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Comparative mechanistic-empirical analysis for design of alternative cold recycled asphalt technologies with conventional pavement

机译：传统路面替代冷再生沥青技术设计的比较力学-经验分析

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It is essential to carry out a detailed study on the mechanical behaviour of materials so as to evaluate the distress parameters of flexible pavements. This study can be performed through finite element simulations like ANSYS, KENPAVE, IITPAVE, etc. However, this study was mainly carried out using the pavement designing tool ANSYS to study and compare the mechanical behaviour of a typical conventional pavement with hot bituminous surfacing, with cold recycled emulsified and foamed base pavements with fresh overlay. Further, the results obtained from this ANSYS were compared with other simulations like KENPAVE and IITPAVE. Optimum design thickness of the pavement was determined based upon the predicted tensile and compressive strain from laboratory resilient modulus values. The analytical results showed that, linear elastic analysis in both KENPAVE and IITPAVE match well, but a slight lesser tensile strain and vertical displacement values are observed in ANSYS. Also, the study was extended towards the comparative cost benefit analysis of both recycled and conventional mixes. Through this study, it was observed that recycled mix is economical when compared to conventional mixes.
机译：必须对材料的机械性能进行详细研究，以评估柔性路面的遇险参数。可以通过有限元模拟（例如ANSYS，KENPAVE，IITPAVE等）进行这项研究。但是，这项研究主要是使用路面设计工具ANSYS进行的，以研究和比较典型的传统沥青路面热沥青路面的力学性能。冷再生的乳化和发泡基层路面，并有新鲜的覆盖层。此外，将从该ANSYS获得的结果与KENPAVE和IITPAVE等其他模拟进行了比较。人行道的最佳设计厚度是根据实验室弹性模量值预测的拉伸和压缩应变确定的。分析结果表明，KENPAVE和IITPAVE中的线性弹性分析都很好地匹配，但是在ANSYS中观察到的拉伸应变和垂直位移值略小。此外，该研究还扩展到了再生和传统混合物的比较成本效益分析。通过这项研究，观察到与传统混合物相比，再生混合物是经济的。

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