Experimental Investigation into Permeable Asphalt Pavement Based on Small-Scale Accelerated Testing
The durability of permeable pavement needs to be further studied by accelerated pavement testing (APT). Full-scale APT facilities are commonly associated with a very high initial investment and operational costs. A piece of small-scale accelerated testing equipment, the model mobile load simulator (...
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MDPI AG
2025-04-01
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| author | Bing Yang Hui Li Yingtao Li Murong Cheng Yang Sun Yuzhao Han |
| author_facet | Bing Yang Hui Li Yingtao Li Murong Cheng Yang Sun Yuzhao Han |
| author_sort | Bing Yang |
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| description | The durability of permeable pavement needs to be further studied by accelerated pavement testing (APT). Full-scale APT facilities are commonly associated with a very high initial investment and operational costs. A piece of small-scale accelerated testing equipment, the model mobile load simulator (MMLS), was used to investigate and evaluate the mechanical properties of three types of permeable asphalt pavements, including a 4 cm porous asphalt layer with cement-treated permeable base (4PA-CTPB), 7 cm porous asphalt layer with cement-treated permeable base (7PA-CTPB), and 7 cm porous asphalt layer with cement-treated base (7PA-CTB). Under different conditions of subgrade soil, transverse and longitudinal strains at the bottom of the porous asphalt layer and average rut depth and temperature data were collected. The results indicated that 4PA-CTPB produced the maximum average rut depth but minimum resilient tensile strain. The transverse resilient tensile strain of 7PA-CTPB was significantly higher than the other two structures under both wet and dry conditions. The transverse resilient tensile strain significantly increased with increasing loading cycles with a decreasing rate, which could be affected by both load and temperature. MMLS could be used to explore and evaluate the mechanical properties of permeable asphalt pavement. From the data under dry and wet conditions, it may be better to increase the strength of the subgrade, where a suitable hydraulic conductivity coefficient should be considered. |
| format | Article |
| id | doaj-art-b17b18fe6ebf4770babb623efeaaa87c |
| institution | OA Journals |
| issn | 2076-3417 |
| language | English |
| publishDate | 2025-04-01 |
| publisher | MDPI AG |
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| spelling | doaj-art-b17b18fe6ebf4770babb623efeaaa87c2025-08-20T02:17:24ZengMDPI AGApplied Sciences2076-34172025-04-01158435910.3390/app15084359Experimental Investigation into Permeable Asphalt Pavement Based on Small-Scale Accelerated TestingBing Yang0Hui Li1Yingtao Li2Murong Cheng3Yang Sun4Yuzhao Han5Jiangsu Expressway Engineering Maintenance Technology Co., Ltd., Nanjing 210000, ChinaThe Key Laboratory of Road and Traffic Engineering, Ministry of Education, Tongji University, Shanghai 201804, ChinaJiangsu Expressway Engineering Maintenance Technology Co., Ltd., Nanjing 210000, ChinaJiangsu Expressway Engineering Maintenance Technology Co., Ltd., Nanjing 210000, ChinaThe Key Laboratory of Road and Traffic Engineering, Ministry of Education, Tongji University, Shanghai 201804, ChinaThe Key Laboratory of Road and Traffic Engineering, Ministry of Education, Tongji University, Shanghai 201804, ChinaThe durability of permeable pavement needs to be further studied by accelerated pavement testing (APT). Full-scale APT facilities are commonly associated with a very high initial investment and operational costs. A piece of small-scale accelerated testing equipment, the model mobile load simulator (MMLS), was used to investigate and evaluate the mechanical properties of three types of permeable asphalt pavements, including a 4 cm porous asphalt layer with cement-treated permeable base (4PA-CTPB), 7 cm porous asphalt layer with cement-treated permeable base (7PA-CTPB), and 7 cm porous asphalt layer with cement-treated base (7PA-CTB). Under different conditions of subgrade soil, transverse and longitudinal strains at the bottom of the porous asphalt layer and average rut depth and temperature data were collected. The results indicated that 4PA-CTPB produced the maximum average rut depth but minimum resilient tensile strain. The transverse resilient tensile strain of 7PA-CTPB was significantly higher than the other two structures under both wet and dry conditions. The transverse resilient tensile strain significantly increased with increasing loading cycles with a decreasing rate, which could be affected by both load and temperature. MMLS could be used to explore and evaluate the mechanical properties of permeable asphalt pavement. From the data under dry and wet conditions, it may be better to increase the strength of the subgrade, where a suitable hydraulic conductivity coefficient should be considered.https://www.mdpi.com/2076-3417/15/8/4359permeable pavementporous asphaltaccelerated pavement testingmechanical propertiesstrain |
| spellingShingle | Bing Yang Hui Li Yingtao Li Murong Cheng Yang Sun Yuzhao Han Experimental Investigation into Permeable Asphalt Pavement Based on Small-Scale Accelerated Testing Applied Sciences permeable pavement porous asphalt accelerated pavement testing mechanical properties strain |
| title | Experimental Investigation into Permeable Asphalt Pavement Based on Small-Scale Accelerated Testing |
| title_full | Experimental Investigation into Permeable Asphalt Pavement Based on Small-Scale Accelerated Testing |
| title_fullStr | Experimental Investigation into Permeable Asphalt Pavement Based on Small-Scale Accelerated Testing |
| title_full_unstemmed | Experimental Investigation into Permeable Asphalt Pavement Based on Small-Scale Accelerated Testing |
| title_short | Experimental Investigation into Permeable Asphalt Pavement Based on Small-Scale Accelerated Testing |
| title_sort | experimental investigation into permeable asphalt pavement based on small scale accelerated testing |
| topic | permeable pavement porous asphalt accelerated pavement testing mechanical properties strain |
| url | https://www.mdpi.com/2076-3417/15/8/4359 |
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