Development of a Matrix Analysis Methodology for Characterization of Short-Term Aging in Asphalt Binders Modified by Synthetic Wax

Ali Jamshidi, Greg White, Wim Van den bergh, Seyed Reza Omranian and Meor Othman Hamzah
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Ali Jamshidi: School of Science, Technology, and Engineering, University of the Sunshine Coast, Sunshine Coast 4556, Australia
Greg White: School of Science, Technology, and Engineering, University of the Sunshine Coast, Sunshine Coast 4556, Australia
Wim Van den bergh: Energy and Materials in Infrastructure and Buildings, Faculty of Applied Engineering, University of Antwerp, Groenenborgerlaan 171, 2020 Antwerp, Belgium
Seyed Reza Omranian: Energy and Materials in Infrastructure and Buildings, Faculty of Applied Engineering, University of Antwerp, Groenenborgerlaan 171, 2020 Antwerp, Belgium
Meor Othman Hamzah: Sustainable Asphalt Research Group (SARG), School of Civil and Environment Engineering, Universiti Sains Malaysia, Nibong Tebal 14300, Pulau Pinang, Malaysia

Sustainability, 2021, vol. 13, issue 11, 1-14

Abstract: In this study, an innovative methodology is proposed to characterize the short-term aging of asphalt binders using the matrix analysis method. The rotational viscosity and complex shear modulus of asphalt binders were chosen as target rheological properties for the analysis of aging. A set of square matrices was developed based on test temperatures and the synthetic additive wax content. Transformational short-term aging matrices were obtained that characterize the trend of the aging process as a function of binder type, temperature sweep, and additive percentage. The results of the matrix analysis show that the trend of short-term aging depends on the binder performance grade and the rheological characteristic chosen for the analysis of aging. In addition, transformational aging matrices can provide detailed information about the range of the aging rate and the trend in aging for each binder type. Furthermore, the components of the transformational matrices clearly show the sensitivity of the binders to aging. In conclusion, the matrix analysis of aging can be used to compare the effects of short-term aging of different asphalt binders.

Keywords: warm mix additive; viscosity; viscoelastic properties; transformational aging matrix; complex shear modulus (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2021
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