Guide Specifications for the Construction of Slurry Seals, Scrub Seals, and Tack Coats
| 项目名称： | Guide Specifications for the Construction of Slurry Seals, Scrub Seals, and Tack Coats |
| 摘要： | Pavement preservation provides a means for maintaining and improving the functional condition of an existing highway system. Although pavement preservation is not expected to substantially increase structural capacity, it generally leads to improved pavement performance and longer service life. Slurry seals and scrub seals are frequently used as pavement preservation treatments for flexible pavements. Slurry seals are used to mitigate oxidization and scrub seals are used to seal cracks and prevent moisture intrusion. Tack coats are applied to promote bonding of the preservation treatment to the pavement. Although a great deal of information on the design, materials, and construction practices of these treatments is available, there is no nationally accepted guidance on their construction. There is a need to develop guide construction specifications to help state departments of transportation (state DOTs) apply these treatments more effectively and achieve the most benefit of their application. The objective of this research is to develop recommended guide specifications for the construction of slurry seals, scrub seals, and tack coats as used in preservation treatments. |
| 状态： | Active |
| 资金： | 175000 |
| 资助组织： | National Cooperative Highway Research Program<==>American Association of State Highway and Transportation Officials (AASHTO)<==>Federal Highway Administration |
| 项目负责人： | Hanna, Amir N |
| 执行机构： | University of Arkansas, Little Rock |
| 开始时间： | 20200902 |
| 预计完成日期： | 20220301 |
| 主题领域： | Construction；Highways；Maintenance and Preservation；Pavements |
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