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Viscosity Reduction Mechanism and Rheological Performance Analysis of Warm Mix Rubber Modified Asphalt
A surface-active agent was added to the project in order to investigate the process of viscosity reduction in rubber-modified asphalt by the warmed mixing agent and its effects on rheological characteristics of asphalt. Different periods for preservation for warm-mix asphalt treated with rubber powder were created. Using a Brookfield viscometer, the viscosity change of the warm mix asphalt was measured, and bar chromatography were utilized to study the process of viscosity reduction. Using the DSR frequency and temperature scanning tests, the rheological characteristics of the warm mix asphalt were assessed. According to the research, the warm mix is primarily made up of volatile tiny molecules that successfully lower the viscosity of the asphalt. However, this also softens the asphalt and negatively impacts its resistance to low-temperature cracking, creep recovery, and high-temperature rutting. Asphalt aging is caused by volatile components releasing from the heated mix as storage time approaches. The warm mix asphalt showed high-temperature mechanical characteristics that were comparable to the original asphalt after 48 hours of storage.
Viscosity Reduction Mechanism and Rheological Performance Analysis of Warm Mix Rubber Modified Asphalt
A surface-active agent was added to the project in order to investigate the process of viscosity reduction in rubber-modified asphalt by the warmed mixing agent and its effects on rheological characteristics of asphalt. Different periods for preservation for warm-mix asphalt treated with rubber powder were created. Using a Brookfield viscometer, the viscosity change of the warm mix asphalt was measured, and bar chromatography were utilized to study the process of viscosity reduction. Using the DSR frequency and temperature scanning tests, the rheological characteristics of the warm mix asphalt were assessed. According to the research, the warm mix is primarily made up of volatile tiny molecules that successfully lower the viscosity of the asphalt. However, this also softens the asphalt and negatively impacts its resistance to low-temperature cracking, creep recovery, and high-temperature rutting. Asphalt aging is caused by volatile components releasing from the heated mix as storage time approaches. The warm mix asphalt showed high-temperature mechanical characteristics that were comparable to the original asphalt after 48 hours of storage.
Viscosity Reduction Mechanism and Rheological Performance Analysis of Warm Mix Rubber Modified Asphalt
Advances in Engineering res
Zhang, Zhiqiang (editor) / Zeng, Chaofeng (editor) / Raman, Sudharshan N. (editor) / Vafaei, Mohammadreza (editor) / Tian, Yi (author) / Hong, Wei (author) / Yan, Luchun (author) / Liu, Zijian (author)
International Conference on Structural Seismic and Civil Engineering Research ; 2024 ; Qingdao, China
2024-10-26
9 pages
Article/Chapter (Book)
Electronic Resource
English
| British Library Online Contents | 2014