Cargando…
Recycled Heavy Bio Oil as Performance Enhancer for Rubberized Bituminous Binders
Asphalt rubber (AR) is a sustainable paving material with merits including waste tire consumption, low traffic noise, and enhanced mechanical performance. However, the poor workability and storage stability limited its further application. This study attempted to alleviate these two concerns of AR s...
Autores principales: | , , , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2019
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6572319/ https://www.ncbi.nlm.nih.gov/pubmed/31060252 http://dx.doi.org/10.3390/polym11050800 |
_version_ | 1783427612820897792 |
---|---|
author | Yu, Jiangmiao Ren, Zhibin Gao, Zheming Wu, Qi Zhu, Zihan Yu, Huayang |
author_facet | Yu, Jiangmiao Ren, Zhibin Gao, Zheming Wu, Qi Zhu, Zihan Yu, Huayang |
author_sort | Yu, Jiangmiao |
collection | PubMed |
description | Asphalt rubber (AR) is a sustainable paving material with merits including waste tire consumption, low traffic noise, and enhanced mechanical performance. However, the poor workability and storage stability limited its further application. This study attempted to alleviate these two concerns of AR simultaneously by incorporating heavy bio oil (HBO). To achieve this goal, bio-AR binders with three different mixing sequences were prepared. A series of rheological and chemical tests were conducted. Test results prove that the bio-AR binders exhibited superior rutting and fatigue resistance compared to AR binder. The viscosity values of bio-ARs were closed to AR modified with commercial warm mix additive, which indicates enhancement in workability. Due to the relatively high density of HBO, the density difference between the asphalt liquid phase and crumb rubber in the bio-AR system narrowed, which brought improved storage stability. Among bio-ARs prepared with different mixing sequences, the direct mixing one (ARB) had the most satisfied overall performance. The early incorporation of HBO had limited negative influence on binder performance, but allowed for more energy saving during the bio-AR binder production. Future study will be conducted on performance of bio-AR mixtures and quantitative estimation of its energy saving during the blending and compacting process. |
format | Online Article Text |
id | pubmed-6572319 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-65723192019-06-18 Recycled Heavy Bio Oil as Performance Enhancer for Rubberized Bituminous Binders Yu, Jiangmiao Ren, Zhibin Gao, Zheming Wu, Qi Zhu, Zihan Yu, Huayang Polymers (Basel) Article Asphalt rubber (AR) is a sustainable paving material with merits including waste tire consumption, low traffic noise, and enhanced mechanical performance. However, the poor workability and storage stability limited its further application. This study attempted to alleviate these two concerns of AR simultaneously by incorporating heavy bio oil (HBO). To achieve this goal, bio-AR binders with three different mixing sequences were prepared. A series of rheological and chemical tests were conducted. Test results prove that the bio-AR binders exhibited superior rutting and fatigue resistance compared to AR binder. The viscosity values of bio-ARs were closed to AR modified with commercial warm mix additive, which indicates enhancement in workability. Due to the relatively high density of HBO, the density difference between the asphalt liquid phase and crumb rubber in the bio-AR system narrowed, which brought improved storage stability. Among bio-ARs prepared with different mixing sequences, the direct mixing one (ARB) had the most satisfied overall performance. The early incorporation of HBO had limited negative influence on binder performance, but allowed for more energy saving during the bio-AR binder production. Future study will be conducted on performance of bio-AR mixtures and quantitative estimation of its energy saving during the blending and compacting process. MDPI 2019-05-04 /pmc/articles/PMC6572319/ /pubmed/31060252 http://dx.doi.org/10.3390/polym11050800 Text en © 2019 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 Yu, Jiangmiao Ren, Zhibin Gao, Zheming Wu, Qi Zhu, Zihan Yu, Huayang Recycled Heavy Bio Oil as Performance Enhancer for Rubberized Bituminous Binders |
title | Recycled Heavy Bio Oil as Performance Enhancer for Rubberized Bituminous Binders |
title_full | Recycled Heavy Bio Oil as Performance Enhancer for Rubberized Bituminous Binders |
title_fullStr | Recycled Heavy Bio Oil as Performance Enhancer for Rubberized Bituminous Binders |
title_full_unstemmed | Recycled Heavy Bio Oil as Performance Enhancer for Rubberized Bituminous Binders |
title_short | Recycled Heavy Bio Oil as Performance Enhancer for Rubberized Bituminous Binders |
title_sort | recycled heavy bio oil as performance enhancer for rubberized bituminous binders |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6572319/ https://www.ncbi.nlm.nih.gov/pubmed/31060252 http://dx.doi.org/10.3390/polym11050800 |
work_keys_str_mv | AT yujiangmiao recycledheavybiooilasperformanceenhancerforrubberizedbituminousbinders AT renzhibin recycledheavybiooilasperformanceenhancerforrubberizedbituminousbinders AT gaozheming recycledheavybiooilasperformanceenhancerforrubberizedbituminousbinders AT wuqi recycledheavybiooilasperformanceenhancerforrubberizedbituminousbinders AT zhuzihan recycledheavybiooilasperformanceenhancerforrubberizedbituminousbinders AT yuhuayang recycledheavybiooilasperformanceenhancerforrubberizedbituminousbinders |