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Study on the Effect of Ultraviolet Absorber UV-531 on the Performance of SBS-Modified Asphalt
Asphalt pavements at high altitudes are susceptible to aging and disease under prolonged action of UV light. To improve their anti-ultraviolet aging performance, UV-531/SBS-modified asphalts with UV-531 dopings of 0.4%, 0.7%, and 1.0% were prepared by the high-speed shear method, and the effect of U...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9694652/ https://www.ncbi.nlm.nih.gov/pubmed/36431596 http://dx.doi.org/10.3390/ma15228110 |
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author | Liu, Li Liu, Leixin Liu, Zhaohui Yang, Chengcheng Pan, Boyang Li, Wenbo |
author_facet | Liu, Li Liu, Leixin Liu, Zhaohui Yang, Chengcheng Pan, Boyang Li, Wenbo |
author_sort | Liu, Li |
collection | PubMed |
description | Asphalt pavements at high altitudes are susceptible to aging and disease under prolonged action of UV light. To improve their anti-ultraviolet aging performance, UV-531/SBS-modified asphalts with UV-531 dopings of 0.4%, 0.7%, and 1.0% were prepared by the high-speed shear method, and the effect of UV-531 on the conventional performance of SBS-modified asphalt before aging was studied by needle penetration, softening point and 5 °C ductility tests. The high- and low-temperature rheological properties of UV-531/SBS-modified asphalt before and after aging were also analyzed by high temperature dynamic shear rheology test and low-temperature glass transition temperature test. Finally, the effect of UV-531 on the anti-aging performance of SBS-modified asphalt was evaluated by three methods, including rutting factor ratio, viscosity aging index, and infrared spectroscopy. The results show that with the increase of UV-531 doping, the needle penetration and 5 °C ductility show an increasing trend, but the effect on the softening point is small. The high temperature stability of SBS-modified asphalt is not much affected by the addition of UV-531, and the low-temperature stability is improved, and when 0.7% UV absorber is added, SBS-modified asphalt shows better low-temperature performance. The results of all three evaluation methods show that the addition of UV-531 significantly improved the anti-UV aging performance of SBS-modified asphalt, with the amount of 0.7% providing the asphalt with the best anti-UV aging performance. The results of the study can provide an important reference for improving the anti-ultraviolet aging performance of SBS-modified asphalt. |
format | Online Article Text |
id | pubmed-9694652 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-96946522022-11-26 Study on the Effect of Ultraviolet Absorber UV-531 on the Performance of SBS-Modified Asphalt Liu, Li Liu, Leixin Liu, Zhaohui Yang, Chengcheng Pan, Boyang Li, Wenbo Materials (Basel) Article Asphalt pavements at high altitudes are susceptible to aging and disease under prolonged action of UV light. To improve their anti-ultraviolet aging performance, UV-531/SBS-modified asphalts with UV-531 dopings of 0.4%, 0.7%, and 1.0% were prepared by the high-speed shear method, and the effect of UV-531 on the conventional performance of SBS-modified asphalt before aging was studied by needle penetration, softening point and 5 °C ductility tests. The high- and low-temperature rheological properties of UV-531/SBS-modified asphalt before and after aging were also analyzed by high temperature dynamic shear rheology test and low-temperature glass transition temperature test. Finally, the effect of UV-531 on the anti-aging performance of SBS-modified asphalt was evaluated by three methods, including rutting factor ratio, viscosity aging index, and infrared spectroscopy. The results show that with the increase of UV-531 doping, the needle penetration and 5 °C ductility show an increasing trend, but the effect on the softening point is small. The high temperature stability of SBS-modified asphalt is not much affected by the addition of UV-531, and the low-temperature stability is improved, and when 0.7% UV absorber is added, SBS-modified asphalt shows better low-temperature performance. The results of all three evaluation methods show that the addition of UV-531 significantly improved the anti-UV aging performance of SBS-modified asphalt, with the amount of 0.7% providing the asphalt with the best anti-UV aging performance. The results of the study can provide an important reference for improving the anti-ultraviolet aging performance of SBS-modified asphalt. MDPI 2022-11-16 /pmc/articles/PMC9694652/ /pubmed/36431596 http://dx.doi.org/10.3390/ma15228110 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/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 (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Liu, Li Liu, Leixin Liu, Zhaohui Yang, Chengcheng Pan, Boyang Li, Wenbo Study on the Effect of Ultraviolet Absorber UV-531 on the Performance of SBS-Modified Asphalt |
title | Study on the Effect of Ultraviolet Absorber UV-531 on the Performance of SBS-Modified Asphalt |
title_full | Study on the Effect of Ultraviolet Absorber UV-531 on the Performance of SBS-Modified Asphalt |
title_fullStr | Study on the Effect of Ultraviolet Absorber UV-531 on the Performance of SBS-Modified Asphalt |
title_full_unstemmed | Study on the Effect of Ultraviolet Absorber UV-531 on the Performance of SBS-Modified Asphalt |
title_short | Study on the Effect of Ultraviolet Absorber UV-531 on the Performance of SBS-Modified Asphalt |
title_sort | study on the effect of ultraviolet absorber uv-531 on the performance of sbs-modified asphalt |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9694652/ https://www.ncbi.nlm.nih.gov/pubmed/36431596 http://dx.doi.org/10.3390/ma15228110 |
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