Procedure for Determining Mixing and Compaction Temperatures of Asphalt Binders in Hot Mix Asphalt
| 项目名称： | Procedure for Determining Mixing and Compaction Temperatures of Asphalt Binders in Hot Mix Asphalt |
| 摘要： | The Asphalt Institute (AI) procedure for determining mixing and compaction temperatures of asphalt binders was developed for the standard penetration- and viscosity-graded materials predominantly used in the United States until the 1990s. Since that time, the use of modified binders in hot mix asphalt (HMA) paving has increased significantly. This is particularly true for HMA used on high-volume traffic routes. The AI procedure often requires heating of modified binders to unrealistically high temperatures at which degradation of the asphalt binder can occur. To overcome this problem, highway agencies usually rely on the suppliers of modifiers to recommend mixing and compaction temperatures, and this has produced mixed results. Research to date on methods to determine mixing and compaction temperatures has not substantially improved upon the AI procedure. A fresh look is needed at existing and emerging procedures to determine temperatures that will provide satisfactory aggregate coating and appropriate laboratory specimen compaction without degrading the asphalt binder. The objective of this study is to identify or develop a simple, rapid, and accurate laboratory procedure for determining the mixing and compaction temperatures of asphalt binder. The procedure shall be suitable for routine agency use and applicable to both unmodified and modified binders and may be based on testing of asphalt binders, HMA, or both. |
| 状态： | Completed |
| 资金： | 400000.00 |
| 资助组织： | Federal Highway Administration<==>American Association of State Highway and Transportation Officials (AASHTO)<==>National Cooperative Highway Research Program |
| 项目负责人： | Harrigan, Edward T |
| 执行机构： | Auburn University |
| 开始时间： | 20050701 |
| 实际结束时间： | 20091231 |
| 主题领域： | Construction；Design；Highways；I30: Materials |
相关文献
- Advancing Asphalt Mixture Design through Application of Planar Imaging Techniques and Asphalt Lubricity Testing to Improve Understanding of Effects of WMA on Mixture Workability
- Low Temperature and Moisture Susceptibility of RAP Mixtures with Warm Mix Technology
- Experimental Features in Highway Construction -WMA
- Evaluation of Warm Mix Asphalt Concrete Pavement in South Dakota Conditions
- Determine Viscoelastic Mechanical Properties of Warm Mix Asphalt (WMA)-Reclaimed Asphalt Pavement (RAP) Mixes under High Stresses in Airfield Flexible Pavements and Its Impact on Design Life
- Enhancing the Performance of Asphalt Mixtures Containing High RAP Content with the Use of Different WMA Technologies
检索历史
应用推荐
