Study on Mechanical Behavior of Aging Asphalt Based on Composite Regeneration and Modification

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Abstract

Although the aging asphalt and its regeneration were researched by many researchers, the poor low-temperature performance of regenerating asphalt has still not been solved yet. In this project, the composite technology of regeneration and modification will be used to solve the problem mentioned above. Through the investigation and analysis on the composite mechanism of regeneration and modification for aging asphalt, the objective of the project attempts to explore a method for the synchronized recovery of high- A nd low-temperature performance of aging asphalt. The research results show that the single regenerating technology cannot fully recover the low-temperature performance of aging asphalt, and the composite technology of regeneration and modification can make the performance of aging asphalt recovery well. The indexes of aging asphalt after composite regeneration and modification have been recovered, which are better than the indexes of 90# asphalt (25°C penetration is 80-100/0.1 mm) and close with the indexes of styrene-butadiene-styrene (SBS) modified asphalt. The project has demonstrated that the composite technology of regeneration and modification can make the high- A nd low-temperature performance of aging asphalt recovery well. The research results can obtain better economic and social benefits.

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Zhang, H., Wang, Y., Liu, Z., & Sun, Q. (2020). Study on Mechanical Behavior of Aging Asphalt Based on Composite Regeneration and Modification. Advances in Materials Science and Engineering, 2020. https://doi.org/10.1155/2020/1325048

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