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Impacts of high modulus agent and anti-rutting agent on performances of airfield asphalt pavement

机译：高模量代理和防车削剂对机场沥青路面性能的影响

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Polymer modifiers have been widely used in asphalt binders to improve the high temperature performances and rutting resistances in airfield pavement. The objective of this study was to investigate the high and low temperature performances of three polymers and styrene-butadienestyrene (SBS) modified binders before and after a short-term aging procedure, and the performances of their corresponding mixtures. A series of tests were performed to determine the effects of polymers on the binders and mixtures, such as Theological properties of the modified binders and engineering performances of mixtures at high and low temperatures. The test results show that, compared with the SBS modified binders, the polymer modifiers remarkably influenced on the virgin binders, and the high temperature performance of virgin binders with a high polymer modifiers content is similar to that of the SBS modified binders, but both SBS and polymers have negative impacts on low temperature performance. In terms of asphalt mixture, the polymer can enhance the adhesion of asphalt to improve the rutting resistance, and has appreciable effect on dynamic stability and moisture stability, but only the SBS modified asphalt mixtures with polymers have better pavement performance, the polymer modified virgin asphalt mixtures are still not applicable to the airfield pavement. (C) 2019 Elsevier Ltd. All rights reserved.
机译：聚合物改性剂已广泛用于沥青粘合剂中，以改善机场路面中的高温性能和车辙电阻。本研究的目的是研究三种聚合物和苯乙烯 - 丁二烯酸丁烯（SBS）改性粘合剂的高温和低温性能，以及在短期老化程序之前和之后的粘合剂，以及它们相应的混合物的性能。进行了一系列测试以确定聚合物对粘合剂和混合物上的影响，例如改性粘合剂的神学性质和高温下的混合物的工程性能。测试结果表明，与SBS改性粘合剂相比，聚合物改性剂对原始粘合剂显着影响，以及具有高聚合物改性剂含量的原始粘合剂的高温性能与SBS改性粘合剂的高温性能相似，而是两个SBS聚合物对低温性能产生负面影响。就沥青混合物而言，聚合物可以增强沥青的粘附性，以提高车辙抗性，对动态稳定性和水分稳定性具有明显的影响，但只有SBS改性沥青混合物与聚合物具有更好的路面性能，聚合物改性的维珍沥青混合物仍然不适用于机场路面。 （c）2019 Elsevier Ltd.保留所有权利。

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