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The Effect of Waste Plastics on the Ageing Phenomenon of Bituminous Binders and Asphalt Mixtures

The push for environmental sustainability in the civil engineering industry has resulted in an increased interest in the use of recycled construction materials, with one example being the use of waste plastic for the modification of bituminous binder in asphalt mixtures. Existing research has associ...

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Detalles Bibliográficos
Autores principales: Hall, Finn, White, Greg
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8538202/
https://www.ncbi.nlm.nih.gov/pubmed/34683771
http://dx.doi.org/10.3390/ma14206176
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author Hall, Finn
White, Greg
author_facet Hall, Finn
White, Greg
author_sort Hall, Finn
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description The push for environmental sustainability in the civil engineering industry has resulted in an increased interest in the use of recycled construction materials, with one example being the use of waste plastic for the modification of bituminous binder in asphalt mixtures. Existing research has associated waste plastics with various binder and asphalt mixture performance enhancing properties. However, there is a lack of research on the age-related durability of waste plastic-modified roads. This research compared the effect of commercially available waste plastic binder modifiers on the ageing phenomenon of bituminous binders and asphalt mixtures, to the effect of conventional polymers SBS and EVA, through artificial bituminous binder and asphalt mixture ageing performed in a laboratory. The addition of polymers (both waste and virgin) resulted in an increase in binder stiffness after short-term ageing as the polymer content increased. The effect of the waste plastic on ageing was comparable to the effects associated with the conventional polymers, and it was concluded that the waste plastic binder modified products should be considered sustainable alternatives to standard polymers for bituminous binder and asphalt mixture modification.
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spelling pubmed-85382022021-10-24 The Effect of Waste Plastics on the Ageing Phenomenon of Bituminous Binders and Asphalt Mixtures Hall, Finn White, Greg Materials (Basel) Article The push for environmental sustainability in the civil engineering industry has resulted in an increased interest in the use of recycled construction materials, with one example being the use of waste plastic for the modification of bituminous binder in asphalt mixtures. Existing research has associated waste plastics with various binder and asphalt mixture performance enhancing properties. However, there is a lack of research on the age-related durability of waste plastic-modified roads. This research compared the effect of commercially available waste plastic binder modifiers on the ageing phenomenon of bituminous binders and asphalt mixtures, to the effect of conventional polymers SBS and EVA, through artificial bituminous binder and asphalt mixture ageing performed in a laboratory. The addition of polymers (both waste and virgin) resulted in an increase in binder stiffness after short-term ageing as the polymer content increased. The effect of the waste plastic on ageing was comparable to the effects associated with the conventional polymers, and it was concluded that the waste plastic binder modified products should be considered sustainable alternatives to standard polymers for bituminous binder and asphalt mixture modification. MDPI 2021-10-18 /pmc/articles/PMC8538202/ /pubmed/34683771 http://dx.doi.org/10.3390/ma14206176 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Hall, Finn
White, Greg
The Effect of Waste Plastics on the Ageing Phenomenon of Bituminous Binders and Asphalt Mixtures
title The Effect of Waste Plastics on the Ageing Phenomenon of Bituminous Binders and Asphalt Mixtures
title_full The Effect of Waste Plastics on the Ageing Phenomenon of Bituminous Binders and Asphalt Mixtures
title_fullStr The Effect of Waste Plastics on the Ageing Phenomenon of Bituminous Binders and Asphalt Mixtures
title_full_unstemmed The Effect of Waste Plastics on the Ageing Phenomenon of Bituminous Binders and Asphalt Mixtures
title_short The Effect of Waste Plastics on the Ageing Phenomenon of Bituminous Binders and Asphalt Mixtures
title_sort effect of waste plastics on the ageing phenomenon of bituminous binders and asphalt mixtures
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8538202/
https://www.ncbi.nlm.nih.gov/pubmed/34683771
http://dx.doi.org/10.3390/ma14206176
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