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Reduction of Rutting and Fatigue Cracking under Heavy Vehicle Loads and Backcalculation of Layer Moduli. Volume 3; Final rept
| 题名： | Reduction of Rutting and Fatigue Cracking under Heavy Vehicle Loads and Backcalculation of Layer Moduli. Volume 3; Final rept |
| 作者： | Baladi, G. Y.; Harichandran, R.; Mukhtar, H.; Mahmood, T. |
| 关键词： | Pavement wear; Asphalt pavements; Fatigue(Materials); Cracking(Fracturing); Fatigue life; Regression analysis; Cyclic loads; Pavement deflections; Statistical analysis; Field tests; Mechanical properties; Road materials; Highway maintenance; Modulus of elasticity |
| 摘要： | The objectives of this study were to quantify the load and the asphalt-aggregate mix factors that enhance its resistance against rutting and fatigue cracking and to develop a computer program for the backcalculation of pavement layer moduli. Results of indirect cyclic load and other supporting tests conducted on pavement cores, pavement evaluation of rut depth and fatigue cracks, and nondestructive deflection tests (NDT) are presented, compared, and discussed. The cores were obtained from 49 flexible and 15 composite pavement sections. During the course of the investigation, a new computer program for the backcalculation of layer moduli was developed. Relationships between the asphalt mix factors and pavement rutting and fatigue cracking are developed, discussed, and presented. Volume number III contains the Analysis, Discussion, Conclusions, and Recommendations. |
| 总页数： | 346p |
| 报告类型： | 科技报告 |
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