Rheological, physicochemical, and microstructural properties of asphalt binder modified by fumed silica nanoparticles

Abstract Warm mix asphalt (WMA) is gaining increased attention in the asphalt paving industry as an eco-friendly and sustainable technology. WMA technologies are favorable in producing asphalt mixtures at temperatures 20–60 °C lower in comparison to conventional hot mix asphalt. This saves non-renew...

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Autores principales:	Goshtasp Cheraghian, Michael P. Wistuba, Sajad Kiani, Andrew R. Barron, Ali Behnood
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/934221981aef4a73bf45aff5d7a3eb70
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spelling	oai:doaj.org-article:934221981aef4a73bf45aff5d7a3eb702021-12-02T15:57:03ZRheological, physicochemical, and microstructural properties of asphalt binder modified by fumed silica nanoparticles10.1038/s41598-021-90620-w2045-2322https://doaj.org/article/934221981aef4a73bf45aff5d7a3eb702021-06-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-90620-whttps://doaj.org/toc/2045-2322Abstract Warm mix asphalt (WMA) is gaining increased attention in the asphalt paving industry as an eco-friendly and sustainable technology. WMA technologies are favorable in producing asphalt mixtures at temperatures 20–60 °C lower in comparison to conventional hot mix asphalt. This saves non-renewable fossil fuels, reduces energy consumption, and minimizes vapors and greenhouse gas emissions in the production, placement and conservation processes of asphalt mixtures. At the same time, this temperature reduction must not reduce the performance of asphalt pavements in-field. Low aging resistance, high moisture susceptibility, and low durability are generally seen as substantial drawbacks of WMA, which can lead to inferior pavement performance, and increased maintenance costs. This is partly due to the fact that low production temperature may increase the amount of water molecules trapped in the asphalt mixture. As a potential remedy, here we use fumed silica nanoparticles (FSN) have shown excellent potential in enhancing moisture and aging susceptibility of asphalt binders. In this study, asphalt binder modification by means of FSN was investigated, considering the effects of short-term and long-term aging on the rheological, thermal, and microstructural binder properties. This research paves the way for optimizing WMA by nanoparticles to present enhanced green asphalt technology.Goshtasp CheraghianMichael P. WistubaSajad KianiAndrew R. BarronAli BehnoodNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-20 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Goshtasp Cheraghian Michael P. Wistuba Sajad Kiani Andrew R. Barron Ali Behnood Rheological, physicochemical, and microstructural properties of asphalt binder modified by fumed silica nanoparticles
description	Abstract Warm mix asphalt (WMA) is gaining increased attention in the asphalt paving industry as an eco-friendly and sustainable technology. WMA technologies are favorable in producing asphalt mixtures at temperatures 20–60 °C lower in comparison to conventional hot mix asphalt. This saves non-renewable fossil fuels, reduces energy consumption, and minimizes vapors and greenhouse gas emissions in the production, placement and conservation processes of asphalt mixtures. At the same time, this temperature reduction must not reduce the performance of asphalt pavements in-field. Low aging resistance, high moisture susceptibility, and low durability are generally seen as substantial drawbacks of WMA, which can lead to inferior pavement performance, and increased maintenance costs. This is partly due to the fact that low production temperature may increase the amount of water molecules trapped in the asphalt mixture. As a potential remedy, here we use fumed silica nanoparticles (FSN) have shown excellent potential in enhancing moisture and aging susceptibility of asphalt binders. In this study, asphalt binder modification by means of FSN was investigated, considering the effects of short-term and long-term aging on the rheological, thermal, and microstructural binder properties. This research paves the way for optimizing WMA by nanoparticles to present enhanced green asphalt technology.
format	article
author	Goshtasp Cheraghian Michael P. Wistuba Sajad Kiani Andrew R. Barron Ali Behnood
author_facet	Goshtasp Cheraghian Michael P. Wistuba Sajad Kiani Andrew R. Barron Ali Behnood
author_sort	Goshtasp Cheraghian
title	Rheological, physicochemical, and microstructural properties of asphalt binder modified by fumed silica nanoparticles
title_short	Rheological, physicochemical, and microstructural properties of asphalt binder modified by fumed silica nanoparticles
title_full	Rheological, physicochemical, and microstructural properties of asphalt binder modified by fumed silica nanoparticles
title_fullStr	Rheological, physicochemical, and microstructural properties of asphalt binder modified by fumed silica nanoparticles
title_full_unstemmed	Rheological, physicochemical, and microstructural properties of asphalt binder modified by fumed silica nanoparticles
title_sort	rheological, physicochemical, and microstructural properties of asphalt binder modified by fumed silica nanoparticles
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/934221981aef4a73bf45aff5d7a3eb70
work_keys_str_mv	AT goshtaspcheraghian rheologicalphysicochemicalandmicrostructuralpropertiesofasphaltbindermodifiedbyfumedsilicananoparticles AT michaelpwistuba rheologicalphysicochemicalandmicrostructuralpropertiesofasphaltbindermodifiedbyfumedsilicananoparticles AT sajadkiani rheologicalphysicochemicalandmicrostructuralpropertiesofasphaltbindermodifiedbyfumedsilicananoparticles AT andrewrbarron rheologicalphysicochemicalandmicrostructuralpropertiesofasphaltbindermodifiedbyfumedsilicananoparticles AT alibehnood rheologicalphysicochemicalandmicrostructuralpropertiesofasphaltbindermodifiedbyfumedsilicananoparticles
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Rheological, physicochemical, and microstructural properties of asphalt binder modified by fumed silica nanoparticles

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