Characteristics of Internal Water Flow Conduction within Asphalt Mixtures Based on Real Three-Dimensional Void Structure
This work presents a new approach to investigating water conduction properties in real three-dimensional (3D) voids of asphalt mixtures. Three different molding methods were employed for the same grade of asphalt mixture, and the three asphalt mixture specimens were scanned using X-ray Computerized...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2023-07-01
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| Series: | Buildings |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2075-5309/13/7/1746 |
| _version_ | 1797589996507496448 |
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| author | Cheng Wan Qiang Yi Xiaoning Zhang |
| author_facet | Cheng Wan Qiang Yi Xiaoning Zhang |
| author_sort | Cheng Wan |
| collection | DOAJ |
| description | This work presents a new approach to investigating water conduction properties in real three-dimensional (3D) voids of asphalt mixtures. Three different molding methods were employed for the same grade of asphalt mixture, and the three asphalt mixture specimens were scanned using X-ray Computerized Tomography (CT) to identify the real 3D void structure distribution inside the mixture. The real 3D behavior of void moisture conduction inside the mixture was simulated using the discrete lattice Boltzmann method and the BGK collision model. Three different molding methods were used to study the behavior of mesoscopic seepage inside the specimen. The results show that water conduction varies substantially in real 3D voids inside diverse molded objects. Regardless of flow and flow velocity, the Superpave Gyratory Compactor (SGC) method is extraordinarily close to the conduction qualities of the actual field core material. It shows that the Marshall molding method is inconsistent with the actual pavement molding method, and the SGC method can not only ensure that the reasonable void ratio is conducive to the thermal expansion and cold shrinkage space of the asphalt mixture but also prevents rainwater from entering the asphalt mixture. This work provides a new perspective for the study of water damage resistance and medium transmission characteristics of asphalt mixtures. |
| first_indexed | 2024-03-11T01:14:06Z |
| format | Article |
| id | doaj.art-e9241c7cf88243cbbf05561140257108 |
| institution | Directory Open Access Journal |
| issn | 2075-5309 |
| language | English |
| last_indexed | 2024-03-11T01:14:06Z |
| publishDate | 2023-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Buildings |
| spelling | doaj.art-e9241c7cf88243cbbf055611402571082023-11-18T18:38:18ZengMDPI AGBuildings2075-53092023-07-01137174610.3390/buildings13071746Characteristics of Internal Water Flow Conduction within Asphalt Mixtures Based on Real Three-Dimensional Void StructureCheng Wan0Qiang Yi1Xiaoning Zhang2School of Civil and Engineering, Guangzhou Maritime University, Guangzhou 510725, ChinaGuangxi Transport Technology Co., Ltd., Nanning 530022, ChinaDepartment of Civil and Transportation Engineering, South China University of Technology, Guangzhou 510640, ChinaThis work presents a new approach to investigating water conduction properties in real three-dimensional (3D) voids of asphalt mixtures. Three different molding methods were employed for the same grade of asphalt mixture, and the three asphalt mixture specimens were scanned using X-ray Computerized Tomography (CT) to identify the real 3D void structure distribution inside the mixture. The real 3D behavior of void moisture conduction inside the mixture was simulated using the discrete lattice Boltzmann method and the BGK collision model. Three different molding methods were used to study the behavior of mesoscopic seepage inside the specimen. The results show that water conduction varies substantially in real 3D voids inside diverse molded objects. Regardless of flow and flow velocity, the Superpave Gyratory Compactor (SGC) method is extraordinarily close to the conduction qualities of the actual field core material. It shows that the Marshall molding method is inconsistent with the actual pavement molding method, and the SGC method can not only ensure that the reasonable void ratio is conducive to the thermal expansion and cold shrinkage space of the asphalt mixture but also prevents rainwater from entering the asphalt mixture. This work provides a new perspective for the study of water damage resistance and medium transmission characteristics of asphalt mixtures.https://www.mdpi.com/2075-5309/13/7/1746asphalt mixtureX-ray computerized tomographymeso-structurewater flow conduction |
| spellingShingle | Cheng Wan Qiang Yi Xiaoning Zhang Characteristics of Internal Water Flow Conduction within Asphalt Mixtures Based on Real Three-Dimensional Void Structure Buildings asphalt mixture X-ray computerized tomography meso-structure water flow conduction |
| title | Characteristics of Internal Water Flow Conduction within Asphalt Mixtures Based on Real Three-Dimensional Void Structure |
| title_full | Characteristics of Internal Water Flow Conduction within Asphalt Mixtures Based on Real Three-Dimensional Void Structure |
| title_fullStr | Characteristics of Internal Water Flow Conduction within Asphalt Mixtures Based on Real Three-Dimensional Void Structure |
| title_full_unstemmed | Characteristics of Internal Water Flow Conduction within Asphalt Mixtures Based on Real Three-Dimensional Void Structure |
| title_short | Characteristics of Internal Water Flow Conduction within Asphalt Mixtures Based on Real Three-Dimensional Void Structure |
| title_sort | characteristics of internal water flow conduction within asphalt mixtures based on real three dimensional void structure |
| topic | asphalt mixture X-ray computerized tomography meso-structure water flow conduction |
| url | https://www.mdpi.com/2075-5309/13/7/1746 |
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