Study on Performance and Microstructure of SBS Modified Asphalt during Shearing Process

Ai Hong Kang; Wu Hong Zhang

doi:10.4028/www.scientific.net/AMM.178-181.1442

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 178-181Study on Performance and Microstructure of SBS...

Study on Performance and Microstructure of SBS Modified Asphalt during Shearing Process

Abstract:

To explore the relationships between the performances and microstructures of modified asphalt, in the tests, one kind of basic asphalt、two kinds of modifiers and four kinds of modifiers content were selected to prepare modified asphalt. The SBS modified asphalt performances such as softening point, viscosity, Rutting Factor G*/sinδ and the corresponding microstructures with different shearing time were analyzed. The results show that different modifiers have different modification effects on the asphalt，but the change trends of performances and microstructures with the modifier content and shearing time are basically the same. It is also found that there is a good relationship between microstructure and macro performance, the average area of the modifier is closely related to the softening point, total area (or area percentage) and the shape factor of the modifier are suitable to reflect the mechanical behavior of modified asphalts.

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Periodical:

Applied Mechanics and Materials (Volumes 178-181)

Pages:

1442-1447

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.178-181.1442

Citation:

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Online since:

May 2012

Authors:

Ai Hong Kang, Wu Hong Zhang

Keywords:

Fluorescence Microscopy, Morphostructure, Performance, SBS Modified Asphalt, Shearing

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