Effect of Waste Polyethylene and Wax-Based Additives on Bitumen Performance

Over the last years, the replacement of traditional polymer modifiers with waste plastics has attracted increasing interest. The implementation of such technology would allow a drastic reduction of both production cost and landfill disposal of wastes. Among all, polyethylene-based plastics have been...

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Autores principales:	Luca Desidery, Michele Lanotte
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	polyethylene-modified bitumen wax-based additives rutting linear viscoelastic properties Organic chemistry QD241-441
Acceso en línea:	https://doaj.org/article/39d5215a51a744df8552022d7a676391
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id	oai:doaj.org-article:39d5215a51a744df8552022d7a676391
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spelling	oai:doaj.org-article:39d5215a51a744df8552022d7a6763912021-11-11T18:45:36ZEffect of Waste Polyethylene and Wax-Based Additives on Bitumen Performance10.3390/polym132137332073-4360https://doaj.org/article/39d5215a51a744df8552022d7a6763912021-10-01T00:00:00Zhttps://www.mdpi.com/2073-4360/13/21/3733https://doaj.org/toc/2073-4360Over the last years, the replacement of traditional polymer modifiers with waste plastics has attracted increasing interest. The implementation of such technology would allow a drastic reduction of both production cost and landfill disposal of wastes. Among all, polyethylene-based plastics have been proved suitable for this purpose. The research activities presented in this paper aim to assess the synergistic effect of polyethylene and Fischer–Tropsch waxes on the viscoelastic properties and performance of the bitumen. In order to reduce the blending time, waxes, and polyethylene need to be added simultaneously. In fact, the presence of the waxes reduces the polarity of the bitumen matrix and increases the affinity with the polymer promoting its dispersion. Results demonstrate that the chain length of the waxes, the form of the added waste polyethylene, and the blending protocol have critical effects on the time-evolution of such properties. Short-chain waxes have a detrimental impact on the rutting resistance regardless of the blending protocol. On the contrary, long-chain waxes improve the overall behavior of the polyethylene-modified binders and, in particular, the resistance to permanent deformations.Luca DesideryMichele LanotteMDPI AGarticlepolyethylene-modified bitumenwax-based additivesruttinglinear viscoelastic propertiesOrganic chemistryQD241-441ENPolymers, Vol 13, Iss 3733, p 3733 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	polyethylene-modified bitumen wax-based additives rutting linear viscoelastic properties Organic chemistry QD241-441
spellingShingle	polyethylene-modified bitumen wax-based additives rutting linear viscoelastic properties Organic chemistry QD241-441 Luca Desidery Michele Lanotte Effect of Waste Polyethylene and Wax-Based Additives on Bitumen Performance
description	Over the last years, the replacement of traditional polymer modifiers with waste plastics has attracted increasing interest. The implementation of such technology would allow a drastic reduction of both production cost and landfill disposal of wastes. Among all, polyethylene-based plastics have been proved suitable for this purpose. The research activities presented in this paper aim to assess the synergistic effect of polyethylene and Fischer–Tropsch waxes on the viscoelastic properties and performance of the bitumen. In order to reduce the blending time, waxes, and polyethylene need to be added simultaneously. In fact, the presence of the waxes reduces the polarity of the bitumen matrix and increases the affinity with the polymer promoting its dispersion. Results demonstrate that the chain length of the waxes, the form of the added waste polyethylene, and the blending protocol have critical effects on the time-evolution of such properties. Short-chain waxes have a detrimental impact on the rutting resistance regardless of the blending protocol. On the contrary, long-chain waxes improve the overall behavior of the polyethylene-modified binders and, in particular, the resistance to permanent deformations.
format	article
author	Luca Desidery Michele Lanotte
author_facet	Luca Desidery Michele Lanotte
author_sort	Luca Desidery
title	Effect of Waste Polyethylene and Wax-Based Additives on Bitumen Performance
title_short	Effect of Waste Polyethylene and Wax-Based Additives on Bitumen Performance
title_full	Effect of Waste Polyethylene and Wax-Based Additives on Bitumen Performance
title_fullStr	Effect of Waste Polyethylene and Wax-Based Additives on Bitumen Performance
title_full_unstemmed	Effect of Waste Polyethylene and Wax-Based Additives on Bitumen Performance
title_sort	effect of waste polyethylene and wax-based additives on bitumen performance
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/39d5215a51a744df8552022d7a676391
work_keys_str_mv	AT lucadesidery effectofwastepolyethyleneandwaxbasedadditivesonbitumenperformance AT michelelanotte effectofwastepolyethyleneandwaxbasedadditivesonbitumenperformance
_version_	1718431696118874112

Effect of Waste Polyethylene and Wax-Based Additives on Bitumen Performance

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