Cargando…

Diffusibility Enhancement of Rejuvenator by Epoxidized Soybean Oil and Its Influence on the Performance of Recycled Hot Mix Asphalt Mixtures

Epoxidized soybean oil (ESO) was employed as a novel penetrant cooperating with a conventional rejuvenator (CR) for the recycling of reclaimed asphalt pavement (RAP). The influence of ESO on the diffusibility and the regenerating effects of CR on RAP were investigated. The diffusibility testing resu...

Descripción completa

Detalles Bibliográficos
Autores principales: Kuang, Dongliang, Jiao, Yuan, Ye, Zhou, Lu, Zaihong, Chen, Huaxin, Yu, Jianying, liu, Ning
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5978210/
https://www.ncbi.nlm.nih.gov/pubmed/29783675
http://dx.doi.org/10.3390/ma11050833
_version_ 1783327493227282432
author Kuang, Dongliang
Jiao, Yuan
Ye, Zhou
Lu, Zaihong
Chen, Huaxin
Yu, Jianying
liu, Ning
author_facet Kuang, Dongliang
Jiao, Yuan
Ye, Zhou
Lu, Zaihong
Chen, Huaxin
Yu, Jianying
liu, Ning
author_sort Kuang, Dongliang
collection PubMed
description Epoxidized soybean oil (ESO) was employed as a novel penetrant cooperating with a conventional rejuvenator (CR) for the recycling of reclaimed asphalt pavement (RAP). The influence of ESO on the diffusibility and the regenerating effects of CR on RAP were investigated. The diffusibility testing result shows that the diffusibility of CR is enhanced by the addition of ESO because the epoxy group in ESO can facilitate asphaltene dispersion due to its high polarity, which simultaneously reduces the viscosity and improves the fluidity of aged bitumen so as to allow diffusion of the rejuvenator into the aged bitumen. Road performance testing of a recycled hot mix asphalt mixture (RHMA) indicates that the fatigue and cracking resistance properties as well as the water stability of RHMA containing CR can be improved by the addition of ESO due to the diffusibility enhancement of CR, which boosts the regenerating effect of CR on aged bitumen in RAP. The fatigue and cracking resistance properties as well as the water stability of the recycled hot mix asphalt mixture containing CR with 7 wt % ESO approximate those of the hot mix asphalt mixture composed of the same virgin aggregates and bitumen. Taking into account the rutting resistance decline versus the addition of ESO, the content of ESO should not exceed 7 wt % of the conventional rejuvenator.
format Online
Article
Text
id pubmed-5978210
institution National Center for Biotechnology Information
language English
publishDate 2018
publisher MDPI
record_format MEDLINE/PubMed
spelling pubmed-59782102018-05-31 Diffusibility Enhancement of Rejuvenator by Epoxidized Soybean Oil and Its Influence on the Performance of Recycled Hot Mix Asphalt Mixtures Kuang, Dongliang Jiao, Yuan Ye, Zhou Lu, Zaihong Chen, Huaxin Yu, Jianying liu, Ning Materials (Basel) Article Epoxidized soybean oil (ESO) was employed as a novel penetrant cooperating with a conventional rejuvenator (CR) for the recycling of reclaimed asphalt pavement (RAP). The influence of ESO on the diffusibility and the regenerating effects of CR on RAP were investigated. The diffusibility testing result shows that the diffusibility of CR is enhanced by the addition of ESO because the epoxy group in ESO can facilitate asphaltene dispersion due to its high polarity, which simultaneously reduces the viscosity and improves the fluidity of aged bitumen so as to allow diffusion of the rejuvenator into the aged bitumen. Road performance testing of a recycled hot mix asphalt mixture (RHMA) indicates that the fatigue and cracking resistance properties as well as the water stability of RHMA containing CR can be improved by the addition of ESO due to the diffusibility enhancement of CR, which boosts the regenerating effect of CR on aged bitumen in RAP. The fatigue and cracking resistance properties as well as the water stability of the recycled hot mix asphalt mixture containing CR with 7 wt % ESO approximate those of the hot mix asphalt mixture composed of the same virgin aggregates and bitumen. Taking into account the rutting resistance decline versus the addition of ESO, the content of ESO should not exceed 7 wt % of the conventional rejuvenator. MDPI 2018-05-18 /pmc/articles/PMC5978210/ /pubmed/29783675 http://dx.doi.org/10.3390/ma11050833 Text en © 2018 by the authors. 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 (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Kuang, Dongliang
Jiao, Yuan
Ye, Zhou
Lu, Zaihong
Chen, Huaxin
Yu, Jianying
liu, Ning
Diffusibility Enhancement of Rejuvenator by Epoxidized Soybean Oil and Its Influence on the Performance of Recycled Hot Mix Asphalt Mixtures
title Diffusibility Enhancement of Rejuvenator by Epoxidized Soybean Oil and Its Influence on the Performance of Recycled Hot Mix Asphalt Mixtures
title_full Diffusibility Enhancement of Rejuvenator by Epoxidized Soybean Oil and Its Influence on the Performance of Recycled Hot Mix Asphalt Mixtures
title_fullStr Diffusibility Enhancement of Rejuvenator by Epoxidized Soybean Oil and Its Influence on the Performance of Recycled Hot Mix Asphalt Mixtures
title_full_unstemmed Diffusibility Enhancement of Rejuvenator by Epoxidized Soybean Oil and Its Influence on the Performance of Recycled Hot Mix Asphalt Mixtures
title_short Diffusibility Enhancement of Rejuvenator by Epoxidized Soybean Oil and Its Influence on the Performance of Recycled Hot Mix Asphalt Mixtures
title_sort diffusibility enhancement of rejuvenator by epoxidized soybean oil and its influence on the performance of recycled hot mix asphalt mixtures
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5978210/
https://www.ncbi.nlm.nih.gov/pubmed/29783675
http://dx.doi.org/10.3390/ma11050833
work_keys_str_mv AT kuangdongliang diffusibilityenhancementofrejuvenatorbyepoxidizedsoybeanoilanditsinfluenceontheperformanceofrecycledhotmixasphaltmixtures
AT jiaoyuan diffusibilityenhancementofrejuvenatorbyepoxidizedsoybeanoilanditsinfluenceontheperformanceofrecycledhotmixasphaltmixtures
AT yezhou diffusibilityenhancementofrejuvenatorbyepoxidizedsoybeanoilanditsinfluenceontheperformanceofrecycledhotmixasphaltmixtures
AT luzaihong diffusibilityenhancementofrejuvenatorbyepoxidizedsoybeanoilanditsinfluenceontheperformanceofrecycledhotmixasphaltmixtures
AT chenhuaxin diffusibilityenhancementofrejuvenatorbyepoxidizedsoybeanoilanditsinfluenceontheperformanceofrecycledhotmixasphaltmixtures
AT yujianying diffusibilityenhancementofrejuvenatorbyepoxidizedsoybeanoilanditsinfluenceontheperformanceofrecycledhotmixasphaltmixtures
AT liuning diffusibilityenhancementofrejuvenatorbyepoxidizedsoybeanoilanditsinfluenceontheperformanceofrecycledhotmixasphaltmixtures