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GEOSYNTHETICS FOR REFLECTIVE CRACK CONTROL.
| 题名： | GEOSYNTHETICS FOR REFLECTIVE CRACK CONTROL. |
| 作者： | Sposito-B; Brooks-E |
| 关键词： | Asphalt-pavements; Bituminous-overlays; Brittleness-; Geosynthetics-; Installation-; Open-graded-asphalt-mixes; Reflection-cracking; Shrinkage-; Test-sections; Transverse-cracking |
| 摘要： | Reflective cracking due to shrinkage and brittleness in asphalt pavements can seriously degrade an asphalt overlay before it is near its design life. Geosynthetics have been used to impede the reflection of existing transverse cracking to the new overlay. The geosynthetics are intended to minimize the tension transferred to the overlay from the existing pavement. The Oregon Department of Transportation (ODOT) installed a test section consisting of 120 transverse cracks treated with five different geosynthetic types, 22 transverse cracks treated with crack filling only and a control section of 20 untreated transverse cracks. The test and control sections were constructed over an open-graded asphalt concrete pavement. The overlay was also an open-graded mix. The 140 transverse crack section is located on US Highway 97 between Milepoint 213.58 and Milepoint 217.64. |
| 总页数： | 1999/03. pp52 (Tabs., Refs., 3 App.) |
| 报告类型： | 科技报告 |
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