Evaluation of an antioxidant to improve the aging resistance of SBS modified asphalt binder based on chemical mechanical analysis
Source abstract
Abstract
The use of antioxidants in asphalt binder is significant in prolonging the service life of asphalt pavements. In order to improve the aging resistance of asphalt binder, an antioxidant was mixed into SBS modified asphalt binder in this study. The effects of the antioxidant on the properties and aging resistance of SBS modified asphalt binder were characterised based on rheological parameters, chemical composition and morphology. The results showed that the aging resistance index quantitatively evaluated the aging resistance of different asphalt binders. The average aging resistance index of asphalt binder with 3% antioxidant based on different properties index was about 3.5, which meant it can prolong the aging life by approximately 3.5 times. The control of carbonyl and sulfoxide formation by antioxidant was the key driver to inhibit the macroscopic property degradation of asphalt binder. However, the antioxidant did not effectively inhibit the degradation of SBS modifiers during aging.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Asphalt Pavement Performance Evaluation · Infrastructure Maintenance and Monitoring · Polymer Nanocomposites and Properties
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Beijing University of Technology
Beijing Municipal Road and Bridge Building Materials Group Co., Ltd
University of Science and Technology Beijing
Gansu Provincial Highway Development Group Co., Ltd
Scientific Observation and Research Base of Transport Industry of Long Term Performance of Highway Infra-structure in Northwest Cold and Arid Regions
Funding
National Natural Science Foundation of China · National Key Research and Development Program of China · Research project of Gansu Provincial Department of Transportation · Gansu Provincial Science and Technology Plan
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