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Study on Pavement Performance of Reclaimed Asphalt Mixture

机译：再生沥青混合料的路面性能研究

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In order to improve the pavement performance of reclaimed asphalt mixture, using Marshall test, rutting test, splitting test and long-term aging test, taking stability, dynamic stability, fatigue strength, stiffness modulus, and freeze-thaw splitting tension strength as the target, the influence law of old asphalt mixture content and regenerate content on pavement performance of reclaimed asphalt mixture is systematically studied. The results show that: the proportion of old asphalt mixture has no influence on high temperature performance of reclaimed asphalt mixture. With the proportion of old mixture increases, the optimum asphalt-aggregate ratio, low temperature performance, water stability, and anti-aging property of reclaimed asphalt mixture decrease. Addition of regenerate improves the low temperature performance of reclaimed asphalt mixture, and reduces the strength and high temperature stability of reclaimed asphalt mixture. Research results have great guiding significance for old asphalt mixture content selection, regenerate content selection and improving pavement performance of reclaimed asphalt mixture.
机译：为了提高回收沥青混合料的路面性能，使用马歇尔试验，车辙试验，分裂试验和长期老化试验，采取稳定性，动态稳定性，疲劳强度，刚度模量和冻融分解张力作为靶标系统地研究了旧沥青混合料含量的影响法和再生沥青混合物路面性能的再生含量。结果表明：旧沥青混合料的比例对再生沥青混合料的高温性能没有影响。随着旧混合物的比例增加，再生沥青混合混合物的最佳沥青聚集比，低温性能，水稳定性和抗衰老性能降低。再生添加改善了再生沥青混合物的低温性能，并降低了再生沥青混合物的强度和高温稳定性。研究结果对老沥青混合含量选择，再生含量选择和改善回收沥青混合物的路面性能具有很大的指导意义。

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