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Field Investigation of High Performance Pavements in Virginia.
| 题名： | Field Investigation of High Performance Pavements in Virginia. |
| 作者： | AL-QADI, I. L.; CLARK, T.; FLINTSCH, G. W.; LAHOUAR, S.; LOULIZI, A.; MCGHEE, K. |
| 关键词： | *Aggregates-; *Concrete-pavements.;Pavement-sections; High-traffic-highways; Flexible-pavements; Composite-pavements; Continuously-reinforced-concrete-pavements; Jointed-plain-concrete-pavements; Field-tests; Virginia-. |
| 摘要： | This study evaluated 18 pavement sections located in high-traffic highways in Virginia to find a premium pavement design with a life span of 40 years or more using current and past field experience. The selected pavement sections were thought to perform well. Eight flexible pavements, six composite pavements, two continuously reinforced concrete pavements, and two jointed plain concrete pavements were investigated. Field testing consisted of (1) falling weight deflectometer (FWD) testing to assess the structural capacity of the different pavements and to back calculate the pavement layer materials' moduli, (2) ground-penetrating radar (GPR) scanning to determine layer thicknesses and to locate any abnormalities inside the pavements, (3) digital imaging to determine condition indices, (4) longitudinal profile measurements to calculate International Roughness Index, and (5) coring and boring to perform material characterization of pavement layers. Hot mix asphalt tests included resilient modulus and creep compliance. Concrete was tested for compressive strength. |
| 报告类型： | 科技报告 |
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