Analysis of replacing virgin bitumen by plastic waste in asphalt concrete mixtures

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URI: http://hdl.handle.net/10902/25257
ISSN: 1029-8436
ISSN: 1477-268X
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Autoría
Lastra González, PedroAutoridad Unican; Lizasoain Arteaga, Esther; Castro Fresno, DanielAutoridad Unican; Flintsch, Gerardo
Fecha
2021-01-08
Derechos
This is an Accepted Manuscript of an article published by Taylor & Francis in International Journal of Pavement Engineering on Jan 08th 2021, available online: https://www.tandfonline.com/doi/full/10.1080/10298436.2020.1866760
Publicado en
International Journal of Pavement Engineering, 2022, 23(8), 2621-2630
Editorial
Taylor and Francis Ltd.
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Palabras clave
Asphalt mixture
Modified mixture
Plastic waste
Sustainability
Binder replacement
Resumen/Abstract
ABSTRACT: Polymers are used worldwide for their unique properties such as a light weight or chemical resistance, but which have led to an environmental challenge because of the time they need to completely decompose when buried in landfills. Complementarily, bitumen generates the second biggest environmental impact in the construction of a road. This paper analyses the mechanical, environmental and economic performance of replacing 25% of bitumen with two low-cost plastic wastes (cable plastic and the film fraction from household packaging waste) in an asphalt mixture. The results demonstrated the feasibility of the technology from the 3 viewpoints analysed. The plastic-modified mixtures achieve reductions of more than 17% and 11% in the economic and environmental impact when the analysis is focused on the wearing course.
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