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Reduction of Rutting and Fatigue Cracking under Heavy Vehicle Loads and Backcalculation of Layer Moduli. Volume 2; Final rept
| 题名： | Reduction of Rutting and Fatigue Cracking under Heavy Vehicle Loads and Backcalculation of Layer Moduli. Volume 2; Final rept |
| 作者： | Baladi, G. Y.; Harichandran, R.; Mukhtar, H.; Mahmood, T. |
| 关键词： | Pavement wear; Asphalt pavements; Fatigue(Materials); Cracking(Fracturing); Asphalts; Nondestructive tests; Modulus of elasticity; Cyclic loads; Aggregates; Tensile tests; Pavement deflections; Road materials; Highway maintenance; Sieves |
| 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 II contains the Research Plan, Pavement Sections Selection, and Laboratory and Field Tests. |
| 总页数： | 66p |
| 报告类型： | 科技报告 |
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