Evaluation of Properties and Mechanisms of Waste Plastic/Rubber-Modified Asphalt

Waste plastic, such as polyethylene (PE), and waste rubber tires, are pollutants that adversely affect the environment. Thus, the ways these materials are used are important in realizing the goals of reduced CO<sub>2</sub> emissions and carbon neutrality. This paper investigates the fund...

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Autores principales:	Xiaorui Zhang, Chao Han, Frédéric Otto, Fan Zhang
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	rubber-modified asphalt waste plastic polyethylene molecular simulation interaction mechanism Engineering (General). Civil engineering (General) TA1-2040
Acceso en línea:	https://doaj.org/article/54e28d0a619143da9db5924e5b75b8fb
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spelling	oai:doaj.org-article:54e28d0a619143da9db5924e5b75b8fb2021-11-25T17:16:31ZEvaluation of Properties and Mechanisms of Waste Plastic/Rubber-Modified Asphalt10.3390/coatings111113652079-6412https://doaj.org/article/54e28d0a619143da9db5924e5b75b8fb2021-11-01T00:00:00Zhttps://www.mdpi.com/2079-6412/11/11/1365https://doaj.org/toc/2079-6412Waste plastic, such as polyethylene (PE), and waste rubber tires, are pollutants that adversely affect the environment. Thus, the ways these materials are used are important in realizing the goals of reduced CO<sub>2</sub> emissions and carbon neutrality. This paper investigates the fundamental properties, compatibility, and interaction mechanism of waste plastic/rubber-modified asphalt (WPRMA). Dynamic shear rheology, fluorescence microscopy, a differential scanning calorimeter, and molecular dynamic simulation software were used to evaluate the properties and mechanisms of WPRMA. The results show that the anti-rutting temperature of WPRMA with different waste plastic contents is higher than 60 °C and the optimal dosage of waste PE in WPRMA is 8%, which can enhance the high-temperature properties and compatibility of rubber-modified asphalt. The temperature can directly promote the melting and decomposition of the functional groups in WPRMA and thus must be strictly controlled during the mix production process. The interaction mechanism suggests that waste plastic can form networks and package the rubber particles in rubber-modified asphalt. The main force between waste plastic and rubber is Van der Waals force, which rarely occurs in chemical reactions.Xiaorui ZhangChao HanFrédéric OttoFan ZhangMDPI AGarticlerubber-modified asphaltwaste plasticpolyethylenemolecular simulationinteraction mechanismEngineering (General). Civil engineering (General)TA1-2040ENCoatings, Vol 11, Iss 1365, p 1365 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	rubber-modified asphalt waste plastic polyethylene molecular simulation interaction mechanism Engineering (General). Civil engineering (General) TA1-2040
spellingShingle	rubber-modified asphalt waste plastic polyethylene molecular simulation interaction mechanism Engineering (General). Civil engineering (General) TA1-2040 Xiaorui Zhang Chao Han Frédéric Otto Fan Zhang Evaluation of Properties and Mechanisms of Waste Plastic/Rubber-Modified Asphalt
description	Waste plastic, such as polyethylene (PE), and waste rubber tires, are pollutants that adversely affect the environment. Thus, the ways these materials are used are important in realizing the goals of reduced CO<sub>2</sub> emissions and carbon neutrality. This paper investigates the fundamental properties, compatibility, and interaction mechanism of waste plastic/rubber-modified asphalt (WPRMA). Dynamic shear rheology, fluorescence microscopy, a differential scanning calorimeter, and molecular dynamic simulation software were used to evaluate the properties and mechanisms of WPRMA. The results show that the anti-rutting temperature of WPRMA with different waste plastic contents is higher than 60 °C and the optimal dosage of waste PE in WPRMA is 8%, which can enhance the high-temperature properties and compatibility of rubber-modified asphalt. The temperature can directly promote the melting and decomposition of the functional groups in WPRMA and thus must be strictly controlled during the mix production process. The interaction mechanism suggests that waste plastic can form networks and package the rubber particles in rubber-modified asphalt. The main force between waste plastic and rubber is Van der Waals force, which rarely occurs in chemical reactions.
format	article
author	Xiaorui Zhang Chao Han Frédéric Otto Fan Zhang
author_facet	Xiaorui Zhang Chao Han Frédéric Otto Fan Zhang
author_sort	Xiaorui Zhang
title	Evaluation of Properties and Mechanisms of Waste Plastic/Rubber-Modified Asphalt
title_short	Evaluation of Properties and Mechanisms of Waste Plastic/Rubber-Modified Asphalt
title_full	Evaluation of Properties and Mechanisms of Waste Plastic/Rubber-Modified Asphalt
title_fullStr	Evaluation of Properties and Mechanisms of Waste Plastic/Rubber-Modified Asphalt
title_full_unstemmed	Evaluation of Properties and Mechanisms of Waste Plastic/Rubber-Modified Asphalt
title_sort	evaluation of properties and mechanisms of waste plastic/rubber-modified asphalt
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/54e28d0a619143da9db5924e5b75b8fb
work_keys_str_mv	AT xiaoruizhang evaluationofpropertiesandmechanismsofwasteplasticrubbermodifiedasphalt AT chaohan evaluationofpropertiesandmechanismsofwasteplasticrubbermodifiedasphalt AT fredericotto evaluationofpropertiesandmechanismsofwasteplasticrubbermodifiedasphalt AT fanzhang evaluationofpropertiesandmechanismsofwasteplasticrubbermodifiedasphalt
_version_	1718412529768595456

Evaluation of Properties and Mechanisms of Waste Plastic/Rubber-Modified Asphalt

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