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Study on Low-Temperature Cracking Performance of Asphalt under Heat and Light Together Conditions

The low-temperature cracking performance of asphalt is considered one of the main deteriorations in asphalt pavements. However, there have been few studies on the low-temperature cracking performance of asphalt under heat and light together. Hence, the ductility test, bending beam rheometer (BBR) te...

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Autores principales: Li, Limin, Guo, Zhaoyang, Ran, Longfei, Zhang, Jiewen
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7178169/
https://www.ncbi.nlm.nih.gov/pubmed/32230778
http://dx.doi.org/10.3390/ma13071541
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author Li, Limin
Guo, Zhaoyang
Ran, Longfei
Zhang, Jiewen
author_facet Li, Limin
Guo, Zhaoyang
Ran, Longfei
Zhang, Jiewen
author_sort Li, Limin
collection PubMed
description The low-temperature cracking performance of asphalt is considered one of the main deteriorations in asphalt pavements. However, there have been few studies on the low-temperature cracking performance of asphalt under heat and light together. Hence, the ductility test, bending beam rheometer (BBR) test, and asphalt composition analysis test are combined to investigate the low-temperature cracking performance under heat and light together based on the climatic conditions of China. The styrene–butadiene–styrene block copolymer (SBS)-modified asphalt binders were prepared with different modifier types and base asphalt in this research. The results show that the low-temperature cracking resistance of asphalt reduces under heat and light together. It is obviously reduced at the early stage, and it becomes worse with the increase of the aging time, temperature, and ultraviolet (UV) intensity. The asphalt composition has a significant impact on its low-temperature cracking performance, and the SBS modifier can improve the low-temperature cracking resistance of asphalt. The rational selection of base asphalt and modifier can improve the low-temperature cracking performance of asphalt. Under heat and light together, whether base asphalt or modified asphalt, the change trends of their ductility and component content are similar. Therefore, to improve the anti-cracking ability of the asphalt pavement, it is suggested to use the ductility of asphalt aged by heat and light together for 15 days as the evaluation index of the low-temperature cracking performance of asphalt, and asphalt should be selected according to the temperature and UV intensity of the asphalt pavement use area.
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spelling pubmed-71781692020-04-28 Study on Low-Temperature Cracking Performance of Asphalt under Heat and Light Together Conditions Li, Limin Guo, Zhaoyang Ran, Longfei Zhang, Jiewen Materials (Basel) Article The low-temperature cracking performance of asphalt is considered one of the main deteriorations in asphalt pavements. However, there have been few studies on the low-temperature cracking performance of asphalt under heat and light together. Hence, the ductility test, bending beam rheometer (BBR) test, and asphalt composition analysis test are combined to investigate the low-temperature cracking performance under heat and light together based on the climatic conditions of China. The styrene–butadiene–styrene block copolymer (SBS)-modified asphalt binders were prepared with different modifier types and base asphalt in this research. The results show that the low-temperature cracking resistance of asphalt reduces under heat and light together. It is obviously reduced at the early stage, and it becomes worse with the increase of the aging time, temperature, and ultraviolet (UV) intensity. The asphalt composition has a significant impact on its low-temperature cracking performance, and the SBS modifier can improve the low-temperature cracking resistance of asphalt. The rational selection of base asphalt and modifier can improve the low-temperature cracking performance of asphalt. Under heat and light together, whether base asphalt or modified asphalt, the change trends of their ductility and component content are similar. Therefore, to improve the anti-cracking ability of the asphalt pavement, it is suggested to use the ductility of asphalt aged by heat and light together for 15 days as the evaluation index of the low-temperature cracking performance of asphalt, and asphalt should be selected according to the temperature and UV intensity of the asphalt pavement use area. MDPI 2020-03-27 /pmc/articles/PMC7178169/ /pubmed/32230778 http://dx.doi.org/10.3390/ma13071541 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
Li, Limin
Guo, Zhaoyang
Ran, Longfei
Zhang, Jiewen
Study on Low-Temperature Cracking Performance of Asphalt under Heat and Light Together Conditions
title Study on Low-Temperature Cracking Performance of Asphalt under Heat and Light Together Conditions
title_full Study on Low-Temperature Cracking Performance of Asphalt under Heat and Light Together Conditions
title_fullStr Study on Low-Temperature Cracking Performance of Asphalt under Heat and Light Together Conditions
title_full_unstemmed Study on Low-Temperature Cracking Performance of Asphalt under Heat and Light Together Conditions
title_short Study on Low-Temperature Cracking Performance of Asphalt under Heat and Light Together Conditions
title_sort study on low-temperature cracking performance of asphalt under heat and light together conditions
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7178169/
https://www.ncbi.nlm.nih.gov/pubmed/32230778
http://dx.doi.org/10.3390/ma13071541
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AT zhangjiewen studyonlowtemperaturecrackingperformanceofasphaltunderheatandlighttogetherconditions