Development in Waste-Derived Semi-Alternative and Full-Alternative Binder
J. Zhang (TU Delft - Civil Engineering & Geosciences)
Xueyan Liu – Mentor (TU Delft - Pavement Engineering)
Peng Lin – Mentor (TU Delft - Pavement Engineering)
Sandra M. J. G. Erkens – Graduation committee member (TU Delft - Pavement Engineering)
E. Schlangen – Graduation committee member (TU Delft - Materials and Environment)
Eyassu Hagos – Graduation committee member
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Abstract
The widespread use of traditional bitumen, derived from finite crude oil resources, has led to growing concerns over its environmental impact, long-term availability, and cost. These challenges underscore the urgent need for sustainable, alternative binders in infrastructure applications such as road construction. Although previous research has explored bio-based and recycled waste materials as potential substitutes, these alternatives often fail to meet compatibility, durability, and performance standards.
To overcome these obstacles, this study employs a multifaceted methodology encompassing rheological, chemical, and mechanical analyses, along with environmental assessments. The objective is to develop an alternative binder synthesized from bio-based and waste materials that offers comparable or improved durability and performance. Our findings suggest that the alternative binder presents a viable replacement for traditional, petroleum-based bitumen. This innovation not only enhances the sustainability and circularity of road materials but also mitigates the construction industry's dependence on non-renewable oil resources.
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File under embargo until 01-10-2025