RILEM TC 279 WMR round robin study on waste polyethylene modified bituminous binders

advantages and challenges

Journal article (2022)

Authors

Marjan Tušar National Institute of Chemistry, Ljubljana, Slovenian National Building and Civil Engineering Institute
Muhammad Rafiq Kakar Swiss Federal Laboratories for Materials Science and Technology (Empa), Bern University of Applied Sciences
Lily D. Poulikakos Swiss Federal Laboratories for Materials Science and Technology (Empa)
Emiliano Pasquini Università degli Studi di Padova
Andrea Baliello Università degli Studi di Padova
Marco Pasetto Università degli Studi di Padova
Laurent Porot Kraton Chemical B.V.
Di Wang Technical University of Braunschweig
Davide Lo Presti Università degli Studi di Palermo
Aikaterini Varveri Pavement Engineering - CEG
Research Group
Pavement Engineering (CEG) (TU Delft)
Copyright: © 2022 Marjan Tušar, Muhammad Rafiq Kakar, Lily D. Poulikakos, Emiliano Pasquini, Andrea Baliello, Marco Pasetto, Laurent Porot, Di Wang, Davide Lo Presti, Aikaterini Varveri
DOI: https://doi.org/10.1080/14680629.2021.2017330
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Published Date

2022

Language

English

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Faculty

Civil Engineering & Geosciences

Department

Engineering Structures

Research Group

Pavement Engineering

Abstract

Inter-laboratory experiments were designed to evaluate the impact of plastic waste blended directly in bitumen and to assess the properties, using conventional and advanced bituminous binder testing. The blends targeted 5% of plastic waste in 95% bitumen, using two types of polyethylene (PE) primary (pellets) and secondary (shreds) waste. The experiments showed that the addition of PE waste to bitumen does not alter the chemistry of the bitumen, the blending is physical. The DSR results indicate a strong dependency on the testing temperature as at low temperatures the composite material bitumen and PE behave both elastically whereas, at higher temperatures, the bitumen becomes viscoelastic. The MSCR tests indicated that the neat binder is more sensitive to permanent deformation compared to the blends with PE. The fatigue performance using the Linear Amplitude Sweep test showed a better performance in terms of stress and fatigue life for the PE blends.

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