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Detection of Recycled Asphalt Pavement (RAP) in Bituminous Mixtures.
| 题名： | Detection of Recycled Asphalt Pavement (RAP) in Bituminous Mixtures. |
| 作者： | buttlar, w. rebholz, f. e. |
| 关键词： | *Recycled-materials; *Asphalt-pavements.;Bituminous-concrete; Hot-mix-asphalts; Mixtures-; Binders-; Construction-materials; Aggregrates-; Quality-control; Moisture-content; Costs-; Laboratory-tests; Detection-; Monitoring-; Performance-evaluation. |
| 摘要： | The overall goal of this study was to assist the Illinois Department of Transportation (IDOT) in identifying and developing methods for quality assurance of hot-mix asphalt (HMA) containing recycled asphalt pavement (RAP). Although the use of RAP can lead to economical and environmental benefits, the assurance of proper RAP handling and usage in HMA is needed to ensure adequate pavement performance. The two main areas of investigation in this study were: (1) to evaluate current practices for RAP handling and monitoring in Illinois, and (2) to identify and/or develop laboratory tests to detect and quantify the amount of RAP in a given mixture. A detailed survey of Illinois contractors was used to characterize current practices of RAP stockpiling and handling, and to assess the capabilities of the current infrastructure of HMA plants in Illinois, particularly with respect to the ability to control and monitor the rate of RAP proportions in a given mixture. Since most plants have the capability of recording mix composition, it is recommended the IDOT require these records to be kept as part of routine HMA quality control. |
| 报告类型： | 科技报告 |
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