen& Deng, Man& Ye, Youlin& Gao, Lin& Zhang, Huaizhi& Ma, Zuoxin. Research of Method for Improving Antifreeze-Thaw Performance Based on Asphalt Mixture Freeze-Thaw Damage Development Process. Advances in Civil Engineering. 2020. Vol. 2020, no. 2020, pp.1-12.
https://search.emarefa.net/detail/BIM-1125094
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1125094