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Improved Design and Construction Procedures for Concrete Pavements Based on Mechanistic Modeling Techniques; Final research rept
| 题名： | Improved Design and Construction Procedures for Concrete Pavements Based on Mechanistic Modeling Techniques; Final research rept |
| 作者： | Kunt, M. M.; McCullough, B. F. |
| 关键词： | Concrete pavements; Highway design; Highway construction; Aggregates; Road materials; Stress analysis; Computer programs; Texas; Tables(Data); Reliability; Sawing; Mechanical properties; Cracks; Pavement joints |
| 摘要： | The report describes an improved set of concrete pavement design and construction procedures. In developing these improvements, the authors used a systems approach to incorporate material characterization subsystems and mechanistic techniques into the JRCP-5 computer program. The data obtained from such an approach were then used to develop, analyze, evaluate, and implement the best procedure for designing concrete pavement reinforcement and for determining pavement sawing time and depth. Whereas the original models used to characterize concrete properties could not distinguish the effect of coarse aggregate types (CAT), the improved model now has this capability. Because several aggregate sources are used in Texas, incorporation of the effect of CAT substantially improved the prediction models. Additionally, the report updates the transverse reinforcement formula according to the findings of CTR Project 459. It also develops a probabilistic sawing depth and time prediction model, with all improvements and updates subsequently input into the JRCP-5 computer program. In concluding the report, the authors make recommendations for improving the prediction accuracy of the models. |
| 总页数： | 96p |
| 报告类型： | 科技报告 |
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