Concrete Slab Jacking
| 项目名称： | Concrete Slab Jacking |
| 摘要： | New Hampshire Department of Transportation's (NHDOT) concrete road sections are a chronic problem to the NHDOT maintenance Districts. The prime culprit for these conditions is poor quality base materials. The deteriorated base conditions result in excessive vibrations and noise from vehicles driving over these roadway sections. Surficial repair is virtually pointless and driver satisfaction is zero. Discussions with URETEK, a company that specializes in subsurface injection of polyurethane foam for jacking and sealing purposes, indicate that it is feasible to treat the existing bases through the pavement. Polymer injection would fill the void spaces under the concrete slab. Expectations are similar to the benefits of cement-stabilization of soils, but without the need for total reconstruction of the roadway. In an atmosphere of pavement preservation, a reasonable initial cost to improve these roadways will save money long term, while improving its service to the public. The purpose of this project is to evaluate the effectiveness of injectable polyurethane foam (such as that used for subsurface jacking applications) as a means of stabilizing unconstructed roadway base materials. |
| 状态： | Active |
| 资金： | $50,000 |
| 资助组织： | New Hampshire Department of Transportation |
| 项目负责人： | Scholz, Ann |
| 执行机构： | New Hampshire Department of Transportation |
| 开始时间： | 20210422 |
| 预计完成日期： | 20221231 |
| 主题领域： | Maintenance and Preservation |
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- SKEW REINFORCED CONCRETE SLAB BRIDGES
- Finite Element Analysis of Concrete Approach Slab on Soil Embankment
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