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Mechanistic Evaluation of the Georgia Loaded Wheel Tester or Superpave Asphalt Mixtures. Final rept.
| 题名： | Mechanistic Evaluation of the Georgia Loaded Wheel Tester or Superpave Asphalt Mixtures. Final rept. |
| 作者： | liang, r. y. saleeb, a. f. |
| 关键词： | *Asphalts-; *Hot-mix-paving-mixtures; *Michanical-tests.;Concrete-pavements; Pavement-wear; Asphalt-pavements; Design-analysis; Admixtures-; Road-materials; Performance-evaluation; Pavement-condition; Simulation-. |
| 摘要： | Rutting of asphalt concrete has been one of the leading distress modes in asphalt pavement, primarily due to increasing truck loads, inadequate mix design, and poor construction methods. The Ohio Department of Transportation is facing the challenge of developing an effective tool for assessing the rutting potential of various HMA (hot mix asphalt concrete) tool for evaluating the mix's propensity for rutting. As a result, ODOT, along with other state highway agencies, has opted for the loaded wheel tester as an effective and inexpensive method for evaluating the rutting behavior of various mix design. The main goals of the research encompass the following: (a) Development of a comprehensive mechanistic rutting model for asphalt concrete mixtures; (b) Development of efficient and robust techniques for extracting basic rutting model parameters from standard mechanical testing or loaded wheel testing; (c) Development of recommendations for improving the GLWT (Georgia Loaded wheel Tester) testing procedures. A series of extensive laboratory test programs has been carried out. |
| 报告类型： | 科技报告 |
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