Silane Modification of Crumb Rubber on the Rheological Properties of Rubberized Asphalt
Because there is a lack of studies on rubberized asphalt based on silane coupling agent modification, KH-550 modified crumb rubber and rubberized asphalts incorporating normal rubber and modified rubber were prepared, respectively. The rheological properties of asphalt samples were evaluated by a dy...
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| Format: | Article |
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MDPI AG
2019-11-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/9/22/4831 |
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| author | Yunbao Zhang Zhaohui Liu Juan Peng |
| author_facet | Yunbao Zhang Zhaohui Liu Juan Peng |
| author_sort | Yunbao Zhang |
| collection | DOAJ |
| description | Because there is a lack of studies on rubberized asphalt based on silane coupling agent modification, KH-550 modified crumb rubber and rubberized asphalts incorporating normal rubber and modified rubber were prepared, respectively. The rheological properties of asphalt samples were evaluated by a dynamic shearing rheometer and a bending beam rheometer; then, mechanisms of KH-550 on rubber surface and functional group changes were analyzed by a Brunauer−Emmett−Teller specific surface area measurement and a Fourier transform infrared spectroscopy. The results imply that: (i) rubber surface area rises and chemical reactions accrue between rubber and asphalt; (ii) modified rubber achieves a more stable state within asphalt, which helps to enhance the mechanical properties of asphalt; (iii) modified rubber helps asphalt to dissipate stress so as to resist the formation of cracks and deformation under low temperature conditions. |
| first_indexed | 2024-12-20T20:06:21Z |
| format | Article |
| id | doaj.art-333acdd43b6a41b0bc17a19e7f492d2f |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-12-20T20:06:21Z |
| publishDate | 2019-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-333acdd43b6a41b0bc17a19e7f492d2f2022-12-21T19:27:56ZengMDPI AGApplied Sciences2076-34172019-11-01922483110.3390/app9224831app9224831Silane Modification of Crumb Rubber on the Rheological Properties of Rubberized AsphaltYunbao Zhang0Zhaohui Liu1Juan Peng2School of Traffic and Transportation Engineering, Changsha University of Science & Technology, No. 960th South Wanjiali Rd., Changsha 410114, ChinaSchool of Traffic and Transportation Engineering, Changsha University of Science & Technology, No. 960th South Wanjiali Rd., Changsha 410114, ChinaDepartment of Transportation of Hunan Province, No. 1st South Wanjiali Rd., Changsha 410116, ChinaBecause there is a lack of studies on rubberized asphalt based on silane coupling agent modification, KH-550 modified crumb rubber and rubberized asphalts incorporating normal rubber and modified rubber were prepared, respectively. The rheological properties of asphalt samples were evaluated by a dynamic shearing rheometer and a bending beam rheometer; then, mechanisms of KH-550 on rubber surface and functional group changes were analyzed by a Brunauer−Emmett−Teller specific surface area measurement and a Fourier transform infrared spectroscopy. The results imply that: (i) rubber surface area rises and chemical reactions accrue between rubber and asphalt; (ii) modified rubber achieves a more stable state within asphalt, which helps to enhance the mechanical properties of asphalt; (iii) modified rubber helps asphalt to dissipate stress so as to resist the formation of cracks and deformation under low temperature conditions.https://www.mdpi.com/2076-3417/9/22/4831kh-550crumb rubberrubberized asphaltrheologicalmechanical |
| spellingShingle | Yunbao Zhang Zhaohui Liu Juan Peng Silane Modification of Crumb Rubber on the Rheological Properties of Rubberized Asphalt Applied Sciences kh-550 crumb rubber rubberized asphalt rheological mechanical |
| title | Silane Modification of Crumb Rubber on the Rheological Properties of Rubberized Asphalt |
| title_full | Silane Modification of Crumb Rubber on the Rheological Properties of Rubberized Asphalt |
| title_fullStr | Silane Modification of Crumb Rubber on the Rheological Properties of Rubberized Asphalt |
| title_full_unstemmed | Silane Modification of Crumb Rubber on the Rheological Properties of Rubberized Asphalt |
| title_short | Silane Modification of Crumb Rubber on the Rheological Properties of Rubberized Asphalt |
| title_sort | silane modification of crumb rubber on the rheological properties of rubberized asphalt |
| topic | kh-550 crumb rubber rubberized asphalt rheological mechanical |
| url | https://www.mdpi.com/2076-3417/9/22/4831 |
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