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Locating the Drainage Layer for Flexible Pavements; Final rept
| 题名： | Locating the Drainage Layer for Flexible Pavements; Final rept |
| 作者： | Hassan, H. F.; White, T. D. |
| 关键词： | Pavement bases; Drainage systems; Performance evaluation; Filters; Moisture content; Frost; Rain; Measuring instruments; Monitoring; Asphalt; Highways; Finite element analysis |
| 摘要： | This research study involves the evaluation of the drainage performance of three section configurations. The sections were built with a difference in the filter as well as the drainage layer. Indiana No. 5D, and No. 53 impermeable layers were used as a filter. Indiana No. 2 and No. 5C base were used as drainage layer. The study was carried out by field instrumentation, laboratory testing, field data collection, and numerical modeling. The main objective of the study is to evaluate the subdrainage performance of three pavement sections adopted by the Indiana Department of Transportation (INDOT). Instruments were installed to monitor the air and pavement temperature, frost penetration, and pavement moisture conditions, and time and duration of rainfall and pavement outflow volumes. Subgrade and asphalt core samples were obtained from the field. Tests were performed on these samples to determine their hydraulic conductivity characteristics. |
| 总页数： | 277p |
| 报告类型： | 科技报告 |
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