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Performance Characterization of Hot Mix Asphalt with High RAP Content and Basalt Fiber
Incorporating reclaimed asphalt pavement (RAP) into asphalt mixtures achieves astonishingly environmental and economic benefits. However, there is hesitation to use higher RAP content due to the concern regarding the deterioration in pavement performance, especially the cracking resistance. Basalt f...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7412359/ https://www.ncbi.nlm.nih.gov/pubmed/32679680 http://dx.doi.org/10.3390/ma13143145 |
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author | Wu, Zhengguang Zhang, Chen Xiao, Peng Li, Bo Kang, Aihong |
author_facet | Wu, Zhengguang Zhang, Chen Xiao, Peng Li, Bo Kang, Aihong |
author_sort | Wu, Zhengguang |
collection | PubMed |
description | Incorporating reclaimed asphalt pavement (RAP) into asphalt mixtures achieves astonishingly environmental and economic benefits. However, there is hesitation to use higher RAP content due to the concern regarding the deterioration in pavement performance, especially the cracking resistance. Basalt fiber has been considered an effective additive to reinforce the performance of asphalt mixtures and, subsequently, the reinforcement effect is also expected for high-RAP content mixtures. Therefore, this study investigated the effect of basalt fiber on the pavement performance of asphalt mixtures with 0%, 30%, 40%, and 50% RAP contents against high-temperature performance, moisture susceptibility, low-temperature and intermediate-temperature cracking resistance, based on the wheel-tracking test, the uniaxial penetration test, the freeze-thaw splitting test, the low-temperature bending beam test, the semicircular bend fracture test and the indirect tensile asphalt cracking test, respectively. In addition, a performance-space diagram was developed to determine the mixture performance shift caused by basalt fiber. The results showed that adding basalt fiber compensated for the detrimental effect caused by RAP, leading to significant enhancement in moisture susceptibility and low- and intermediate-temperature cracking resistance of mixtures with high RAP content, along with the enhancement in high-temperature performance, indicating that basalt fiber can contribute to the use of high RAP content. |
format | Online Article Text |
id | pubmed-7412359 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-74123592020-08-26 Performance Characterization of Hot Mix Asphalt with High RAP Content and Basalt Fiber Wu, Zhengguang Zhang, Chen Xiao, Peng Li, Bo Kang, Aihong Materials (Basel) Article Incorporating reclaimed asphalt pavement (RAP) into asphalt mixtures achieves astonishingly environmental and economic benefits. However, there is hesitation to use higher RAP content due to the concern regarding the deterioration in pavement performance, especially the cracking resistance. Basalt fiber has been considered an effective additive to reinforce the performance of asphalt mixtures and, subsequently, the reinforcement effect is also expected for high-RAP content mixtures. Therefore, this study investigated the effect of basalt fiber on the pavement performance of asphalt mixtures with 0%, 30%, 40%, and 50% RAP contents against high-temperature performance, moisture susceptibility, low-temperature and intermediate-temperature cracking resistance, based on the wheel-tracking test, the uniaxial penetration test, the freeze-thaw splitting test, the low-temperature bending beam test, the semicircular bend fracture test and the indirect tensile asphalt cracking test, respectively. In addition, a performance-space diagram was developed to determine the mixture performance shift caused by basalt fiber. The results showed that adding basalt fiber compensated for the detrimental effect caused by RAP, leading to significant enhancement in moisture susceptibility and low- and intermediate-temperature cracking resistance of mixtures with high RAP content, along with the enhancement in high-temperature performance, indicating that basalt fiber can contribute to the use of high RAP content. MDPI 2020-07-15 /pmc/articles/PMC7412359/ /pubmed/32679680 http://dx.doi.org/10.3390/ma13143145 Text en © 2020 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 Wu, Zhengguang Zhang, Chen Xiao, Peng Li, Bo Kang, Aihong Performance Characterization of Hot Mix Asphalt with High RAP Content and Basalt Fiber |
title | Performance Characterization of Hot Mix Asphalt with High RAP Content and Basalt Fiber |
title_full | Performance Characterization of Hot Mix Asphalt with High RAP Content and Basalt Fiber |
title_fullStr | Performance Characterization of Hot Mix Asphalt with High RAP Content and Basalt Fiber |
title_full_unstemmed | Performance Characterization of Hot Mix Asphalt with High RAP Content and Basalt Fiber |
title_short | Performance Characterization of Hot Mix Asphalt with High RAP Content and Basalt Fiber |
title_sort | performance characterization of hot mix asphalt with high rap content and basalt fiber |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7412359/ https://www.ncbi.nlm.nih.gov/pubmed/32679680 http://dx.doi.org/10.3390/ma13143145 |
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