Macroscopic and Microscopic Characterization of the Effect of “Activation” Process on the Performance of Buton Rock Asphalt-Modified Asphalt
In the process of using Buton rock asphalt- (BRA-) modified asphalt, in order to improve the utilization rate of Buton rock asphalt and the performance of the modified asphalt, this paper puts forward the process of “activation” treatment of Buton rock asphalt, that is, grinding and heating of BRA t...
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| Format: | Article |
| Language: | English |
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Wiley
2020-01-01
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| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2020/8148930 |
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| author | Yafei Li Meng Guo Xu Liu |
| author_facet | Yafei Li Meng Guo Xu Liu |
| author_sort | Yafei Li |
| collection | DOAJ |
| description | In the process of using Buton rock asphalt- (BRA-) modified asphalt, in order to improve the utilization rate of Buton rock asphalt and the performance of the modified asphalt, this paper puts forward the process of “activation” treatment of Buton rock asphalt, that is, grinding and heating of BRA to make natural asphalt precipitate. Laboratory tests show that compared with modified asphalt without activation process, the penetration of the modified asphalt decreases, the softening point rises, the ductility at 5°C and the kinematic viscosity at 135°C all have been increased, and the performance of the modified asphalt increases with the increase of the content of activated BRA. In order to further clarify the effect of “activation” process on the properties of BRA-modified asphalt from microlevel, atomic force microscopy (AFM) was used to test the microproperties of Buton rock asphalt before and after activation. It is found that the Derjaguin–Muller–Toporov (DMT) modulus of the modified asphalt is about 2.5 times that of base asphalt, which indicates that the viscous degree of modified asphalt with activated BRA has been greatly increased and the modification effect is remarkable. |
| format | Article |
| id | doaj-art-d228da887cea441586a1a357b9d37c23 |
| institution | Kabale University |
| issn | 1687-8434 1687-8442 |
| language | English |
| publishDate | 2020-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-d228da887cea441586a1a357b9d37c232025-02-03T05:49:32ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422020-01-01202010.1155/2020/81489308148930Macroscopic and Microscopic Characterization of the Effect of “Activation” Process on the Performance of Buton Rock Asphalt-Modified AsphaltYafei Li0Meng Guo1Xu Liu2School of Transportation Science and Engineering, Harbin Institute of Technology, Harbin 150090, Heilongjiang, ChinaThe Key Laboratory of Urban Security and Disaster Engineering of Ministry of Education, Beijing University of Technology, Beijing 100083, ChinaThe Key Laboratory of Urban Security and Disaster Engineering of Ministry of Education, Beijing University of Technology, Beijing 100083, ChinaIn the process of using Buton rock asphalt- (BRA-) modified asphalt, in order to improve the utilization rate of Buton rock asphalt and the performance of the modified asphalt, this paper puts forward the process of “activation” treatment of Buton rock asphalt, that is, grinding and heating of BRA to make natural asphalt precipitate. Laboratory tests show that compared with modified asphalt without activation process, the penetration of the modified asphalt decreases, the softening point rises, the ductility at 5°C and the kinematic viscosity at 135°C all have been increased, and the performance of the modified asphalt increases with the increase of the content of activated BRA. In order to further clarify the effect of “activation” process on the properties of BRA-modified asphalt from microlevel, atomic force microscopy (AFM) was used to test the microproperties of Buton rock asphalt before and after activation. It is found that the Derjaguin–Muller–Toporov (DMT) modulus of the modified asphalt is about 2.5 times that of base asphalt, which indicates that the viscous degree of modified asphalt with activated BRA has been greatly increased and the modification effect is remarkable.http://dx.doi.org/10.1155/2020/8148930 |
| spellingShingle | Yafei Li Meng Guo Xu Liu Macroscopic and Microscopic Characterization of the Effect of “Activation” Process on the Performance of Buton Rock Asphalt-Modified Asphalt Advances in Materials Science and Engineering |
| title | Macroscopic and Microscopic Characterization of the Effect of “Activation” Process on the Performance of Buton Rock Asphalt-Modified Asphalt |
| title_full | Macroscopic and Microscopic Characterization of the Effect of “Activation” Process on the Performance of Buton Rock Asphalt-Modified Asphalt |
| title_fullStr | Macroscopic and Microscopic Characterization of the Effect of “Activation” Process on the Performance of Buton Rock Asphalt-Modified Asphalt |
| title_full_unstemmed | Macroscopic and Microscopic Characterization of the Effect of “Activation” Process on the Performance of Buton Rock Asphalt-Modified Asphalt |
| title_short | Macroscopic and Microscopic Characterization of the Effect of “Activation” Process on the Performance of Buton Rock Asphalt-Modified Asphalt |
| title_sort | macroscopic and microscopic characterization of the effect of activation process on the performance of buton rock asphalt modified asphalt |
| url | http://dx.doi.org/10.1155/2020/8148930 |
| work_keys_str_mv | AT yafeili macroscopicandmicroscopiccharacterizationoftheeffectofactivationprocessontheperformanceofbutonrockasphaltmodifiedasphalt AT mengguo macroscopicandmicroscopiccharacterizationoftheeffectofactivationprocessontheperformanceofbutonrockasphaltmodifiedasphalt AT xuliu macroscopicandmicroscopiccharacterizationoftheeffectofactivationprocessontheperformanceofbutonrockasphaltmodifiedasphalt |