Laboratory Evaluation of Sustainable PMA Binder Containing Styrene-Isoprene-Styrene (SIS) and Thermoplastic Polyurethane

Date

2020-12-02

Authors

Kim, Hyun Hwan
Mazumder, Mithil
Lee, Soon-Jae
Lee, Moon-Sup

Journal Title

Journal ISSN

Volume Title

Publisher

Multidisciplinary Digital Publishing Institute

Abstract

In this study, thermoplastic polyurethane (TPU) and styrene-isoprene-styrene (SIS) were utilized to enhance asphalt binder properties. Superpave asphalt binder tests and multiple stress creep recovery (MSCR) were conducted to evaluate the physical and rheological performance (viscosity, rutting, and cracking properties) of the asphalt binders before and after short-term aging and after the long-term aging process. The results showed that (i) TPU has a positive effect on workability, including the mixing and compaction processes, which was evident from the reduced binder viscosity; (ii) asphalt binders with TPU and SIS showed better rutting resistance compared to the SIS binders without TPU; (iii) the cracking resistance of asphalt binders was found to be improved significantly with the addition of TPU; and (iv) TPU has the potential to be considered as a sustainable polymer modifier for producing bearable asphalt binders by improving rutting and crack resistance without increasing the melting temperature of the asphalt binders

Description

Keywords

TPU, SIS, viscosity, rutting, cracking, Engineering Technology

Citation

Kim, H. H., Mazumder, M., Lee, S. J., & Lee, M. S. (2020). Laboratory evaluation of sustainable PMA binder containing styrene-isoprene-styrene (SIS) and thermoplastic polyurethane. Sustainability, 12(23), 10057.

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© 2020 The Authors.

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This work is licensed under a Creative Commons Attribution 4.0 International License.

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