Modification and enhancing effect of SPUA material on asphalt binder: A study of viscoelastic properties and microstructure characterization
In order to significantly improve the viscoelasticity and durability of asphalt materials, Spray polyurea (SPUA) resin modified materials with different particle sizes were obtained by low-temperature fine grinding process in this study, and the corresponding SPUA modified asphalt was prepared. The...
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| Format: | Article |
| Language: | English |
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Elsevier
2023-07-01
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| Series: | Case Studies in Construction Materials |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214509522009135 |
| _version_ | 1797799008843857920 |
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| author | Xiaolong Sun Qinyuan Peng Yongqiang Zhu Jiao Jin Jieting Xu Yingmei Yin Alex Hay-Man Ng |
| author_facet | Xiaolong Sun Qinyuan Peng Yongqiang Zhu Jiao Jin Jieting Xu Yingmei Yin Alex Hay-Man Ng |
| author_sort | Xiaolong Sun |
| collection | DOAJ |
| description | In order to significantly improve the viscoelasticity and durability of asphalt materials, Spray polyurea (SPUA) resin modified materials with different particle sizes were obtained by low-temperature fine grinding process in this study, and the corresponding SPUA modified asphalt was prepared. The basic properties of resin modified asphalt were compared and analyzed. The influence of SPUA resin modification materials on the apparent viscosity of asphalt was analyzed. Through dynamic shear rheometer (DSR) and bending beam rheometer (BBR) test, the effect of SPUA resin material on rheological properties of asphalt was systematically investigated. Furthermore, the modifier and asphalt binder were characterized by scanning electron microscopy (SEM) and X-ray energy dispersive spectroscopy (EDS). Results show that decreasing the particle size or increasing the dosage of the SPUA modifier could improve the softening point and apparent viscosity and reduce the ductility, which indicate SPUA modifier could improve the high temperature shear resistance and elastic recovery performance of asphalt binder. The SPUA modifier with smaller particle size has better high temperature rheological modification effect and less negative effect on low temperature performance deterioration. Although part of the functional spherical structure was damaged, the 0.075 mm SPUA modifier could closely interact with the base asphalt perfectly. This study would provide the scientific references for the application of Spray polyurea resin materials in the field of asphalt pavement materials. |
| first_indexed | 2024-03-13T04:12:28Z |
| format | Article |
| id | doaj.art-61c11b41d09142da844280a83fdced16 |
| institution | Directory Open Access Journal |
| issn | 2214-5095 |
| language | English |
| last_indexed | 2024-03-13T04:12:28Z |
| publishDate | 2023-07-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Case Studies in Construction Materials |
| spelling | doaj.art-61c11b41d09142da844280a83fdced162023-06-21T06:53:12ZengElsevierCase Studies in Construction Materials2214-50952023-07-0118e01781Modification and enhancing effect of SPUA material on asphalt binder: A study of viscoelastic properties and microstructure characterizationXiaolong Sun0Qinyuan Peng1Yongqiang Zhu2Jiao Jin3Jieting Xu4Yingmei Yin5Alex Hay-Man Ng6School of Civil and Transportation Engineering, Guangdong University of Technology, Guangzhou 510006, China; Highway Engineering Key Laboratory of Sichuan Province, Southwest Jiaotong University, Chendu 611756, China; National Engineering Research Center of Highway Maintenance Technology, Changsha University of Science & Technology, Changsha 410114, Hunan, ChinaSchool of Civil and Transportation Engineering, Guangdong University of Technology, Guangzhou 510006, ChinaGuangzhou GuanYue Highway & Bridge Co., Ltd, Guangzhou 511401 ChinaNational Engineering Research Center of Highway Maintenance Technology, Changsha University of Science & Technology, Changsha 410114, Hunan, ChinaSchool of Transportation and Civil Engineering and Architecture, Foshan University, Foshan 528000, ChinaSchool of Civil and Transportation Engineering, Guangdong University of Technology, Guangzhou 510006, ChinaSchool of Civil and Transportation Engineering, Guangdong University of Technology, Guangzhou 510006, China; Corresponding author.In order to significantly improve the viscoelasticity and durability of asphalt materials, Spray polyurea (SPUA) resin modified materials with different particle sizes were obtained by low-temperature fine grinding process in this study, and the corresponding SPUA modified asphalt was prepared. The basic properties of resin modified asphalt were compared and analyzed. The influence of SPUA resin modification materials on the apparent viscosity of asphalt was analyzed. Through dynamic shear rheometer (DSR) and bending beam rheometer (BBR) test, the effect of SPUA resin material on rheological properties of asphalt was systematically investigated. Furthermore, the modifier and asphalt binder were characterized by scanning electron microscopy (SEM) and X-ray energy dispersive spectroscopy (EDS). Results show that decreasing the particle size or increasing the dosage of the SPUA modifier could improve the softening point and apparent viscosity and reduce the ductility, which indicate SPUA modifier could improve the high temperature shear resistance and elastic recovery performance of asphalt binder. The SPUA modifier with smaller particle size has better high temperature rheological modification effect and less negative effect on low temperature performance deterioration. Although part of the functional spherical structure was damaged, the 0.075 mm SPUA modifier could closely interact with the base asphalt perfectly. This study would provide the scientific references for the application of Spray polyurea resin materials in the field of asphalt pavement materials.http://www.sciencedirect.com/science/article/pii/S2214509522009135Road engineeringAsphaltSpray polyurea resinRheologyMicromorphology |
| spellingShingle | Xiaolong Sun Qinyuan Peng Yongqiang Zhu Jiao Jin Jieting Xu Yingmei Yin Alex Hay-Man Ng Modification and enhancing effect of SPUA material on asphalt binder: A study of viscoelastic properties and microstructure characterization Case Studies in Construction Materials Road engineering Asphalt Spray polyurea resin Rheology Micromorphology |
| title | Modification and enhancing effect of SPUA material on asphalt binder: A study of viscoelastic properties and microstructure characterization |
| title_full | Modification and enhancing effect of SPUA material on asphalt binder: A study of viscoelastic properties and microstructure characterization |
| title_fullStr | Modification and enhancing effect of SPUA material on asphalt binder: A study of viscoelastic properties and microstructure characterization |
| title_full_unstemmed | Modification and enhancing effect of SPUA material on asphalt binder: A study of viscoelastic properties and microstructure characterization |
| title_short | Modification and enhancing effect of SPUA material on asphalt binder: A study of viscoelastic properties and microstructure characterization |
| title_sort | modification and enhancing effect of spua material on asphalt binder a study of viscoelastic properties and microstructure characterization |
| topic | Road engineering Asphalt Spray polyurea resin Rheology Micromorphology |
| url | http://www.sciencedirect.com/science/article/pii/S2214509522009135 |
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