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DETERMINATION OF ASPHALT CONTENT BY IGNITION METHOD.
| 题名： | DETERMINATION OF ASPHALT CONTENT BY IGNITION METHOD. |
| 作者： | Zhang-W |
| 关键词： | HOT-MIX-ASPHALT; ASPHALT-CONTENT; IGNITION-METHOD; AGGREGATE-GRADATION; RECYCLED-PAVEMENTS; LABORATORY-TESTS; TEST-RESULTS; SPREADSHEETS-; ESTIMATING-; WEIGHT-LOSS-FACTOR; INDIRECT-CALIBRATION |
| 摘要： | This report presents the results of a four-month research project on the use of the ignition method for determining the asphalt content and aggregate gradation of a hot-mix asphalt concrete mixture. The report includes a review of the available methods on asphalt content determination and the development of the ignition method. This research expanded the knowledge in this area by focusing on Recycled Asphalt Pavement (RAP) mixtures and providing ways to estimate the combined weight loss factor of RAP mixes and virgin mixes made from multiple sources of aggregate. The conclusions drawn from this research are based on the laboratory results of 38 RAP and 36 virgin mixes. Testing showed that regardless of RAP or virgin mix, as long as appropriate procedures are followed, the ignition method can accurately determine asphalt content and aggregate gradation of a mixture. The easy-to-use spreadsheet program written for estimating the combined weight loss factor can save the operator from repeating laboratory calibration on mixes made from identical aggregates but different proportions. |
| 总页数： | 1996/09. pp82 (8 Fig., 12 Tab., 7 Ref., 2 App.) |
| 报告类型： | 科技报告 |
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