Property Characterization of Anti-Aging Additives and Modified Asphalt Based on Long-Term Aging Behavior
In order to achieve the good application of hindered amine light stabilizer (HALS) in the long-term aging control of asphalt pavement material, Tinuvin770 and Tinuvin622 light stabilizers were selected as modifiers for asphalt. The microstructure and characteristics of hindered amine light stabilize...
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| Format: | Article |
| Language: | English |
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Wiley
2022-01-01
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| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2022/2474374 |
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| author | Junlong Liu Lijing Chu Tianyuan Zhao Yunchu Zhu Zhi Cang Qian Chen Junshen Yuan |
| author_facet | Junlong Liu Lijing Chu Tianyuan Zhao Yunchu Zhu Zhi Cang Qian Chen Junshen Yuan |
| author_sort | Junlong Liu |
| collection | DOAJ |
| description | In order to achieve the good application of hindered amine light stabilizer (HALS) in the long-term aging control of asphalt pavement material, Tinuvin770 and Tinuvin622 light stabilizers were selected as modifiers for asphalt. The microstructure and characteristics of hindered amine light stabilizers were characterized by FIB-SEM. The elemental composition and relative content of hindered amine light stabilizers were studied by means of EDS analysis. The functional group composition of hindered amine light stabilizers was analyzed based on Dynamic-FTIR. On this basis, light stabilizer modified asphalt was prepared, and the effect of hindered amine light stabilizer on the thermal rheological properties of asphalt binder during UV aging period was studied by dynamic shear rheology (DSR). The changing law of low temperature rheological properties of hindered amine light stabilizer modified asphalt was evaluated by low temperature bending beam rheological test (BBR). The results showed that the hindered amine light stabilizer could capture the free radicals formed during the photodegradation of asphalt when subjected to ultraviolet aging. Under the impact of ultraviolet aging, hindered amine light stabilizer could improve the high temperature performance of asphalt binder. Furthermore, HALS could achieve the improving effect on the low temperature rheological properties and long-term aging performance of asphalt pavement materials. |
| format | Article |
| id | doaj-art-82e5d20e10934ec2bc93ad57b44b8459 |
| institution | Kabale University |
| issn | 1687-8442 |
| language | English |
| publishDate | 2022-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-82e5d20e10934ec2bc93ad57b44b84592025-02-03T05:49:19ZengWileyAdvances in Materials Science and Engineering1687-84422022-01-01202210.1155/2022/2474374Property Characterization of Anti-Aging Additives and Modified Asphalt Based on Long-Term Aging BehaviorJunlong Liu0Lijing Chu1Tianyuan Zhao2Yunchu Zhu3Zhi Cang4Qian Chen5Junshen Yuan6School of HighwayGuangzhou Urban Planning & Design Survey Research InstituteGuangdong Nanyue Transportation Investment & Construction Co. LtdSchool of Civil and Transportation EngineeringDatongbei Expressway Management Co. LtdSchool of HighwaySchool of Civil and Transportation EngineeringIn order to achieve the good application of hindered amine light stabilizer (HALS) in the long-term aging control of asphalt pavement material, Tinuvin770 and Tinuvin622 light stabilizers were selected as modifiers for asphalt. The microstructure and characteristics of hindered amine light stabilizers were characterized by FIB-SEM. The elemental composition and relative content of hindered amine light stabilizers were studied by means of EDS analysis. The functional group composition of hindered amine light stabilizers was analyzed based on Dynamic-FTIR. On this basis, light stabilizer modified asphalt was prepared, and the effect of hindered amine light stabilizer on the thermal rheological properties of asphalt binder during UV aging period was studied by dynamic shear rheology (DSR). The changing law of low temperature rheological properties of hindered amine light stabilizer modified asphalt was evaluated by low temperature bending beam rheological test (BBR). The results showed that the hindered amine light stabilizer could capture the free radicals formed during the photodegradation of asphalt when subjected to ultraviolet aging. Under the impact of ultraviolet aging, hindered amine light stabilizer could improve the high temperature performance of asphalt binder. Furthermore, HALS could achieve the improving effect on the low temperature rheological properties and long-term aging performance of asphalt pavement materials.http://dx.doi.org/10.1155/2022/2474374 |
| spellingShingle | Junlong Liu Lijing Chu Tianyuan Zhao Yunchu Zhu Zhi Cang Qian Chen Junshen Yuan Property Characterization of Anti-Aging Additives and Modified Asphalt Based on Long-Term Aging Behavior Advances in Materials Science and Engineering |
| title | Property Characterization of Anti-Aging Additives and Modified Asphalt Based on Long-Term Aging Behavior |
| title_full | Property Characterization of Anti-Aging Additives and Modified Asphalt Based on Long-Term Aging Behavior |
| title_fullStr | Property Characterization of Anti-Aging Additives and Modified Asphalt Based on Long-Term Aging Behavior |
| title_full_unstemmed | Property Characterization of Anti-Aging Additives and Modified Asphalt Based on Long-Term Aging Behavior |
| title_short | Property Characterization of Anti-Aging Additives and Modified Asphalt Based on Long-Term Aging Behavior |
| title_sort | property characterization of anti aging additives and modified asphalt based on long term aging behavior |
| url | http://dx.doi.org/10.1155/2022/2474374 |
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