Bridge Deck Cracking Evaluation
| 项目名称： | Bridge Deck Cracking Evaluation |
| 摘要： | The Montana Department of Transportation (MDT) noted severe cracking on two bridge decks in the spring of 2016, which led to holes in the decks after small sections of concrete fell through. MDT hired a consultant to investigate the cause of the cracks and provide recommendations. The consultant’s report was published in April 2017. Some, but not all, of the recommendations were implemented and proved successful in reducing early age cracking in new bridge decks. Although MDT had success with implementation, documentation of actual in-field procedures was not sufficient. It was determined that improved methods to document in-field procedures and specification enforcement are needed, as well as a methodology to determine which recommendations are resulting in successful outcomes. In this project, researchers will gather data and summarize information from the previous deck pours that applied the recommendations contained in the April 2017 report. Data on new deck pours will be gathered and documented, including an assessment of temperature and stress gradients with modified deck curing; modeling will be used to demonstrate the benefit of modified curing on deck stresses and cracking risk. This project’s final report is expected to include recommendations that can be quickly implemented on future projects. |
| 状态： | Active |
| 资金： | $188,876 |
| 资助组织： | Montana Department of Transportation |
| 项目负责人： | Callejas, Vaneza |
| 执行机构： | Wiss, Janney, Elstner Associates, Incorporated |
| 开始时间： | 20190806 |
| 预计完成日期： | 20211231 |
| 主题领域： | Bridges and other structures；Maintenance and Preservation |
相关文献
- Development, Field Testing, and Implementation of Improved Bridge Parapet Designs
- Guide to Remediate Bridge Deck Cracking
- Application of Internal Curing to Improve Concrete Bridge Deck Performance
- Rapid Replacement of Bridge Decks - Phase V, Laboratory Evaluation of Deck Systems
- Bridge Deck Cracking: Effects on In-Service Performance, Prevention, and Remediation
- Construction of Low-Cracking High-Performance Bridge Decks Incorporating New Technology
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