Evaluation of Hybrid Binder Use in Asphalt Mixtures in Louisiana
| 项目名称： | Evaluation of Hybrid Binder Use in Asphalt Mixtures in Louisiana |
| 摘要： | Currently, the Louisiana Department of Transportation and Development (LaDOTD) primarily relies on Styrene-Butadiene-Styrene (SBS) modified asphalt binders to produce and place asphalt mixtures that resist climate- and load-induced distresses on relatively higher-volume roads and facilities. Yet, recent studies indicated supply shortage of styrene-butadiene polymers for the asphalt industry and recommended that alternate asphalt modifiers be considered during supply shortages, including a very interesting alternative: hybrid binders. This study aims to identify and evaluate whether different hybrid binders can perform competitively versus other modified asphalts currently used in Louisiana’s highway applications. This study will also assess the feasibility of using Hybrid Rubber Modified Asphalt (HRMA) mixtures in Louisiana through laboratory testing and structural analysis to predict the field performance of these mixtures. The implementation of this research will reduce the fatigue and rutting distresses in asphalt pavements, which are common problems in South-Central United States. The results of this research will be used to implement and optimize the use of HRMA mix in asphalt pavements in South-Central United States, and to reduce costs. This research will impact state DOTs, highway contractors, transportation, and the public at large. |
| 状态： | Active |
| 资金： | 58832 |
| 资助组织： | Office of the Assistant Secretary for Research and Technology |
| 管理组织： | Transportation Consortium of South-Central States (Tran-SET) |
| 项目负责人： | Dhasmana, Heena |
| 执行机构： | Louisiana State University, Baton Rouge |
| 主要研究人员： | Dhasmana, Heena |
| 开始时间： | 20220401 |
| 主题领域： | Maintenance and Preservation；Materials；Pavements；Planning and Forecasting |
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