Recycling of SBS Asphalt Mixture with Polymer Network Reconstructive Rejuvenators

Master thesis (2023)

Authors

Bowen Li Civil Engineering & Geosciences

Contributors

X. Liu Pavement Engineering - CEG (supervisor 1)
P. Lin Pavement Engineering - CEG (supervisor 1)
S. Erkens Pavement Engineering - CEG (supervisor 2)
E. Schlangen Materials and Environment - CEG (supervisor 2)
Eyassu Hagos Latexfalt B.V. (supervisor 2)
Faculty
Civil Engineering & Geosciences
Copyright: © 2023 BOWEN LI
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Published Date

03-11-2023

Language

English

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Faculty

Civil Engineering & Geosciences

Abstract

This master's thesis addresses a critical gap in the field of road construction by focusing on the limitations of Styrene-Butadiene-Styrene modified bitumen (SBS-MB), a widely-used binder. While SBS-MB offers superior performance, its long-term efficacy is compromised due to various aging processes. Existing rejuvenators are insufficient for restoring the binder's original properties. To remedy this, our research introduces an innovative rejuvenator that provides a more comprehensive restoration of SBS-MB, especially in the reconstruction of the polymer network. The study employs a multifaceted evaluation approach, leading to an enhanced understanding of the rejuvenator's effectiveness and mechanisms of action. Furthermore, we validate the rejuvenator's efficacy using real-world, field-collected materials. The findings not only offer a more effective method for restoring aged SBS-MB but also hold promise for improving the recyclability of Reclaimed Asphalt Pavement (RAP), potentially leading to more sustainable road construction practices, particularly in the Netherlands.