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Demonstration Project on Instrumentation of a Flexible Pavement; Final rept
| 题名： | Demonstration Project on Instrumentation of a Flexible Pavement; Final rept |
| 作者： | Sargand, S. M.; Hazen, G. A. |
| 关键词： | Flexible pavements; Pavement bases; Tests; Measuring instruments; Finite element analysis; Models; Strain; Deflection; Moisture content; Temperature; Test equipment; Asphalts; Pressure |
| 摘要： | An instrumentation plan and installation techniques were developed for a full-scale asphalt concrete test pavement. Six asphalt pavement test sections were constructed over an asphalt-treated base, cement-treated base, New Jersey base, Iowa base, 8 inch 304 base and 6 inch 304 base. Upon completion of test sections, moisture, temperature, vertical deflections, pressures, and strains were measured as the pavement was subjected to non-destructive testing. Data were compared to predictions of a finite element model. Field data indicate that the deflection of asphalt with asphalt-treated base varies significantly with change in temperatue. Deflection of the pavement over cement-treated base was the lowest. Among the non-treated bases, the bases with the larger aggregate experienced less deflection. The OU-PAVE finite element program predicted with reasonable accuracy maximum deflection and the deflection profile. |
| 总页数： | 97p |
| 报告类型： | 科技报告 |
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