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Asphalt Content Determination by the Ignition Method; Summary rept
| 题名： | Asphalt Content Determination by the Ignition Method; Summary rept |
| 作者： | Brown, E. R.; Murphy, N. E. |
| 关键词： | Hot mix paving mixtures; Test methods; Asphalts; Composition(Property); Asphalt pavements; Road materials; Bituminous concretes; Aggregates; Accuracy; Specifications; Samples; Pycnometers; Highway maintenance |
| 摘要： | This paper describes the development and testing for the ignition method for determining asphalt content and aggregate gradation of asphalt-aggregate mixtures. The ignition method utilizes the mass of hot-mixed asphalt mixture before and after removal of asphalt cement by burning at 593 C (1100 F) to measure asphalt content. The recovered aggregate from ignition testing may also be used for gradation analysis. The test procedure is safer and simpler than current methods of asphalt content and gradation determination. The ignition method was evaluated in both the laboratory and field. In the laboratory, ignition testing was performed on 80 samples of hot-mixed asphalt. The ignition method proved to be precise and accurate in determining both asphalt content and aggregate gradation. |
| 总页数： | 14p |
| 报告类型： | 科技报告 |
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