原文传递
Polyurethane Foam for Roadway Stabilization NH Route 129, Loudon, NH
| 题名： | Polyurethane Foam for Roadway Stabilization NH Route 129, Loudon, NH |
| 作者： | Boisvert, D. |
| 关键词： | Polyurethane Foam (PUF)##soil conditions##Gravel road surface aggregate##Polyurethane coatings##Stabilization operations##New Hampshire (state)##Aggregate layer##Implementation##Evaluation##Rural roadways## |
| 摘要： | This report summarizes the evaluation of the performance of polyurethane foam as a method of roadway stabilization for a rural roadway experiencing substantial frost heaving. NHDOT is responsible for many roads which have evolved from gravel roadways and were not constructed with a full aggregate layer. These “unconstructed” roads often experience significant to severe frost heaving due to poor soil conditions and/or inadequate drainage. Segments of NH Route 129 received polyurethane injection in 2011 and 2013. Observations of the roadway indicated rutted conditions begin to return after several years, meaning that the soil displacements continue to occur in the spring as the frost leaves the soil. The goal of the treatment was to improve stability to the point where the roadway could be considered as a candidate for pavement preservation treatments. The failure to meet that goal means that the cost benefits of the resulting improvements are not adequate to implement this research. |
| 总页数： | 33 |
| 报告类型： | 科技报告 |
相关文献
- On-Road Motor Vehicle Emissions including NH3, SO2 and NO2. Final rept.
- On-Road Remote Sensing of Automobile Emissions in the Tulsa Area: Fall 2015.
- On-Road Remote Sensing of Automobile Emissions in the Tulsa Area: Fall 2013.
- Robust Nitrogen Oxide/Ammonia Sensors for Vehicle On-Board Emissions Control, DOE Annual Report.
- Robust Nitrogen Oxide/Ammonia Sensors for Vehicle On-Board Emissions Control, DOE Annual Report
- On-Road Remote Sensing of Automobile Emissions in the Denver Area: Winter 2017.
检索历史
应用推荐
