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Influence of Diatomite and Mineral Powder on Thermal Oxidative Ageing Properties of Asphalt
Joint Authors
Cheng, Yongchun
Guo, Qinglin
Li, Chao
Jiao, Yu-bo
Tao, Jing-lin
Source
Advances in Materials Science and Engineering
Issue
Vol. 2015, Issue 2015 (31 Dec. 2015), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2015-08-03
Country of Publication
Egypt
No. of Pages
10
Abstract EN
Ageing of asphalt affects the performances of asphalt pavement significantly.
Therefore, effects of diatomite and mineral powder on ageing properties of asphalt were investigated systematically in order to improve the antiageing property of mixture.
Thin film oven test (TFOT) was used to conduct the short term ageing in laboratory.
Softening points, penetrations, force ductility, low temperature creep properties, and viscosities of asphalt mastics were tested before and after TFOT, respectively.
Results indicated that percent retained penetration (PRP) increased with the increasing of fillers.
Increment of softening point (ΔT), ductility retention rate (DRR), deformation energy ageing index (JAI), and viscosity ageing index (VAI) of asphalt mastics nonlinearly decreased with the increasing of fillers.
Ageing of asphalt was reduced by diatomite and mineral powder.
And the antiageing effect of diatomite was better than that of mineral powder as a result of its porous structure.
It is suggested that the mineral powder could be reasonably replaced by diatomite in order to reduce thermal oxidative ageing of asphalt mixture.
The optimal content of diatomite 12.8% is also suggested for engineering.
American Psychological Association (APA)
Cheng, Yongchun& Tao, Jing-lin& Jiao, Yu-bo& Guo, Qinglin& Li, Chao. 2015. Influence of Diatomite and Mineral Powder on Thermal Oxidative Ageing Properties of Asphalt. Advances in Materials Science and Engineering،Vol. 2015, no. 2015, pp.1-10.
https://search.emarefa.net/detail/BIM-1053738
Modern Language Association (MLA)
Cheng, Yongchun…[et al.]. Influence of Diatomite and Mineral Powder on Thermal Oxidative Ageing Properties of Asphalt. Advances in Materials Science and Engineering No. 2015 (2015), pp.1-10.
https://search.emarefa.net/detail/BIM-1053738
American Medical Association (AMA)
Cheng, Yongchun& Tao, Jing-lin& Jiao, Yu-bo& Guo, Qinglin& Li, Chao. Influence of Diatomite and Mineral Powder on Thermal Oxidative Ageing Properties of Asphalt. Advances in Materials Science and Engineering. 2015. Vol. 2015, no. 2015, pp.1-10.
https://search.emarefa.net/detail/BIM-1053738
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1053738