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Roadway rehabilitation in Greenfield, Ind.
| 题名： | Roadway rehabilitation in Greenfield, Ind. |
| 正文语种： | eng |
| 摘要： | Interstate 70 is one of the most heavily traveled East-West interstate highways in the county. Increased traffic due to population growth of the eastern metro Indianapolis area had taken its toll on a stretch of the interstate that runs through Greenfield, Ind. The existing composite pavement had an underlying portland cement concrete (PCC) pavement with five inches of asphalt concrete over it. The asphalt had deteriorated due to surface water infiltration that weakened the pavement foundation layers and enabled fines pumping, erosion, and freeze/thaw damage. To rehabilitate the roadway, all asphalt was milled to the old PCC surface, so that it could be replaced. To ensure that the rehabilitation provided long-term benefits, the Indiana Department of Transportation (INDOT) wanted a solution that would mitigate cracking from the PCC pavement that could reflect up into the new overlay. The worst PCC joints were patched. Moderately stable joints were covered with strips of Petrotac" to extend the life of the replacement overlay. Petrotac is a self-adhering paving membrane interlayer designed to retard reflective cracking through stress absorption/attenuation. |
| 出版年： | 2023 |
| 期刊名称： | Geosynthetics |
| 卷： | 41 |
| 期： | 2 |
| 页码： | 44-44 |
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