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LTPP Seasonal Asphalt Concrete (AC) Pavement Temperature Models; Final rept. Oct 95-Oct 96
| 题名： | LTPP Seasonal Asphalt Concrete (AC) Pavement Temperature Models; Final rept. Oct 95-Oct 96 |
| 作者： | Mohseni, A. |
| 关键词： | Asphalts; Binders(Materials); Seasonal variations; Temperature |
| 摘要： | SUPERPAVE binders are selected based on the lowest and highest pavement temperatures expected at a job. The original SUPERPAVE specifications were developed with limited data for validating the low-temperature algorithm for pavement temperatures. The lowest air temprature was assumed for the lowest pavement temperature. In areas with extremely low temperature, this conservative approach has led to the selection of more restrictive binder grades than may be necessary. These binder grades usually require that modifiers be added to the asphalt, which increases the cost of the project. The report proposes revisions to the Strategic Highway Research Program (SHRP) Performance Grading System for asphalt binder selection. Revised models for determining the low- and high-temperature component of SUPERPAVE performance-based binders are presented and compared with existing models and resulting performance grades. |
| 总页数： | 78p |
| 报告类型： | 科技报告 |
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