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Performance of Rehabilitated Asphalt Concrete Pavements in LTPP Experiments (Data Collected through February 1997); Final rept. Oct 97-Aug 99
| 题名： | Performance of Rehabilitated Asphalt Concrete Pavements in LTPP Experiments (Data Collected through February 1997); Final rept. Oct 97-Aug 99 |
| 作者： | Rauhut, J. B.; Von Quintus, H. L.; Eltahan, A. |
| 关键词： | Asphalt pavements; Concretes; Performance evaluation; Highways; Surface roughness; Pavement overlays; Fatigue cracking; Maintenance; Assessment; Thickness; Trends; Tables(Data); Rehabilitation |
| 摘要： | Two experiments are included within the Long Term Pavement Performance (LTPP) program to provide data on the performance of rehabilitated asphalt concrete (AC) pavements. These two experiments include Specific Pavement Studies No. 5 (SPS-5) and General Pavement Studies No. 6 (GPS-6). The SPS-5 experiment was developed to study the performance of AC overlays of existing AC pavements and includes nine test sections per project. The GPS experiment was designed to monitor test sections selected from existing pavements that were nominated by State Highway Agencies (SHAs). This report summarizes the performance trends and initial observations of the 17 SPS-5 projects and the 125 GPS-6 test sections. It provides results that can be sued in making rehabilitation decisions. The primary approach adopted was the development of graphs of performance indicators (or distress types) versus time. These performance indicators included fatigue cracking, longitudinal cracking with the wheel path and outside the wheel path, transverse cracking, rutting, and roughness. The analyses were made to evaluate the effects of the different experimental factors included within the SPS-5 and GPS-6 experiments on performance. |
| 总页数： | 290p |
| 报告类型： | 科技报告 |
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