Research Progress on Adhesion Mechanism and Testing Methods of Emulsified Asphalt–Aggregate Interface
With the deepening of the green and low-carbon concept in the field of road engineering, the cold construction asphalt pavement technology has developed rapidly due to its advantages such as low energy consumption, low pollution, and convenient construction. The adhesion between emulsified asphalt a...
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MDPI AG
2025-07-01
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| author | Hao-Yue Huang Xiao Han Sen Han Xiao Ma Jia Guo Yao Huang |
| author_facet | Hao-Yue Huang Xiao Han Sen Han Xiao Ma Jia Guo Yao Huang |
| author_sort | Hao-Yue Huang |
| collection | DOAJ |
| description | With the deepening of the green and low-carbon concept in the field of road engineering, the cold construction asphalt pavement technology has developed rapidly due to its advantages such as low energy consumption, low pollution, and convenient construction. The adhesion between emulsified asphalt and aggregates, as a core factor affecting the performance of cold-mixed mixtures and the lifespan of the pavement, has attracted much attention in terms of its mechanism of action and evaluation methods. However, at present, there are still many issues that need to be addressed in terms of the stability control of adhesion between emulsified asphalt and aggregates, the explanation of the microscopic mechanism, and the standardization of testing methods in complex environments. These problems restrict the further promotion and application of the cold construction technology. Based on this, this paper systematically analyzes the current development status, application scenarios, and future trends of the theory and testing methods of the adhesion between emulsified asphalt and aggregates by reviewing a large number of relevant studies. The research aims to provide theoretical support and practical references for the improvement of adhesion in the cold construction asphalt pavement technology. Research shows that in terms of the adhesion mechanism, the existing results have deeply analyzed the infiltration and demulsification adhesion process of emulsified asphalt on the surface of aggregates and clarified the key links of physical and chemical interactions, but the understanding of the microscopic interface behavior and molecular-scale mechanism is still insufficient. In terms of testing methods, although objective and subjective evaluation methods such as mechanical tensile tests, surface energy evaluation, and adhesion fatigue tests have been developed, the standardization of testing, data comparability, and practical engineering applicability still need to be optimized. Comprehensive analysis shows that the research on the adhesion between emulsified asphalt and aggregates is showing a trend from macroscopic to microscopic, from static to dynamic. There are challenges in predicting and controlling the adhesion performance under complex environments, as well as important opportunities for developing advanced characterization techniques and multiscale simulation methods. |
| format | Article |
| id | doaj-art-e531fcc990654a49b2d43a7e4df64539 |
| institution | Kabale University |
| issn | 2075-5309 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Buildings |
| spelling | doaj-art-e531fcc990654a49b2d43a7e4df645392025-08-20T03:35:58ZengMDPI AGBuildings2075-53092025-07-011515261110.3390/buildings15152611Research Progress on Adhesion Mechanism and Testing Methods of Emulsified Asphalt–Aggregate InterfaceHao-Yue Huang0Xiao Han1Sen Han2Xiao Ma3Jia Guo4Yao Huang5School of Highway, Chang’an University, Xi’an 710064, ChinaSchool of Highway, Chang’an University, Xi’an 710064, ChinaSchool of Highway, Chang’an University, Xi’an 710064, ChinaSchool of Highway, Chang’an University, Xi’an 710064, ChinaSchool of Highway, Chang’an University, Xi’an 710064, ChinaSchool of Highway, Chang’an University, Xi’an 710064, ChinaWith the deepening of the green and low-carbon concept in the field of road engineering, the cold construction asphalt pavement technology has developed rapidly due to its advantages such as low energy consumption, low pollution, and convenient construction. The adhesion between emulsified asphalt and aggregates, as a core factor affecting the performance of cold-mixed mixtures and the lifespan of the pavement, has attracted much attention in terms of its mechanism of action and evaluation methods. However, at present, there are still many issues that need to be addressed in terms of the stability control of adhesion between emulsified asphalt and aggregates, the explanation of the microscopic mechanism, and the standardization of testing methods in complex environments. These problems restrict the further promotion and application of the cold construction technology. Based on this, this paper systematically analyzes the current development status, application scenarios, and future trends of the theory and testing methods of the adhesion between emulsified asphalt and aggregates by reviewing a large number of relevant studies. The research aims to provide theoretical support and practical references for the improvement of adhesion in the cold construction asphalt pavement technology. Research shows that in terms of the adhesion mechanism, the existing results have deeply analyzed the infiltration and demulsification adhesion process of emulsified asphalt on the surface of aggregates and clarified the key links of physical and chemical interactions, but the understanding of the microscopic interface behavior and molecular-scale mechanism is still insufficient. In terms of testing methods, although objective and subjective evaluation methods such as mechanical tensile tests, surface energy evaluation, and adhesion fatigue tests have been developed, the standardization of testing, data comparability, and practical engineering applicability still need to be optimized. Comprehensive analysis shows that the research on the adhesion between emulsified asphalt and aggregates is showing a trend from macroscopic to microscopic, from static to dynamic. There are challenges in predicting and controlling the adhesion performance under complex environments, as well as important opportunities for developing advanced characterization techniques and multiscale simulation methods.https://www.mdpi.com/2075-5309/15/15/2611road engineeringemulsified asphaltadhesionadhesion mechanismevaluation methodmicroscopic interface |
| spellingShingle | Hao-Yue Huang Xiao Han Sen Han Xiao Ma Jia Guo Yao Huang Research Progress on Adhesion Mechanism and Testing Methods of Emulsified Asphalt–Aggregate Interface Buildings road engineering emulsified asphalt adhesion adhesion mechanism evaluation method microscopic interface |
| title | Research Progress on Adhesion Mechanism and Testing Methods of Emulsified Asphalt–Aggregate Interface |
| title_full | Research Progress on Adhesion Mechanism and Testing Methods of Emulsified Asphalt–Aggregate Interface |
| title_fullStr | Research Progress on Adhesion Mechanism and Testing Methods of Emulsified Asphalt–Aggregate Interface |
| title_full_unstemmed | Research Progress on Adhesion Mechanism and Testing Methods of Emulsified Asphalt–Aggregate Interface |
| title_short | Research Progress on Adhesion Mechanism and Testing Methods of Emulsified Asphalt–Aggregate Interface |
| title_sort | research progress on adhesion mechanism and testing methods of emulsified asphalt aggregate interface |
| topic | road engineering emulsified asphalt adhesion adhesion mechanism evaluation method microscopic interface |
| url | https://www.mdpi.com/2075-5309/15/15/2611 |
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