Microwave Heating Characteristics of Emulsified Asphalt Repair Materials Incorporated with Steel Slag
Emulsified asphalt needs to be cured for a certain age after demulsification to produce strength, which seriously affects the traffic opening time. In this work, microwave heating technology was applied for emulsified asphalt repair materials. Steel slag with high microwave activity was adopted to i...
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| Main Authors: | , , , |
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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/10.1155/2020/8868752 |
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| author | Yongfeng Wei Jinyang Huo Zhenjun Wang Jiangtao Gao |
| author_facet | Yongfeng Wei Jinyang Huo Zhenjun Wang Jiangtao Gao |
| author_sort | Yongfeng Wei |
| collection | DOAJ |
| description | Emulsified asphalt needs to be cured for a certain age after demulsification to produce strength, which seriously affects the traffic opening time. In this work, microwave heating technology was applied for emulsified asphalt repair materials. Steel slag with high microwave activity was adopted to improve the performance of emulsified asphalt repair materials by microwave heating. Effects of steel slag sizes and contents on the heating rate, temperature distribution, and thermal performance of emulsified asphalt repair materials were analyzed by close microwave heating, open microwave heating, and repair simulation tests. Results show that the temperature of emulsified asphalt repair materials presents three different heating stages under microwave irradiation. The “critical point of phase transition” in the three stages is gradually advanced with the increase in steel slag content. The core temperature and maximum temperature of emulsified asphalt repair materials with different steel slag sizes are basically the same; however, the heat distribution of emulsified asphalt repair materials is significantly different. In contrast to conventional asphalt mixture, there exists a smaller temperature difference. The temperature of repairing materials can reach above 80°C. The interface area can form an embedded interface structure. Incorporation of steel slag and adoption of microwave heating are effective to improve the performance of emulsified asphalt repair materials. |
| format | Article |
| id | doaj-art-2ee564996ff54827b73414ed850d5e07 |
| 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-2ee564996ff54827b73414ed850d5e072025-02-03T01:00:19ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422020-01-01202010.1155/2020/88687528868752Microwave Heating Characteristics of Emulsified Asphalt Repair Materials Incorporated with Steel SlagYongfeng Wei0Jinyang Huo1Zhenjun Wang2Jiangtao Gao3Research and Development Center of Transport Industry of Technologies, Materials and Equipments of Highway Construction and Maintenance (Gansu Province Traffic Construction Group), Lanzhou 730030, ChinaSchool of Materials Science and Engineering, Chang’an University, Xi’an 710061, ChinaSchool of Materials Science and Engineering, Chang’an University, Xi’an 710061, ChinaResearch and Development Center of Transport Industry of Technologies, Materials and Equipments of Highway Construction and Maintenance (Gansu Province Traffic Construction Group), Lanzhou 730030, ChinaEmulsified asphalt needs to be cured for a certain age after demulsification to produce strength, which seriously affects the traffic opening time. In this work, microwave heating technology was applied for emulsified asphalt repair materials. Steel slag with high microwave activity was adopted to improve the performance of emulsified asphalt repair materials by microwave heating. Effects of steel slag sizes and contents on the heating rate, temperature distribution, and thermal performance of emulsified asphalt repair materials were analyzed by close microwave heating, open microwave heating, and repair simulation tests. Results show that the temperature of emulsified asphalt repair materials presents three different heating stages under microwave irradiation. The “critical point of phase transition” in the three stages is gradually advanced with the increase in steel slag content. The core temperature and maximum temperature of emulsified asphalt repair materials with different steel slag sizes are basically the same; however, the heat distribution of emulsified asphalt repair materials is significantly different. In contrast to conventional asphalt mixture, there exists a smaller temperature difference. The temperature of repairing materials can reach above 80°C. The interface area can form an embedded interface structure. Incorporation of steel slag and adoption of microwave heating are effective to improve the performance of emulsified asphalt repair materials.http://dx.doi.org/10.1155/2020/8868752 |
| spellingShingle | Yongfeng Wei Jinyang Huo Zhenjun Wang Jiangtao Gao Microwave Heating Characteristics of Emulsified Asphalt Repair Materials Incorporated with Steel Slag Advances in Materials Science and Engineering |
| title | Microwave Heating Characteristics of Emulsified Asphalt Repair Materials Incorporated with Steel Slag |
| title_full | Microwave Heating Characteristics of Emulsified Asphalt Repair Materials Incorporated with Steel Slag |
| title_fullStr | Microwave Heating Characteristics of Emulsified Asphalt Repair Materials Incorporated with Steel Slag |
| title_full_unstemmed | Microwave Heating Characteristics of Emulsified Asphalt Repair Materials Incorporated with Steel Slag |
| title_short | Microwave Heating Characteristics of Emulsified Asphalt Repair Materials Incorporated with Steel Slag |
| title_sort | microwave heating characteristics of emulsified asphalt repair materials incorporated with steel slag |
| url | http://dx.doi.org/10.1155/2020/8868752 |
| work_keys_str_mv | AT yongfengwei microwaveheatingcharacteristicsofemulsifiedasphaltrepairmaterialsincorporatedwithsteelslag AT jinyanghuo microwaveheatingcharacteristicsofemulsifiedasphaltrepairmaterialsincorporatedwithsteelslag AT zhenjunwang microwaveheatingcharacteristicsofemulsifiedasphaltrepairmaterialsincorporatedwithsteelslag AT jiangtaogao microwaveheatingcharacteristicsofemulsifiedasphaltrepairmaterialsincorporatedwithsteelslag |